Search Results - P (402 entries)

P & D's: Pick up and deliveries of freight.  (ATA1)

P.M. Peak Period: (See also A.M. Peak Period) The period in the afternoon or evening when additional services are provided to handle higher passenger volumes. The period begins when normal headways are reduced and ends when headways are returned to normal.  (FTA1)

PAC: Pacific Region  (USTTA1)

Package Freight: In the historical tables, designates cargo consisting of miscellaneous packages generally unidentifiable as to commodity and carried only on vessels licensed by the respective Authorities in Canada and the United States. This commodity classification is no longer applicable.  (SLSDC1)

Packaging: See also Packing and Crating, Packing Group.

Packaging: A receptacle and any other components or materials necessary for the receptacle to perform its containment function in conformance with the minimum packing requirements of 49CFR, Chapter I, Subchapter C.  (49CFR171)

Packet: A boat, usually a coastal or river steamer, that plies a regular route, carrying passengers, freight, and mail.  (TNDOT1)

Packing and Crating: Establishments primarily engaged in packing, crating, and otherwise preparing goods for shipping.  (BOC1)

Packing Group: A grouping according to the degree of danger presented by hazardous materials. Packing Group I indicates great danger; Packing Group II, medium danger; Packing Group III, minor danger.  (49CFR171)

PAD: Petroleum Administration for Defense  (DOE7)

PADS: Planned Arrival and Departure System  (FAA17)

Paid Storage: A vehicle on assignment to a customer agency but temporarily out of service (usually a seasonally used vehicle).  (GSA2)

Paid-In Capital: Invested capital from stock subscribed or issued at a par or stated value (or the subscription value in the case of stock without par value) for preferred stock and common stock.  (BTS4)

Pajama Wagon: Sleeper tractor.  (ATA1)

PAL: Philippines Airlines  (FAA18)

Pallet: A platform with or without sides, on which a number of packages or pieces may be loaded to facilitate handling by a lift truck.  (MARAD2)

PAM: Peripheral Adapter Module  (FAA19)

Pan Pan: (See also May Day) The international radio-telephony urgency signal. When repeated three times, indicates uncertainty or alert followed by the nature of the urgency.  (FAA4)

Pancake: Brake diaphragm housing.  (ATA1)

Panel Body: Small, fully enclosed truck body often used for small package delivery.  (ATA1)

PAPI: Precision Approach Path Indicator  (FAA17)   (FAA19)

PAR: Police Accident Report  (NHTSA3)

PAR: Preferential Arrival Route  (FAA2)

PAR: Precision Approach Radar  (FAA4)   (FAA6)   (FAA19)

Parachute: A device used or intended to be used to retard the fall of a body or object through the air.  (14CFR1)

Parallel ILS Approaches: Approaches to parallel runways by Instrument Flight Rules (IFR) aircraft which, when established inbound toward the airport on the adjacent final approach courses, are radar separated by at least 2 miles.  (FAA4)

Parallel Offset Route: A parallel track to the left or right of the designated or established airway/route. Normally associated with Area Navigation (RNAV) operations.  (FAA4)

Parallel Runway: Two or more runways at the same airport whose centerlines are parallel. In addition to runway numbers, parallel runways are designated as L (left) and R (right) or, if three parallel runways exist, L (left), C (center), and R (right).  (FAA4)

Paratransit: Comparable transportation service required by the American Disabilities Act (ADA) for individuals with disabilities who are unable to use fixed route transportation systems.  (49CFR37)   (APTA1)

PARIS: Passenger Routing and Information System  (FTA4)

Park: (See also Parkway) A place or area set aside for recreation or preservation of a cultural or natural resource.  (DOI4)

Park and Ride: An access mode to transit in which patrons drive private automobiles or ride bicycles to a transit station, stop, or carpool/vanpool waiting area and park the vehicle in the area provided for the purpose. They then ride the transit system or take a car-or vanpool to their destinations.  (TRB1)

Park and Ride Lot: Designated parking area for automobile drivers who then board transit vehicles from these locations.  (APTA1)

Parking Area: An area set aside for the parking of motor vehicles.  (DOI4)

Parking Brake: A mechanism designed to prevent the movement of a stationary motor vehicle.  (49CFR571)

Parking Brake System: A brake system used to hold a vehicle stationary.  (49CFR393)

Parkway: (See also Park) A highway that has full or partial access control, is usually located within a park or a ribbon of park-like developments, and prohibits commercial vehicles. Buses are not considered commercial vehicles in this case.  (FHWA2)

Participating Agency: A federal department or agency which transferred (consolidated) vehicles to the Interagency Fleet Management System (IFMS).  (GSA2)

Particulates: Carbon particles formed by partial oxidation and reduction of the hydrocarbon fuel. Also included are trace quantities of metal oxides and nitrides, originating from engine wear, component degradation, and inorganic fuel additives. In the transportation sector, particulates are emitted mainly from diesel engines.  (DOE6)

Pass: Any one of several distributary channels near the mouth of the Mississippi River.  (TNDOT1)

Pass Cells: Piers on each side of the navigable pass of a dam.  (TNDOT1)

Pass Sill Gage: Gage indicating depth through navigable pass.  (TNDOT1)

Pass-Through Funds: Operating financial assistance passed through to other transit agencies that have no relationship to the directly operated and/or purchased transportation services provided by the designated recipient.  (FTA1)

Passenger: With respect to vessels and for the purposes of 49 CFR 176 only means a person being carried on a vessel other than: the owner or his representative; the operator; a bona fide member of the crew engaged in the business of the vessel who has contributed no consideration for his carriage and who is paid for his services; or a guest who has not contributed any consideration directly or indirectly for his carriage.  (49CFR171)

Passenger: A person who is on, boarding, or alighting from a railroad car for the purpose of travel, without participating in its operation.  (FRA3)

Passenger: Any occupant of a motor vehicle who is not a driver.  (NHTSA3)

Passenger Automobile: A passenger automobile is any automobile (other than an automobile capable of off-highway operation) manufactured primarily for use in the transportation of not more than 10 individuals.  (49CFR523)

Passenger Car: A unit of rolling equipment intended to provide transportation for members of the general public, including self-propelled cars designed to carry baggage, mail, express and passengers.  (49CFR223)

Passenger Car: A motor vehicle with motive power, except a multipurpose passenger vehicle, motorcycle, or trailer, designed for carrying 10 persons or less.  (49CFR571)

Passenger Car: Any motor vehicle that is a convertible; 2-door sedan, hardtop, or coupe; a 4-door sedan or hardtop; a 3-or 5-door hatchback coupe; an automobile with pickup body; or station wagon.  (NHTSA1)

Passenger Car: Any motor vehicle that is an automobile, auto-based pickup, large limousine, or three-wheel automobile or automobile derivative.  (NHTSA2)

Passenger Car: Motor vehicles used primarily for carrying passengers, including convertibles, sedans, and station wagons.  (NHTSA3)

Passenger Car Equivalence: The representation of larger vehicles, such as buses, as equal to a quantity of automobiles (passenger cars) for use in level of service and capacity analyses.  (TRB1)

Passenger Count: A count of the passengers on a vehicle or who use a particular facility.  (TRB1)

Passenger Enplanements: The total number of passengers boarding an aircraft.  (BTS6)

Passenger Facility Charge (PFC): (See also Apportionment) Public agencies controlling a commercial service airport can charge enplaning passengers using the airport a $1, $2, or $3 facility charge. Public agencies must apply to the FAA and meet certain requirements in order to impose a PFC.  (FAA11)

Passenger Flow: The number of passengers who pass a given location in a specified direction during a given period.  (TRB1)

