Research Report
Cothron, A.S., S.E. Ranft, C.H. Walters, D.W. Fenno, and D. Lord
May-04
In Texas, high-occupancy vehicle (HOV) lanes have emerged as an integral part of the states current and future transportation system to aid urban mobility. As a result, the issue of HOV lane design and the influence of design on safety has become the focus of much attention in the transportation community. This document provides guidance for future design of freeways with HOV lanes based on an analysis of crash data from Dallas, Texas. This guidance indicates desirable corridor characteristics when considering HOV lane implementation and recommends roadway cross-sections when implementing HOV lanes similar to those in operation in Dallas, Texas.
Guidance for Future Design of Freeways with High-Occupancy Vehicle (HOV) Lanes Based on an Analysis
high-occupancy vehicle lanes
safety
crash data
barrier-separated lanes
buffer-separated lanes
concurrent flow lanes
contraflow lanes
HSIS Summary Reports are two to eight pages in length and include a brief description of the issue addressed, data used, methodology applied, significant results, and practical implications.
A variety of research studies have been performed using data from HSIS. Many of the final reports prepared are now available electronically.
Research reports are often summarized in executive summaries, technical briefs, or other abbreviated formats. Included here are those road safety summaries that involved research using HSIS data.
In addition to conducting research, HSIS resources are also used to develop products that can be used by practitioners in the analysis of safety problems.
HSIS data are sometimes used in research studies that result in other types of finished products, such as dissertations, theses, and conference proceedings.
