Purpose
To provide general guidance for developing and implementing a management approach to highway safety. This safety approach will focus on four major areas:
- identify, investigate, set priorities, and correct hazardous or potentially hazardous roadway locations and features;
- ensure early consideration of safety improvements in all highway projects;
- maintain and upgrade safety hardware, highway elements and operational features; and
- identify safety needs of special user groups such as commercial motor vehicles, older drivers, pedestrians, bicycles, motorcycles and small passenger vehicles in the planning, design, construction and operation of the highway system.
Background
A comprehensive and coordinated highway management system could serve to improve the decisions made by highway agency managers. A management approach to highway safety will serve to eliminate or reduce existing and potential highway hazards and to reduce the number and severity of accidents on all roads where such a system is applied. The term Safety Management System (SMS), as used herein, refers to a management approach to highway safety.
The SMS is not intended as a new or separate system but as an integral part of a comprehensive and coordinated highway management system.
The Transportation Research Board conducted a conference in early November 1981 on the subject of "Enhancing Highway Safety through Engineering Management in an Age of Limited Resources." The conference recommendations were later developed into an AASHTO guide titled "A Guide For Enhancement of Highway Safety Directed to Agencies, Programs and Standards." Recommendations from this guide provided a basis for the management approach to highway safety.
Scope
The management approach to highway safety is designed to assure that safety aspects of highway decisions are timely and appropriate. This approach could serve both State and local highway agencies as a model for developing an SMS. Consideration should be given to the safety needs of small passenger cars, pedestrians, bicycles, motorcycles, older drivers, rail-highway crossings, commercial motor vehicles and work zone traffic control.
Key Elements
There are numerous elements to aid decision making at various management levels. A management approach to highway safety includes eight key elements to ensure processes and programs of all four major areas identified in paragraph I are effectively coordinated and carried out.
Goals
Long- and short-term highway safety goals establish a means for resource allocation. Implementation of these goals is accomplished through a long-range program or "highway plan." This plan can be tailored to address both existing and anticipated problem locations as well as substandard highway designs and features.
Emphasis is placed on specific goals which address safety problems identified at the statewide and national levels, such as commercial motor vehicles, older drivers, and high accident corridors. To improve the plan, specific and measurable activities should be evaluated and compared with established goals. Goals should be established early and be reflected in the budget process.
-
Accountability. Accountability is an essential management tool for tracking implementation of highway plans and comparing progress with established goals.
This is accomplished by defining the safety responsibilities in sufficient detail to identify the responsible unit or individual. Written and widely distributed responsibilities facilitate appropriate coordination.
-
Training. Personnel with knowledge, skills and abilities (KSAs) to carry out identified responsibilities are essential. To assure availability of personnel with desired KSAs, it is likely that a training program will be necessary. An ongoing training program includes:
-
identification of KSAs required to carry out the safety responsibilities,
-
determination of current training needs,
-
assessment of future training needs, and
-
development and implementation of the necessary multi-disciplinary training activities to meet these needs.
It is equally important that personnel under contract to a highway agency have the essential KSAs identified for the tasks to be undertaken.
Cross training with other disciplines and agencies is needed to understand and appreciate the responsibilities and duties of others such as the State's safety agencies and commercial motor vehicle safety.
-
Monitoring and Evaluation. Design, operation, maintenance, and process reviews determine whether or not the safety processes and improvements are having the desired effects. These reviews identify the items on completed projects that should be modified on future designs and standards. Use of a multi-disciplinary team is encouraged to monitor and evaluate selected projects and processes. Monitoring and evaluation of selected projects within highway management functions will aid in identifying areas where management action would be beneficial.
-
Integrated Database. An analysis of timely and accurate data is necessary to identify safety problems and to select and implement effective accident countermeasures.
These analyses should include both continuing and emerging problems requiring management attention and resource allocation. Data files such as accidents, roadway, roadside, traffic control devices, traffic volumes, vehicles, and drivers can be linked for comprehensive analyses. Collection and use of property damage only accident data are desirable to provide the information needed to better support decisions.
-
Safety Analysis. Safety analyses include accident and operational investigations. These analyses and comparisons of existing conditions and current standards can be used to assess highway safety needs, set priorities, and select accident countermeasures. The selection of accident countermeasures should be based on a comprehensive problem analysis including roadway, driver, and vehicle.
-
Coordination. Infra- and inter-agency coordination will enhance the implementation and management of a comprehensive highway plan. Multi-disciplinary contributions to safety management will be enhanced through comprehensive coordination. This coordination will be encouraged by identifying highway safety related responsibilities of other agencies. Interagency coordination includes the sharing of information critical to important safety decisions. This coordination should include direct communication with the State's safety agencies.
-
Technology and Information Exchange. Highway safety is an evolving field with new ideas being introduced on a continuing basis. Proactive research and technology and information exchange provide many opportunities for addressing changes and improving safety. A method to disseminate and monitor information, and incorporate effective results is a critical part of highway safety management. Research problems in safety should be sensitive to the changing needs and abilities of the highway users, particularly the unique needs of users such as commercial vehicle drivers, older drivers, pedestrians, bicyclists and motorcyclist.