Passenger Load Factor: The percent that revenue passenger miles are of available seat-miles in revenue passenger services, representing the proportion of aircraft seating capacity that is actually sold and utilized.  (BTS6)   (FAA11)

Passenger Mile: One passenger transported one mile. Total passenger miles are computed by summation of the products of the aircraft miles flown on each inter-airport flight stage multiplied by the number of passengers carried on that flight stage.  (AIA1)   (FAA11)   (NTSB1)

Passenger Mile: The movement of a passenger for one mile.  (FRA2)

Passenger Miles: The total number of miles traveled by passengers on transit vehicles; determined by multiplying the number of unlinked passenger trips times the average length of their trips.  (APTA1)

Passenger Miles: The cumulative sum of the distances ridden by each passenger.  (FTA1)

Passenger Miles: The total number of miles traveled by transit passengers (e.g., a bus that carries 5 passengers for a distance of 3 miles incurs 15 passenger miles).  (FTA2)

Passenger Per Aircraft Mile: The average number of passengers carried per aircraft in revenue passenger services, derived by dividing the total revenue passenger-miles by the total aircraft miles flown in revenue passenger services.  (BTS6)

Passenger Revenue: Money, including fares and transfer, zone, and park-and-ride parking charges, paid by transit passengers; also known as "farebox revenue."  (APTA1)

Passenger Revenue Ton Mile: One ton of revenue passenger weight (including all baggage) transported one mile. The passenger weight standard for both domestic and international operations is 200 pounds.  (BTS5)   (BTS6)

Passenger Service: Both intercity rail passenger service and commuter rail passenger service.  (49CFR245)

Passenger Service Expenses: Costs of activities contributing to comfort, safety, and convenience of passengers while in flight and when flights are interrupted. Includes salaries and expenses of flight attendants and passenger food expenses.  (BTS4)

Passenger Vehicle: A vehicle with a Gross Vehicle Weight Rating (GVWR) of 10,000 pounds or less which includes passenger cars, light pickup trucks, light vans, and utility vehicles.  (NHTSA4)

Passenger Vehicle Crash: A motor vehicle crash involving at least one passenger vehicle.  (NHTSA4)

Passenger Vessel: 1) A vessel subject to any of the requirements of the International Convention for the Safety of Life at Sea, 1974, which carries more than 12 passengers; 2) A cargo vessel documented under the laws of the United States and not subject to that Convention, which carries more than 16 passengers; 3) A cargo vessel of any foreign nation that extends reciprocal privileges and is not subject to that Convention and which carries more than 16 passengers; and 4) A vessel engaged in a ferry operation and which carries passengers.  (49CFR171)

Passenger-Carrying Aircraft: An aircraft that carries any person other than a crewmember, company employee, an authorized representative of the United States, or a person accompanying the shipment.  (49CFR171)

Passenger-Carrying Volume: The sum of the front seat volume and, if any, rear seat volume, as defined in 40 CFR 600.315, in the case of automobiles to which that term applies. With respect to automobiles to which that term does not apply, "passenger-carrying volume" means the sum in cubic feet, rounded to the nearest 0.1 cubic feet, of the volume of a vehicle's front seat and seats to the rear of the front seat, as applicable, calculated in 49 CFR 523.2 with the head room, shoulder room, and leg room dimensions determined in accordance with the procedures outlined in Society of Automotive Engineers (SAE) Recommended Practice J1100a, Motor Vehicle Dimensions (Report of Human Factors Engineering Committee, Society of Automotive Engineers, approved September 1973 and last revised September 1975).  (49CFR523)

Passenger-Miles: One passenger transported 1 mile. Passenger miles are computed by the summation of the products of the aircraft-miles flown on each inter-airport flight multiplied by the number of passengers carried on the flight.  (DOE6)

Passenger-Miles Traveled (PMT): One person traveling the distance of one mile. Total passenger-miles traveled by all persons.  (DOE6)

Passengers On Trains (Class C): Persons who are on, boarding, or alighting from railroad cars for the purpose of travel.  (FRA2)

Passing Daymark: A rectangular or triangular daymark used on lights which are intended for position reference only and are not to be steered on.  (TNDOT1)

PATH: Port Authority Trans-Hudson (New York City/New Jersey)  (FTA4)

PATH: Program for Advanced Transit and Highway  (FHWA14)

Patron: A person who intends to use or has used the transit system and is on property affiliated with the transit system. An employee is not a patron.  (FTA1)

PATS: Precision Automated Tracking System  (FAA19)

PATWAS: Pilot's Automatic Telephone Weather Answering Service  (FAA8)

Paved Road Surface: Bituminous, concrete, brick, block, and other special surfaces.  (FHWA2)

Paved Surface: Surface of asphalt or concrete.  (DOI3)

PAX: Passenger  (MTMC1)

Payload: The maximum load that a unit of equipment may carry within its total rated capacity. The payload is the Gross Vehicle Weight Rating (GVWR) less the tare weight or actual weight of the unloaded vehicle.  (GSA2)

Payload: Weight of commodity being hauled. Includes packaging, pallets, banding, etc., but does not include the truck, truck body, etc.  (TII1)   (TII2)

PB: Lead  (BTS2)

PBCT: Proposed Boundary Crossing Time  (FAA4)

PBI: Palm Beach International Airport  (FAA11)

PBJ: Peanut Butter and Jelly Sandwich

PC: Personal Computer  (USCG5)

PC: Politically Correct

PCA: Positive Control Airspace  (FAA17)

PCC: Portland Cement Concrete  (FHWA7)

PCD: Personal Communication Device  (FTA4)

PCE: Passenger Car Equivalence  (TRB1)

PCE: Personal Consumption Expenditure  (DOE6)

PDAR: Preferential Departure and Arrival Route  (FAA2)

PDC: Pre - Departure Clearance  (FAA17)   (FAA7)   (FAA19)

PDPS: Problem Driver Pointer System  (NHTSA6)

PDQ: Pretty Darn Quick

PDR: Preferential Departure Route  (FAA2)

PDX: Portland International Airport  (FAA11)

Peak Kilowatt: One thousand peak watts.  (DOE5)

Peak Megawatt: One million peak watts.  (DOE5)

Peak Period Surcharge: An extra fee required during peak periods (rush hours).  (APTA1)

Peanut Wagon: Small tractor pulling a large trailer.  (ATA1)

Peat: Peat consists of partially decomposed plant debris. It is considered an early stage in the development of coal. Peat is distinguished from lignite by the presence of free cellulose and a high moisture content (exceeding 70 percent). The heat content of air-dried peat (about 50 percent moisture) is about 9 million Btu per ton. Most U.S. peat is used as a soil conditioner. The first U.S. electric power plant fueled by peat began operating in Maine in 1990.  (DOE5)

Pedalcycle: Vehicle propelled by human power and operated solely by pedals; excludes mopeds.  (NSC1)

Pedalcyclist: A person on a vehicle that is powered solely by pedals.  (NHTSA3)

Pedestrian: Any person not in or upon a motor vehicle or other vehicle.  (NHTSA3)   (NSC1)

Pedestrian Accident: Is any person injured or killed in a highway motor vehicle accident who is not a vehicle occupant.  (FHWA2)

Pedestrian Fatality: Are the number of pedestrians fatally injured in motor vehicle accidents.  (FHWA2)

Pedestrian Walkway (or Walkway): A continuous way designated for pedestrians and separated from the through lanes for motor vehicles by space or barrier.  (23CFR652)

Peg Line: A line used in locks to prevent barge movement.  (TNDOT1)

Peg-Leg: Tandem tractor with only one power axle.  (ATA1)

