Development of Secondary Highway Accident Countermeasures through Induced Exposure Analysis with Census Information (Phase 2 of Accidents of Secondary Highways and Counter-measures).

摘要

The majority of roadway mileage in the US consists of two-lane, two-way roads that carry low volumes. The nationwide crash reports however indicate that these roadways have significantly higher crash rates than other roads. Based on 1992 data, secondary roads had 188 crashes per million vehicle-miles which is almost twice the crash rate (99 crashes per million vehicle-miles) of all roads (1). The fact that crash rates are higher in the southeast, when compared to the national average rate, combined with the large mileage of low volume roads prompted this research. The main objective of this second phase of the study is to define at-risk groups according to personal, socioeconomic and roadway characteristics and identify potential counter-measures that could enhance the road safety of these groups. The identification of these groups at risk will provide state and federal agencies with a set of possible countermeasures that can be implemented to reduce the crash rates on secondary roads.