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A
AADT Annual average daily traffic
AAR Association of American Railroads
AASHTO American Association of State Highway and Transportation Officials
AC Asphaltic concrete
ACEC Area of critical environmental concern
ACFC Asphaltic concrete finishing course
ACHP Advisory Council on Historic Preservation
ADA Americans with Disabilities Act
ADOT Arizona Department of Transportation
ADPS Arizona Department of Public Safety
ADT Average daily traffic
ANSI American National Standards Institute
AREA American Railway Engineering Association
AREMA American Railway Engineering and Maintenance-of-Way Association
ARS Arizona Revised Statues
ASLD Arizona State Land Department
ASTM American Society for Testing and Materials
ATC Automatic Train Control
ATQI Arizona Transportation Quality Initiative
ATRC Arizona Transportation Research Center
AVE Arithmetic mean
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B

BDRY Boundary
BIA Bureau of Indian Affairs
BLM Bureau of Land Management of the U.S. Department of the Interior
BLVD Boulevard
BMP Best management practice
BNSF Burlington Northern Santa Fe Railroad
Board Surface Transportation Board
BOD Biological oxygen demand
BR Bridge
Btu British thermal unit(s)
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C

C Celsius
CAA Clean Air Act of 1970
CAAA Clean Air Act Amendments of 1990
CANAMEX The CANAMEX Trade Corridor was defined by Congress in the 1995 National Highway Systems Designation Act. For several years there has been an interest in developing this Corridor, chiefly to facilitate transportation distribution, commerce and tourism. In Arizona, the Corridor follows I-19 from Nogales to Tucson, I-10 from Tucson to Phoenix, US 93 in the vicinity of Phoenix to the Nevada Border.
CBC Concrete box culvert
CEQ Council on Environmental Quality
CERCLA Comprehensive Environmental Response, Compensation and Liability Act
CERCLIS Comprehensive Environmental Response, Compensation, and Liability Information System
CFR Code of Federal Regulations
CG Cattle guard
CL City limits
CN Canadian National Railroad
CN/IC Canadian National/Illinois Central (Railroads)
CO Carbon monoxide
CO2 Carbon dioxide
CS Commercial standards
CS Cab Signal
CSX Primary Freight Railroad Owner of the main lines included in the Southeast Corridor as defined in this web site
CTY City
CWA Clean Water Act
CY Calendar year
CYN Canyon
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D

dB decibel(s)
dBA A-weighted decibel(s)
DCR Design Concept Report
DE District engineer
DME District materials engineer
DMU Diesel Multiple-Unit
DOE (U.S.) Department of Energy
DOI (U.S.) Department of the Interior
DOT (U.S.) Department of Transportation
DR Drain
DVUR Daily Vehicle Usage Report
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E

EA Environmental Assessment
EB Eastbound
ECP Environmental clearance process
EIC Employee in charge (of on-track safety)
EIS Environmental Impact Statement
EPA (U.S.) Environmental Protection Agency
EPCA Energy Policy and Conservation Act
ERS Environmental resource score
ESA Endangered Species Act of 1973
EX Excavation
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F

F Fahrenheit
FAPG Federal-Aid Policy Guide
FC Finishing course
FHWA Federal Highway Administration
FMS Freeway Management System
FOIA Freedom of Information Act
FR Frontage road
FRA Federal Railroad Administration
FTA Federal Transit Administration
FWS (U.S.) Fish and Wildlife Service
FY Fiscal year (ADOT FY: July 1 - June 30)
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G

GC Grade
GIS Geographic information system
GOHS Governor's Office of Highway Safety
GPS Global positioning system
GR Guardrail
GRIC Gila River Indian Community
GRIN Gila River Indian News
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H

HOV High occupancy vehicle (also known as the "Diamond Lane" or "Carpool Lane" on the freeway).
hp Horsepower
HPMS Highway Performance Monitoring System
HSO Health and safety officer
HSP Health and safety plan
HURF Highway User Revenue Fund
HWY Highway
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I