PEGASUS: People, Goods, and Services Urban System  (Texas)   (FHWA15)

Pegs: Small, bent metal bars countersunk in lock walls and arranged in a vertical line for hooking mooring lines on. Care must be taken that lines do not get hung up on these pegs as the vessel rises or drops in the lock.  (TNDOT1)

Pelvic Impact Area: That area of the door or body side panel adjacent to any outboard designated seating position which is bounded by horizontal planes 7 inches above and 4 inches below the seating reference point and vertical transverse planes 8 inches forward and 2 inches rearward of the seating reference point.  (49CFR571)

Peninsula: A body of land jutting out into and nearly surrounded by water.  (DOI4)

People Mover: An automated transportation system (e.g., continuous belt system or automated guideway transit) that provides short-haul collection distribution service, usually in a major activity center.  (TRB1)

Percent of Enplanement: The percent that a community's enplaned passengers is of the total enplaned passengers in all services and all operations for all communities within the 50 States, the District Columbia, and other U.S. areas designated by the Federal Aviation Administration.  (FAA15)

Percent Scheduled Aircraft Miles Completed: Scheduled aircraft miles completed (excluding extra sections) as a percent of total aircraft miles scheduled.  (BTS5)

Perils of the Sea: Those causes of loss of goods for which the carrier is not legally liable. The elemental risks of ocean transport.  (TNDOT1)

Permanent Echo: Radar signals reflected from fixed objects on the earth's surface; e.g., buildings, towers, terrain. Permanent echoes are distinguished from "ground clutter" by being definable locations rather than large areas. Under certain conditions they may be used to check radar alignment.  (FAA4)

Permit Line: An imaginary line, or plane, approximately parallel to a riverbank, or shore, shoreward of which any marine structure may be erected without the authority of a formal federal navigation permit. Also called harbor line. Established by act of Congress.  (TNDOT1)

Person: See also Pedestrian.

Person Miles of Travel (PMT): A measure of person travel. When one person travels one mile, one person mile of travel results. Where 2 or more persons travel together in the same vehicle, each person makes the same number of person miles as the vehicle miles. Therefore, four persons traveling 5 miles in the same vehicle, make 4 times 5 or 20 person miles.  (FHWA3)

Person Trip: A person trip is a trip by one or more persons in any mode of transportation. Each person is considered as making one person trip. For example, four persons traveling together in one auto make four person trips.  (FHWA3)

Personal Casualties (Boarding and Alighting Vehicle): A non-collision incident boarding or alighting a transit agency vehicle (slips, falls, door closings, lifts) in which one or more persons are injured or die. A boarding or alighting incident must involve physical contact between the passenger and the vehicle.  (FTA1)

Personal Casualties (In Stations/Bus Stops): A non-collision incident (involving stairs, escalators, elevators, passageways, platforms) at a station or bus stop in which one or more persons are injured or die.  (FTA1)

Personal Casualties (Inside Vehicle): A non-collision incident (sudden braking, unexpected swerving) in which one or more persons within the transit vehicle are injured or die.  (FTA1)

Personal Casualty Associated With Escalator: An incident in which a person is hurt while using an escalator in a transit facility. Any incident in this category is included in Personal Casualty in Stations/Bus Stops.  (FTA2)

Personal Casualty Associated With Lifts: An incident in which a person is hurt while using a lift to get on or off a transit vehicle.  (FTA2)

Personal Casualty Entering/Exiting a Vehicle: An incident in which a person is hurt while getting on or off a transit vehicle (e.g., falls or door incidents).  (FTA2)

Personal Casualty In Stations/Bus Stops: An incident in which a person is hurt while using a transit facility. This includes anyone on transit property (e.g., patrons, employees, trespassers) but does not include incidents resulting from illness or criminal activity.  (FTA2)

Personal Casualty On Vehicle: An incident in which a person is injured on a transit vehicle, but not as a result of a collision, derailment/left roadway, or fire.  (FTA2)

Personal Consumption Expenditure (PCE): As used in the national accounts, the market value of purchases of goods and services by individuals and nonprofit institutions and the value of food, clothing, housing, and financial services by them as income in kind. It includes the rental value of owner-occupied houses but excludes purchase of dwellings, which are classified as capital goods (investment).  (DOE6)

Personal Flotation Device (PFD): Lifesaving device approved by the Commandant under 46 CFR 160 (i.e., life jackets).  (USCG1)

Personal Flying: Any use of an aircraft for personal purposes not associated with a business or profession, and not for hire. This includes maintenance of pilot proficiency.  (FAA2)   (FAA9)   (FAA14)

Personal Flying: Flying by individuals in their own or rented aircraft for pleasure, or personal transportation not in furtherance of their occupation or company business. This category included practice flying (for the purpose of increasing or maintaining proficiency) not performed under supervision of an accredited instructor, and not part of an approved flight training program.  (NTSB2)

Personal Watercraft: Craft less than 13 feet in length designed to be operated by a person or persons sitting, standing or kneeling on the craft rather than within confines of a hull.  (USCG2)

Persons Otherwise Assisted: Number of persons on an assisted unit who benefited directly from the assistance rendered by the Coast Guard.  (USCG3)

Petroleum: Crude oil, condensate, gasoline, natural gasoline, natural gas liquids, and liquefied petroleum gas.  (49CFR195)

Petroleum: A generic term applied to oil and oil products in all forms, such as crude oil, lease condensate, unfinished oils, petroleum products, natural gas plant liquids, and nonhydrocarbon compounds blended into finished petroleum products.  (DOE3)   (DOE5)   (DOE6)

Petroleum Coke: A residue that is the final product of the condensation process in cracking. This product is reported as marketable coke or catalyst coke. The conversion factor is 5 barrels per short ton.  (DOE3)   (DOE5)

Petroleum Consumption: The sum of all refined petroleum products supplied. For each refined petroleum product, the amount supplied is calculated by adding production and imports, then subtracting changes in primary stocks (net withdrawals are a plus quantity and net additions are a minus quantity) and exports.  (DOE3)

Petroleum Consumption: A calculated demand for petroleum products obtained by summing domestic production, imports of crude petroleum and natural gas liquids,imports of petroleum products, and the primary stocks at the beginning of the period and then subtracting the exports and the primary stocks at the end of the period.  (DOE5)   (DOE6)

Petroleum Exports: Shipments of petroleum products from the 50 States and the District of Columbia to foreign countries, Puerto Rico, the Virgin Islands, and other U.S. possessions and territories.  (DOE6)

Petroleum Imports: Imports of petroleum into the 50 States and the District of Columbia from foreign countries and from Puerto Rico, the Virgin Islands, and other U.S. territories and possessions. Included are imports for the Strategic Petroleum Reserve and withdrawals from bonded warehouses for onshore consumption, offshore bunker use, and military use. Excluded are receipts of foreign petroleum into bonded warehouses and into U.S. territories and U.S. Foreign Trade Zones.  (DOE3)

Petroleum Imports: All imports of crude petroleum, natural gas liquids, and petroleum products from foreign countries and receipts from Guam, Puerto Rico, the Virgin Islands, and the Hawaiian Trade Zone. The commodities included are crude oil, unfinished oils, plant condensate, and refined petroleum products.  (DOE5)   (DOE6)

Petroleum Inventories: The amounts of crude oil, unfinished oil, petroleum products, and natural gas liquids held at refineries, at natural gas processing plants, in pipelines, at bulk terminals operated by refining and pipeline companies, and at independent bulk terminals. Crude oil held in storage on leases is also included.  (DOE6)

