ACCIDENT SURROGATES FOR USE IN ANALYZING HIGHWAY SAFETY HAZARDS VOLUME II-TECHNICAL REPORT

The principal objective of this research project was to investigate the feasibility of using accident surrogate measures in highway safety analyses. An accident surrogate measure is defined as a quantifiable observation that can be used inplace of or as a supplement to accident records. The study provides evidence that surrogate measures for accident experience can be identified. A procedure for developing and using accident surrogates is presented. Analyses were performed to develop accident surrogate measures for hazardous location identification and countermeasures evaluation at rural isolated curves on two-lane roads, rural signalized intersections and two-lane tangent sections in urbanized areas. This report is the second in a series. The series is composed of: Volume I--Executive Summary; Volume II--Technical Report; and Volume III--Appendices A-G. (FHWA)