I Interstate (for example: I-10)
ICC Interstate Commerce Commission
IR Inconsistent and responsive application
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J

JCT Junction
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K

kg Kilogram(s)
kW Kilowatt(s)
kWh Kilowatt-hour(s)
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L

Ldn Day-night equivalent sound level
Leq(h) Hourly energy-averaged sound level
LK Lake
LL Lower limit (in reference to Standard Specifications for Road and Bridge Construction).
LLC Limited liability company
LN Line
LOS Level of service
LT Lighting
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M

MAG Maricopa Association of Governments
MGT Management
MOA Memorandum/memoranda of agreement
MOU Memorandum/memoranda of understanding
MP Milepost
mph Mile(s) per hour
MRS Multiple resource score
MT Mountain
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N

N/A Not applicable
NAAQS National Ambient Air Quality Standards
NBS National Bureau of Standards
NCHRP National Cooperative Highway Research Program
NEPA National Environmental Policy Act of 1969
NHI National Highway Institute
NHL National historic landmark
NHPA National Historic Preservation Act of 1966, as amended
NHTSA National Highway Traffic Safety Administration
NOAA National Oceanographic and Atmospheric Administration
NOx Nitrogen oxide; oxides of nitrogen
NPDES National Pollutant Discharge Elimination System
NPL National Priorities List
NPR No permit required
NPS National Park Service
NRHP National Register of Historic Places
NSPE National Society of Professional Engineers
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O

O3 Ozone
O M Operations and maintenance
OP Overpass
OSHA Occupational Safety and Health Administration
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P

PA Project assessment
PCCP Portland Cement, Concrete Pavement
PE Professional engineer
PH Phase
PL Percentage of lot within LL (in reference to Standard Specifications for Road and Bridge Construction).
P.L. Public law
PM Particulate matter
PM10 Particulate matter less than 10 microns in diameter
POR Party of record
PPE Personal protective equipment (for roadway worker safety)
PSD Prevention of significant deterioration
PT Total percentage of lot within UL and LL (in reference to Standard Specifications for Road and Bridge Construction).
PU Percentage of lot within UL (in reference to Standard Specifications for Road and Bridge Construction).
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Q

QA Quality assurance
QC Quality control
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R

RACF Resource Access Control Facility
RARF Regional Area Road Fund (a voter-approved excise tax primarily used for controlled access highway construction in the metropolitan areas).
RCRA Resource Conservation and Recovery Act
RCRIS Resource Conservation and Recovery Information System
RES Reservation
RLS Registered land surveyor
RMM Railway maintenance machine
RMP Ramp
RNG Range
RR Railroad
RRX Railroad crossing
R/W Right-of-way
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S

SACP Safety Assurance and Compliance Program (of the Federal Railroad Administration)
SC Seal coat
SEA Section of environmental analysis (of the Surface Transportation Board)
SGN Sign(s)
SHPO State Historic Preservation Office
S/L Signal lights (traffic lights).
SO2 Sulfur dioxide
SOP Standard operating procedure
SR State route
ST PARK State park
Stat. Statute
STR Structure
SWLK Sidewalk
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T

T E Threatened and endangered species, as determined by the Endangered Species Act of 1973
TCD Traffic control device
TCS Traffic counting station
TEA-21 Transportation Equity Act for the 21st Century
TI Traffic interchange
TV Target value (in reference to Standard Specifications for Road and Bridge Construction).
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U

UL Upper limit (in reference to Standard Specifications for Road and Bridge Construction).
UP Underpass
U.S. United States
U.S.C. United States Code
USDOT United States Department of Transportation
USGS United States Geological Survey
USS United States Standard
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V

VLY Valley
VMT Vehicle miles traveled
VRE Virginia Railway Express
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W

WB Westbound
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The SEC website is a proof-of-concept program to promote collaboration between industry and government organizations regarding railroad operations along the Southeast Corridor. The content currently posted is under review by program participants and does not reflect official positions or policy of the Federal Railroad Administration or participating organizations.