Petroleum Product: Flammable, toxic, or corrosive products obtained from distilling and processing of crude oil, unfinished oils, natural gas liquids, blend stocks and other miscellaneous hydrocarbon compounds.  (49CFR195)

Petroleum Products: Petroleum products are obtained from the processing of crude oil (including lease condensate), natural gas, and other hydrocarbon compounds. Petroleum products include unfinished oils, liquefied petroleum gases, pentanes plus, aviation gasoline, motor gasoline, naphtha-type jet fuel, kerosene-type jet fuel, kerosene, distillate fuel oil, residual fuel oil, petrochemical feedstocks, special naphthas, lubricants, waxes, petroleum coke, asphalt, road oil, still gas, and miscellaneous products.  (DOE3)   (DOE5)

Petroleum Refinery: An installation that manufactures finished petroleum products from crude oil, unfinished oils, natural gas liquids, other hydrocarbons, and alcohol.  (DOE5)

PFC: Passenger Facility Charge  (FAA7)   (FAA11)

PFD: Personal Flotation Device  (USCG1)

Phase of Operation: The phase of the flight or operation is the particular phase of flight in which the first occurrence or circumstance occurred. In the event that there was more than one occurrence in one operational phase, the same phase is recorded for each of those occurrences.  (NTSB1)   (NTSB2)

PHL: Philadelphia International Airport  (FAA11)

Photo Reconnaissance: Military activity that requires locating individual photo targets and navigating to the targets at a preplanned angle and altitude. The activity normally requires a lateral route width of 16 nautical miles and altitude range of 1,500 feet to 10,000 feet above ground level (AGL).  (FAA4)

PHX: Phoenix Sky Harbor International Airport  (FAA11)

PIA: Public and International Affairs  (USCG5)

PIARC: Permanent International Assocation of Road Congresses  (FHWA15)

Pick-Up: Small delivery truck.  (ATA1)

Pickup Truck: Includes compact and full-size pickup trucks.  (DOE4)

Pickup Truck: A motorized vehicle, privately owned and/or operated, with an enclosed cab that usually accommodates 2-3 passengers and an open cargo area in the rear. Pickup trucks usually have about the same wheelbase as a full-size station wagon.  (FHWA3)

PIDP: Programmable Indicator Data Processor  (FAA4)

Pier: See also Dock, Marina, Wharf.

Pier: The structure perpendicular to the shoreline to which a vessel is secured for the purpose of loading and unloading cargo.  (MARAD2)

Pig: Trailer transported on flat car.  (ATA1)

Piggyback: (See also Intermodal) A transportation concept whereby truck trailers are hauled on railroad flatcars.  (ATA1)

Piggyback: The transportation of highway trailers or removable trailer bodies on rail cars specifically equipped for the service. It is essentially a joint carrier movement in which the motor carrier forms a pickup and delivery operation to a rail terminal, as well as a delivery operation at the terminating rail head.  (ATA2)

Piggyback Trailers: Trailers which are designed for quick loading on railcars.  (BOC3)

Pigtail: Cable used to transmit electrical power to trailer.  (ATA1)

Pike: Turnpike.  (ATA1)

Pike Pole: (See also Sounding Pole) A long pole with a hook on one end used for pulling in a line or wire that is out of reach. It may also be painted with red and white markings to denote a scale of measuring water depth or barge draft.  (TNDOT1)

Pilferage: The act of broaching and stealing part or all of the content of cargo.  (MARAD1)

Piling: A set of posts forced into the earth to serve as a support, as for a pier, or to resist lateral pressure.  (DOI4)

Piling Area: An area identified as a danger to maritime navigation containing one or more structures consisting of piles (long heavy timbers or sections of steel, concrete etc., forced into the earth to serve as a support, as for a pier).  (DOI3)

Pilot: The helmsman on a riverboat. Also one who, though not belonging to a ship's company, is licensed to guide a vessel into and out of a port or through dangerous waters.  (TNDOT1)

Pilot Briefing: A service provided by a Flight Service Station (FSS) or International Flight Service Station (IFSS) to assist pilots in flight planning. Briefing items may include weather information, Notice to Airmen (NOTAM), military activities, flow control information, and other items as requested.  (FAA2)   (FAA13)   (FAA14)

Pilot Deviation: (See also Operational Deviation, Operational Error, Runway Incursion, Vehicle/Pedestrian Deviation) The actions of a pilot that result in the violation of a Federal Aviation Regulation (FAR) or a North American Aerospace Defense Command (NORAD) Air Defense Identification Zone (ADIZ) tolerance.  (FAA3)   (FAA10)

Pilot In Command: The pilot responsible for the operation and safety of an aircraft during flight time.  (14CFR1)

Pilot Waters: Areas in which the services of a marine pilot are essential.  (DOI4)

Pilot Weather Report: A report of meteorological phenomena encountered by aircraft in flight.  (FAA4)

Pilot's Automatic Telephone Weather Answering Service: A continuous telephone recording containing current and forecast weather information for pilots.  (FAA4)

Pilot's Discretion: When used in conjunction with altitude assignments, means that Air Traffic Control (ATC) has offered the pilot the option of starting a climb or descent whenever he wishes and conducting the climb or descent at any rate he wishes. He may temporarily level off at any intermediate altitude. However, once he has vacated an altitude, he may not return to that altitude.  (FAA4)

Pilotage: Navigation by visual reference to landmarks.  (14CFR1)

Pin-Up: Hook tractor to semitrailer.  (ATA1)

Pinnacle: A tall, slender, spire shaped rock projecting from a level or gently sloping surface.  (DOI4)

PIP: Project Implementation Plan  (FAA19)

Pipe: A tube, usually cylindrical, through which a hazardous liquid or carbon dioxide flows from one point to another.  (49CFR195)

Pipe Line: Discharge line from a hydraulic dredge.  (TNDOT1)

Pipeline: See also Oil Pipeline Mode.

Pipeline: All parts of an onshore pipeline facility through which oil moves including, but not limited to, line pipe, valves, and other appurtenances connected to line pipe, pumping units, fabricated assemblies associated with pumping units, metering and delivery stations and fabricated assemblies therein, and breakout tanks.  (49CFR194)

Pipeline: All parts of a pipeline facility through which a hazardous liquid or carbon dioxide moves including, but not limited to, line pipe, valves, and other appurtenances connected to line pipe, pumping units, fabricated assemblies associated with pumping units, metering and delivery stations and fabricated assemblies therein, and breakout tanks.  (49CFR195)

Pipeline: A continuous pipe conduit, complete with such equipment as valves, compressor stations, communications systems, and meters for transporting natural and/or supplemental gas from one point to another, usually from a point in or beyond the producing field or processing plant to another pipeline or to points of utilization. Also refers to a company operating such facilities.  (DOE5)

Pipeline: A closed conduit, with pumps, valves and control devices, for conveying fluids, gases, or finely divided solids.  (DOI3)

Pipeline Facility: New and existing piping, rights-of-way, and any equipment, facility, or building used in the transportation of gas, hazardous liquids, or carbon dioxide, or in the treatment of gas during the course of transportation.  (49CFR193)   (49CFR195)

Pipeline Fuel: Gas consumed in the operation of pipelines, primarily in compressors.  (DOE3)   (DOE5)

Pipelines Except Natural Gas: Includes establishments engaged in the pipeline transportation of petroleum and other commodities, except natural gas. Also included are coal and slurry pipeline operations.  (BEA1)

Piping: Pipe, tubing, hoses, fittings, valves, pumps, connections, safety devices or related components for containing the flow of hazardous fluids.  (49CFR193)

PIREP: Pilot Report  (FAA4)   (FAA8)

