In-Service Performance Evaluation (ISPE) for G4 (1S) type of Strong-Post W-Beam Guardrail System and Cable Median Barrier: Volume 2.

摘要

This report presents a study to evaluate the safety performance of cable median barriers on limited access facilities in Florida. A companion report (i.e., Volume I) focuses on the performance of the G4 (1S) type of strong-post W-Beam guardrails in Florida. In the study, the performance of cable median barriers was evaluated based mainly on two types of analysis: (1) the percentages of barrier and median crossovers by site location, vehicle type, crash severity, and cable median barrier types; and (2) comparisons of median-related crash statistics before and after cable median barrier installations by crash severity and vehicle type.