Multilane Design Alternatives for Improving Suburban Highways

摘要

The objective of the research was to investigate and compare the safety, operational and cost characteristics of selected multilane design alternatives for improving suburban highways. The report presents quantitive estimates of the traffic operational and safety effectiveness of these alternatives and also considers less quantitive factors in assessing their relative merits. The safety analysis is based on accident data base assembled in the study for suburban highway sections in California and Michigan.