Piroque: A boat or canoe made from a hollowed tree trunk.  (TNDOT1)

PIRS: Pollution Incident Reporting System  (BTS7)

PIT: Pittsburgh International Airport  (FAA11)

Pitch Setting: The propeller blade setting as determined by the blade angle measured in a manner, and at a radius specified by the instruction manual for the propeller.  (14CFR1)

Placarded Car: A rail car which is placarded in accordance with the requirements of 49 CFR 172 except those cars displaying only the FUMIGATION placards as required by 49 CFR 172.510.  (49CFR171)

Place: An area with definite or indefinite boundaries.  (DOI4)

Plain: A region of generally uniform slope, comparatively level, and of considerable extent.  (DOI4)

Platform Area: An area identified as a danger to maritime navigation containing one or more platforms (horizontal surfaces raised above the level of the surrounding area for the purpose of supporting equipment used in the drilling).  (DOI3)

Platform Body: Truck or trailer body with a floor, but no sides or roof.  (ATA1)

Play: Any free movement of components.  (49CFR393)

PLM: Private Label Merchandiser  (USCG1)

PLS: Position Location System  (MARAD4)

Ply Rating: A measure of the strength of tires based on the strength of a single ply of designated construction. A 12 ply rating does not necessarily mean that 12 plies are present, only that the tire has the strength of 12 standard plies.  (TII1)   (TII2)

PM: Preventive Maintenance  (FAA19)

PM-10: Particulate Matter of 10 Microns In Diameter Or Smaller  (BTS2)

PMS: Pavement Management System  (FHWA8)

PMS: Performance Management System  (OST2)

PMSA: Primary Metropolitan Statistical Area  (FHWA3)

PMT: Passenger - Miles Traveled  (DOE6)

PMT: Person - Miles of Travel  (FHWA3)

PNR: Passenger Name Record  (MTMC1)

PNW: Pacific Northwest Outport  (MTMC1)

POD: Port of Destination  (MARAD2)

POD: Port of Discharge  (MARAD2)

POE: Port of Embarkment  (MTMC1)

Point Detector: A circuit controller which is part of the switch operating mechanism and operated by a rod connected to a switch, derail or movable point frog to indicate that the point is within a specified distance of the stock rail.  (49CFR236)

Point Holding: A specified location, identified by visual or other means, in the vicinity of which the position of an aircraft in flight is maintained in accordance with air traffic control clearances.  (FAA4)

Point-Of-Rent: Area on a terminal facility which is assigned for the receipt of inbound cargo from the ship and from which inbound cargo may be delivered to the consignee, and that area which is assigned for the receipt of outbound cargo from shippers for vessel loading.  (MARAD1)

Pointway Channel: A cutoff channel which lies across the point of a bend and usually leads deep into another bend. (Conversely, "bendway channel").  (TNDOT1)

Poison Gas In Bulk: The transportation, as cargo, of any poison gas in any quantity.  (49CFR387)

POL: Port of Loading  (MARAD2)

Polar Track Structure: A system of organized routes between Iceland and Alaska which overlie Canadian airspace.  (FAA4)

Pole Trailer: A motor vehicle without motive power designed to be drawn by another motor vehicle and attached to the towing vehicle by means of a reach or pole, or by being boomed or otherwise secured to the towing vehicle, for transporting long or irregularly shaped loads such as poles, pipes, or structural members capable generally of sustaining themselves as beams between the supporting connections.  (49CFR390)   (49CFR571)

Pool: (See also Field Area) That area of a river impounded behind a dam. A pool may extend for many miles between one dam and the next.  (TNDOT1)

Pool Boat: A towboat with the pilothouse built on the forward end of the cabin rather than on top of the roof. So called because this type is used in areas where low bridges dictate low superstructure.  (TNDOT1)

Pool Line: Normal pool water line along the bank.  (TNDOT1)

Pool River: A river comprised of various pools or revels formed by dams and having generally a minimum of current, in contrast to open river where currents often become fierce.  (TNDOT1)

Pool Site: One or more spent fuel storage pools that has a single cask loading area. Each dry cask storage area is considered a separate site.  (DOE5)

Pool Stage: The stage of water that is maintained between two successive dams and is usually the minimum depth that can be maintained and yet have the project depth in the channel.  (TNDOT1)

Poor Condition Classification: Major repairs or modifications are required to make the facility operational or to prevent failure. Facility is only partially operational, and is not adequately serving the purpose for which it was constructed.  (DOI2)

POP: Performance-Oriented Packaging  (RSPA2)

Pop Rise: A fast rise (usually not a great one) in the river generally caused by a flash flood.  (TNDOT1)

POR: Preparation of Replacements for Oversea Movement  (MTMC1)

Port: See also Harbor.

Port: A harbor area in which are located marine terminal facilities for transferring cargo between ships and land transportation.  (MARAD1)

Port: 1) Harbor with piers or docks ; 2) left side of ship when facing forward ; 3) opening in a ship's side for handling freight.  (MARAD2)

Port Authority: An entity of state or local government that owns, operates, or otherwise provides wharf, dock and other marine terminal investments at ports.  (MARAD1)

Port Authority: Body established by law to have specified powers including the right to act with respect to a defined area of responsibility. Often used to apply to any quasi-autonomous or quasi-independent agency which has adequate authority over and effective management of a port.  (TNDOT1)

Port Marks: An identifying set of letters, numbers, and/or geometric symbols followed by the name of the port of destination, placed on export shipments. Foreign government requirements may be exceedingly strict in the matter of port marks.  (TNDOT1)

Port of Call: Port where a ship discharges or receives traffic.  (MARAD2)

Port of Entry: A port at which foreign goods are admitted into the receiving country.  (TNDOT1)

Port Tariff: A set of rules and regulations governing a port along with the published fees and charges for using a port's facilities.  (TNDOT1)

Portable Tank: A bulk packaging (except a cylinder having a water capacity of 1000 pounds or less) designed primarily to be loaded onto, or on, or temporarily attached to a transport vehicle or ship and equipped with skids, mountings, or accessories to facilitate handling of the tank by mechanical means. It does not include a cargo tank, tank car, multi-unit tank car tank, or trailer carrying 3AX, 3AAX, or 3T cylinders.  (49CFR171)

Portage: An overland passage connecting two bodies of water.  (TNDOT1)

POS: Port of Support  (MTMC1)

Position Report: A report over a known location as transmitted by an aircraft to Air Traffic Control (ATC).  (FAA4)

Position Symbol: A computer generated indication shown on a radar display to indicate the mode of tracking.  (FAA4)

Positive Control: 1) Control of all air traffic, within designated airspace, by air traffic control. 2) The separation of all air traffic within designated airspace by air traffic control.  (14CFR1)   (FAA4)

Possum: (See also Bumpers) Colloquial term for a portable fender or hand fender used to prevent damage to lock walls or vessels when mooring. Should always be used wet.  (TNDOT1)

Possum Belly: Livestock trailer with a drop frame to haul small animals (chickens, etc.) underneath heavy cattle.  (ATA1)

Post: An upright piece of timber or other material, in or adjacent to a body, used for mooring ships or supporting other structures.  (DOI3)

Post: A long, relatively slender and generally round piece of wood or other material.  (DOI4)

Pots: Flares placed on highway to warn traffic of an obstruction or hazard.  (ATA1)

Pour On the Coal: Step on the gas.  (ATA1)

POV: Privately Owned Vehicle  (GSA1)

Power Brake: Open throttle while applying brakes.  (ATA1)

Power Train: The group of components used to transmit engine power to the wheels. The power train includes the engine, clutch, transmission universal joints, drive shafts and rear axle gears.  (GSA2)

Power Units: The control and pulling vehicle for trailers or semitrailers.  (ATA2)

Power-Operated Switch: A switch operated by an electrically, hydraulically, or pneumatically driven switch-and-lock movement.  (49CFR236)

Power-Take-Off: A device usually mounted on the side of the transmission or transfer case, or off the front of the crankshaft, and used to transmit engine power to auxiliary equipment such as pumps, winches, etc.  (TII1)   (TII2)

Powered Axle: An axle equipped with a traction device.  (49CFR229)

PPI: Producers Price Index  (BTS2)

PPMV: Parts Per Million Volumes  (BTS2)

PPP: Purchasing Power Parities  (BTS2)

PPTMR: Personal Property Traffic Management Regulation  (MTMC1)

PPTTG: Personal Property Transit Time Guide  (MTMC1)

Prearranged Coordination: A standardized procedure which permits an air traffic controller to enter the airspace assigned to another air traffic controller without verbal coordination. The procedures are defined in a facility directive which ensures standard separation between aircraft.  (FAA4)

Precision Approach Procedure: A standard instrument approach procedure in which an electronic glide slope is provided, such as Instrument Landing System (ILS) and Precision Approach Radar (PAR).  (14CFR1)   (FAA4)

Precision Approach Radar (PAR): (See also Airport Surveillance Radar, Ground Controlled Approach) Radar equipment in some Air Traffic Control (ATC) facilities operated by the Federal Aviation Administration (FAA) and/or the military services at joint-use civil/military locations and separate military installations to detect and display azimuth, elevation, and range of aircraft on the final approach course to a runway. This equipment may be used to monitor certain nonradar approaches, but is primarily used to conduct a precision instrument approach wherein the controller issues guidance instructions to the pilot based on the aircraft's position in relation to the final approach course (azimuth), the glide path (elevation), and the distance (range) from the touchdown point on the runway as displayed on the radar scope.  (FAA4)

Precision Instrument Runway: A runway with an existing or planned precision instrument approach procedure.  (FAA12)

Precision Runway Monitor: Provides air traffic controllers with high precision secondary surveillance data for aircraft on final approach to closely spaced parallel runways. High resolution color monitoring displays are required to present surveillance track data to controllers along with detailed maps depicting approaches and no transgression zone.  (FAA4)

Preferential Assignment: An agreement whereby one company is given first choice in the use of a particular facility in the port. Also called "first call on berth privilege."  (TNDOT1)

Preferential Route: Preferential routes (Preferential departure route (PDR), preferential arrival route (PAR), and preferential departure arrival route (PDAR)) are adapted in Air Route Traffic Control Center (ARTCC) computers to accomplish inter/intrafacility controller coordination and to assure that flight data is posted at the proper control positions. Locations having a need for these specific inbound and outbound routes normally publish such routes in local facility bulletins, and their use by pilots minimizes flight plan route amendments. When the workload or traffic situation permits, controllers normally provide radar vectors or assign requested routes to minimize circuitous routing.  (FAA4)

Preferred Highway: See Preferred Route.

Preferred Instrument Flight Rules (IFR) Route: Routes established between busier airports to increase system efficiency and capacity. They normally extend through one or more Air Route Traffic Control Center (ARTCC) areas and are designed to achieve balanced traffic flows among high density terminals. Instrument Flight Rules (IFR) clearances are issued on the basis of these routes except when severe weather avoidance procedures or other factors dictate otherwise. Preferred IFR Routes are listed in the Airport/Facility Directory. If a flight is planned to or from an area having such routes but the departure or arrival point is not listed in the Directory, pilots may use that part of a Preferred IFR Route which is appropriate for the departure or arrival point that is listed. Preferred IFR Routes are correlated with standard instrument departures (SID) and standard terminal arrival routes (STAR) and may be defined by airways, jet routes, direct routes between NAVAID's, Waypoints, NAVAID radials/distance measuring equipment (DME), or any combinations thereof.  (FAA4)

Preferred Route: A highway for shipment of highway route controlled quantities of radioactive materials so designated by a State routing agency, and any Interstate System highway for which an alternative highway has not been designated by such State agency as provided by 49 CFR 177.826(b).  (49CFR171)

Premium Gasoline: (See also Gasoline) Gasoline having an antiknock index (R+M/2) greater than 90. Includes both leaded premium gasoline as well as unleaded premium gasoline.  (DOE5)

Premium Grade Gasoline: (See also Gasoline) A grade of unleaded gasoline with a high octane rating, (approximately 92) designed to minimize preignition or engine "knocking" by slowing combustion rates.  (DOE4)   (DOE5)

Premium Leaded Gasoline: (See also Gasoline) Gasoline having an antiknock index (R+M/2) greater than 90 and containing more than 0.05 grams of lead or 0.005 grams of phosphorus per gallon.  (DOE5)

Premium Unleaded Gasoline: (See also Fuel, Gasohol, Gasoline, Kerosene) Gasoline having an antiknock index (R+M/2) greater than 90 and containing not more than 0.05 grams of lead or 0.005 grams of phosphorus per gallon.  (DOE5)

Preventive Maintenance (PM): (See also Maintenance, Maintenance Control Center) The systematic servicing and inspection of motor vehicles on a predetermined time, mileage or engine-hour basis. The period varies with the type of equipment and the purpose for which it is assigned.  (GSA2)

Primary Railway: Tracks providing a direct route through an area.  (DOI3)

Primary Transportation: Conveyance of large shipments of petroleum raw materials and refined products usually by pipeline, barge, or ocean-going vessel. All crude oil transportation is primary, including the small amounts moved by truck. All refined product transportation by pipeline, barge, or ocean-going vessel is primary transportation.  (DOE5)

Primary Use: The use category in which an aircraft flew the most hours. The ten use categories are: aerial application, aerial observation, commuter air carrier, demand air taxi, business transportation, executive/corporate transportation, instructional flying, personal flying, other work, and other.  (FAA2)   (FAA9)

Principal Arterial: (See also Arterial Highway, Minor Arterial) Major streets or highways, many with multi-lane or freeway design, serving high-volume traffic corridor movements that connect major generators of travel.  (NHTSA3)

Principal Impact Point: The impact that is judged to have produced the greatest personal injury or property damage for a particular vehicle.  (NHTSA1)

Principal Place of Business: A single location designated by the motor carrier, normally its headquarters, where records required by 49 CFR 387, 390, 391, 395, and 396 will be maintained. Provisions in this subchapter are made for maintaining certain records at locations other than the principal place of business.  (49CFR390)

Priority U.S. Mail: Mail bearing postage for air transportation that goes by air on a priority basis at air mail service rates.  (BTS5)

Private Carrier: A commercial motor carrier whose highway transportation activities are incidental to, and in furtherance of, its primary business activity.  (FHWA4)

Private Entity: (See also Public Entity) Any entity other than a public entity.  (49CFR37)

Private Fleet Vehicle: Ideally, a vehicle could be classified as a member of a fleet if it is: 1) Operated in mass by a corporation or institution, 2) Operated under unified control, or 3) Used for non-personal activities. However, the definition of a fleet is not consistent throughout the fleet industry. Some companies make a distinction between cars that were bought in bulk: rather than singularly, or whether they are operated in bulk, as well as the minimum number of vehicles that constitute a fleet (i.e. 4 or 10).  (DOE6)

Private Label Merchandiser (PLM): Any person engaged in the business of selling or distributing, under his own trade name, boats or items of associated equipment manufactured by another.  (USCG1)

Private Motor Carrier (Of Passengers): A person who is engaged in an enterprise and provides transportation of passengers, by motor vehicle, that is within the scope of, and in the furtherance of that enterprise.  (49CFR390)

Private Motor Carrier (Of Property): A person who provides transportation of property by motor vehicle, and is not a for-hire motor carrier.  (49CFR390)

Private Pilot: A private pilot may not act as a pilot-in-command of aircraft that is carrying passengers for compensation or hire nor act as pilot-in-command in an aircraft that is being operated for compensation or hire (e. g.; one that has been hired to do pipeline patrol but carries no passengers).  (FAA2)

Private Road: Private road with restricted public use.  (DOI3)

Private Track or Siding: A track located outside of a carrier's right-of-way, yard, or terminals where the carrier does not own the rails, ties, roadbed, or right-of-way and includes track or portion of track which is devoted to the purpose of its user either by lease or written agreement, in which case the lease or written agreement is considered equivalent to ownership.  (49CFR171)

Private Transportation: 1) Any transport service that is restricted to certain people and is therefore not open to the public at large. 2) Owned or operated by an individual or group, not a governmental entity, for his or its own purposes or benefit.  (TRB1)

Private-Use Airport: An airport which is not open for the use of the general public.  (FAA2)

Privately Owned Airport: An airport which is owned by a private individual or corporation.  (FAA2)

Privately Owned Vehicle (POV): Employee's own vehicle used on official business for which the employee is reimbursed by the government on the basis of mileage.  (GSA1)

PRM: Precision Runway Monitor  (FAA4)   (FAA17)   (FAA7)

Pro Forma Invoice: An abbreviated invoice, sent in advance of the regular invoice for the customs clearance of the goods, the purpose being to acquaint the importer and/or government authorities of the importing country with the main details of a shipment to be made and showing reasonably close approximations of the actual weights, quantities, and values.  (TNDOT1)

Procedure Turn: The maneuver prescribed when it is necessary to reverse direction to establish an aircraft on the intermediate approach segment or final approach course. The outbound course, direction of turn, distance within which the turn must be completed, and minimum altitude are specified in the procedure. However, unless otherwise restricted, the point at which the turn may be commenced and the type and rate of turn are left to the discretion of the pilot.  (FAA4)

Process Fuel: All energy consumed in the acquisition, processing, and transportation of energy. Quantifiable process fuel includes three categories: natural gas lease and plant operations, natural gas pipeline operations, and oil refinery operations.  (DOE5)

Product: See also Cargo, Commodity, Freight, Goods.

Product Testing: Defect and compliance testing to be carried out under contract from G-NAB.  (USCG1)

Production Facility: Piping or equipment used in the production, extraction, recovery, lifting, stabilization, separation or treating of petroleum or carbon dioxide, or associated storage or measurement. To be a production facility under this definition, piping or equipment must be used in the process of extracting petroleum or carbon dioxide from the ground or from facilities where CO2 is produced, and preparing it for transportation by pipeline. This includes piping between treatment plants which extract carbon dioxide, and facilities utilized for the injection of carbon dioxide for recovery operations.  (49CFR195)

Productivity: A measure of efficiency of resource utilization; defined as the sum of the outputs divided by the sum of the inputs.  (MARAD1)

Profile Descent: An uninterrupted descent (except where level flight is required for speed adjustment; (e.g., 260 knots at 10,000 feet mean sea level) from cruising altitude/level to interception of a glide slope or to a minimum altitude specified for the initial or intermediate approach segment of a nonprecision instrument approach. The profile descent normally terminates at the approach gate or where the glide slope or other appropriate minimum altitude is intercepted.  (FAA4)

Programmable Indicator Data Processor (PIDP): A modification to the AN/TPX-42 interrogator system currently installed in fixed Radar Approach Controls (RAPCON). The Programmable Indicator Data Processor (PIDP) detects, tracks, and predicts secondary radar aircraft targets. These are displayed by means of computer-generated symbols and alphanumeric characters depicting flight identification, aircraft altitude, ground speed, and flight plan data. Although primary radar targets are not tracked, they are displayed coincident with the secondary radar targets as well as with the other symbols and alphanumerics. The system has the capability of interfacing with Air Route Traffic Control Centers (ARTCC).  (FAA4)

Progressive Taxi: Precise taxi instructions given to a pilot unfamiliar with the airport or issued in stages as the aircraft proceeds along the taxi route.  (FAA4)

Prohibited Area: Designated airspace within which the flight of aircraft is prohibited.  (FAA8)

Project: A locally sponsored, coordinated, and administered program, or any part thereof, to plan, finance, construct, maintain, or improve an intermodal passenger terminal, which may incorporate civic or cultural activities where feasible in an architecturally or historically distinctive railroad passenger terminal.  (49CFR256)

Project Cargo: Large shipments of varied cargo destined for one location and one specific project.  (TNDOT1)

Project Depth: The minimum depth of the river channel in a given area prescribed in the channel maintenance and construction program; normally 9 feet throughout the western rivers. Buoys are set in reference to project depth.  (TNDOT1)

PROMETHEUS: Program for European Traffic with Highest Efficiency and Unprecedented Safety  (FHWA15)

Promotion and Sales Expenses: Costs incurred in promoting the use of air transportation generally and creating a public preference for the services of particular air carriers. Includes the functions of selling, advertising and publicity, space reservations, and developing tariffs and flight schedules for publication.  (BTS4)

Propeller: A device for propelling an aircraft that has blades on an engine-driven shaft and that, when rotated, produces by its action on the air, a thrust approximately perpendicular to its plane of rotation. It includes control components normally supplied by its manufacturer, but does not include main and auxiliary rotors or rotating airfoils of engines.  (14CFR1)

Property Damage: Damage to or loss of use of tangible property.  (49CFR387)

Property Damage: The actual or estimated dollar value of vehicle, cargo, and other property damage incurred in motor vehicle accidents.  (FHWA2)   (FHWA4)

Property Damage Accident: An accident for which property damage of $4,400 or more, but no fatalities or injuries, was reported.  (FHWA2)   (FHWA4)

Property Damage Rate: The average amount of property damage per accident or per one hundred accidents.  (FHWA2)   (FHWA4)

Property Damage Threshold: The amount of property damage used to determine whether an accident not involving fatalities or injuries is reportable under the Federal Motor Carrier Safety Regulations (FMCSR). In 1994, the property damage threshold was $4,400.  (FHWA2)   (FHWA4)

Property Loss Prevented: Calculated estimate of the amount of property loss that would have occurred had the Coast Guard not rendered assistance. It is based upon value of property assisted in cases where severity of the incident was evaluated as severe or moderate in nature.  (USCG3)

Property-Damage-Only Crash: A police-reported crash involving a motor vehicle in transport on a trafficway in which no injuries of any severity, including fatal injuries, are reported.  (NHTSA3)   (NHTSA4)

Provisional Rate-Density Relationship: The relationship between fatality rates and average daily traffic. It is based on data for the 4-year period preceding the calendar year for which detailed data are reported. It is labelled "provisional" to make it clear that it is to be used as a guide rather than a standard. A provisional rate-density relationship may be described graphically or mathematically by a rate-density curve.  (FHWA1)

PRT: Personal Rapid Transit  (MOCD)

PSA: Pacific Southwest Airlines  (MTMC1)

PSI: Pounds Per Square Inch  (DOE3)

PSI: Present Serviceability Index  (FHWA8)

PSIA: Pressure Absolute  (AGA1)

PSR: Present Serviceability Rating  (FHWA8)

PSS: Port Safety and Security  (USCG5)

PSU: Primary Sampling Unit  (DOE4)   (NHTSA2)

PT: Passenger Traffic  (MTMC1)

PT: Procedure Turn  (FAA4)

PTE: Party To Exemption  (RSPA1)

PTMS: Public Transportation Facilities and Equipment Management System  (FHWA12)

PTO: Power-Take-Off  (TII2)   (TII1)

PTS: Practical Test Standards  (FAA7)

Public Aircraft: Aircraft used only in the service of a government, or a political subdivision. It does not include any government-owned aircraft engaged in carrying persons or property for commercial purposes.  (14CFR1)

Public Authority: Means a Federal, State, county, town or township, Indian tribe, municipal or other local government or instrumentality thereof, with authority to finance, build, operate, or maintain highway facilities, either as toll or toll- free highway facilities.  (23CFR460)

Public Crossing: A location open to public travel where railroad tracks intersect a roadway that is under the jurisdiction and maintenance of a public authority.  (FRA3)

Public Entity: (See also Private Entity) 1) Any state or local government; 2) Any department, agency, special purpose district, or other instrumentality of one or more state or local governments; and 3) The National Railroad Passenger Corporation (Amtrak) and any commuter authority.  (49CFR37)

Public Inland Waterways Transport (IWT) Enterprise: Inland Waterways Transport (IWT) enterprise which is principally owned (more than 50 per cent of the capital) by the State or public authorities and their enterprises.  (TNDOT1)

Public Liability: Liability for bodily injury or property damage and includes liability for environmental restoration.  (49CFR387)

Public Notice: (See also Notice to Mariners) The counterpart of Notice to Mariners promulgated by the Corps of Engineers. Also called "navigation bulletin".  (TNDOT1)

Public Road: Any road under the jurisdiction of and maintained by a public authority and open to public travel.  (23CFR470)   (FHWA2)   (FHWA6)

Public School Transportation: (See also School Bus) Transportation by school bus vehicles of school children, personnel, and equipment to and from a public elementary or secondary school and school-related activities.  (49CFR37)

Public Street and Highway Lighting: Includes electricity supplied and services rendered for the purpose of lighting streets, highways, parks, and other public places or for traffic or other signal system service, for municipalities or other divisions or agencies of state or Federal governments.  (DOE5)

Public Transit: Passenger transportation services, usually local in scope, that is available to any person who pays a prescribed fare. It operates on established schedules along designated routes or lines with specific stops and is designed to move relatively large numbers of people at one time.  (TRB1)

Public Transit Agencies: A public entity responsible for administering and managing transit activities and services. Public transit agencies can directly operate transit service or contract out for all or part of the total transit service provided.  (FTA1)

Public Transit System: An organization that provides transportation services owned, operated, or subsidized by any municipality, county, regional authority, state, or other governmental agency, including those operated or managed by a private management firm under contract to the government agency owner.  (APTA1)

Public Transportation: Transportation by bus, rail, or other conveyance, either publicly or privately owned, which provides to the public general or special service on a regular and continuing basis. Also known as "mass transportation", "mass transit" and "transit."  (APTA1)

Public Use Airport: An airport open to and for public use without prior permission, and without restrictions within the physical capacities of available facilities. May or may not be publicly owned.  (FAA2)

Public Use Class I Road: A principal road/rural parkway which constitute the main access route, circulatory tour, or thoroughfare for visitors.  (DOI1)

Public Use Class II Road: (See also Overlook Access) A connector road which provides access within an area of scenic, scientific, recreational or cultural interest, such as overlooks, campgrounds, etc.  (DOI1)

Public Use Class III Road: A special purpose road which provides circulation within public use areas, such as campgrounds, picnic areas, visitor center complexes, concessioner facilities, etc. These roads generally serve low-speed traffic and are often designed for one way circulation.  (DOI1)

Public Use Class IV Road: A primitive road.  (DOI1)

Public Use Road: All roads that are intended principally for the use of visitors for access into and within the public use area included. This includes all roads that provide vehicular passage for visitors, or access to such representative park areas as point of scenic or historic interest, campgrounds, picnic areas, lodge areas, etc. County, State, and U.S. numbered highways maintained by the National Park Service are included in this category for purposes of functional classification.  (DOI1)

Public Vessel: A vessel owned by and being used in the public service of the United States. It does not include a vessel owned by the United States and engaged in a trade or commercial service or a vessel under contract or charter to the United States.  (49CFR171)

Public Way: Any public street, road, boulevard, alley, lane, or highway, including those portions of any public place that have been designated for use by pedestrians, bicycles, and motor vehicles.  (TRB1)

Publicly Owned Airport: An airport which is publicly owned and under control of a public agency.  (FAA2)

Publico: Passenger vans or Class C motor buses operating with fixed routes but no fixed schedules. Publicos are privately owned and operated mass transit service which is market oriented and unsubsidized, but regulated through a public service commission, State or local government. Publicos are operated under franchise agreements, fares are regulated by route and there are special insurance requirements. Vehicle capacity varies from eight to thirty or more, and the vehicles may be owned or leased by the operator.  (FTA1)

Pull Down On: Channel report term used in crossings and meaning that when tow is well over, i.e., two-thirds of the way across, swing the vessel's head down on a new designated mark.  (TNDOT1)

Pull Down Shape of Bend: Channel report term meaning to steer into and around the shape of the bend at an easy distance off.  (TNDOT1)

Pull On Down: To change the vessel's course to a point further downstream.  (TNDOT1)

Pull the Pin: Release the fifth wheel lock.  (ATA1)

Pulpwood Trailer: A trailer that is designed exclusively for harvesting logs or pulpwood and constructed with a skeletal frame with no means for attachment of a solid bed, body, or container, and with an arrangement of air control lines and reservoirs designed to minimize damage in off-road operations.  (49CFR393)

Pump Out Facility: A holding place where ships' bilges and cargo are pumped.  (DOI4)

PUMS: Public-Use Microdata Sample (Census of Population and Housing)  (BTS7)

Punch: See Drive.

Pup: A short semitrailer used in combination with a dolly and another semitrailer to create a twin trailer.  (ATA1)

Purchase or Lease: With respect to vehicles, means the time at which an entity is legally obligated to obtain the vehicles, such as the time of contract execution.  (49CFR37)

Purchased Transportation: Transportation service purchased by a public agency from a public or private provider on the basis of a written contract.  (TRB1)

Push-Towed Tanker Barge: Pushed-towed barge for the bulk transport of liquids or gases.  (TNDOT1)

Pushed Barge Inland Waterways Transport (IWT): Freight vessel which is designed to be pushed and does not have its own means of mechanical propulsion.  (TNDOT1)

Pushed Tanker Barge: Pushed barge for the bulk transport of liquids or gases.  (TNDOT1)

Pushed-Towed Barge Inland Waterways Transport (IWT): Freight vessel which is designed to be either pushed or towed and does not have its own means of mechanical propulsion.  (TNDOT1)

Pusher Tug: Powered vessel developing not less than 37 kilowatt (KW) and designed or fitted for the towing of dumb barges, pushed-towed barges, or rafts,and for the pushing of pushed and pushed-towed barges, but not for the carriage of goods.  (TNDOT1)

Pusher Vessel: Powered vessel developing not less than 37 KW and designed or fitted for the pushing or pushed or pushed-towed barges but not for the carriage of goods.  (TNDOT1)

Put On the Air: Apply the brakes.  (ATA1)

Put On the Iron: Put on tire chains.  (ATA1)

PVD: Planned View Display  (FAA7)

PVD: Theodore Francis Green State Airport  (FAA11)

PVR: Portable Vehicular Ramp  (MTMC1)

PWM: Portland International Jetport  (FAA11)