Road User Behavior

Providing bicyclists favorable and comfortable riding environments is an important objective for transportation professionals. This study investigated the factors that contribute to bicyclists' perception of comfort on physically separated bicycle paths and quantified their impacts. A survey was conducted on 29 physically separated bicycle paths in the metropolitan area of Nanjing, China. A factor analysis and an ordered probit model were used to analyze the data. The results showed that the mean perception of comfort was significantly different between age groups, but not...

This paper describes the design and preliminary evaluation of the criteria for alerting drivers to a specific set of intersection hazards. The research is being conducted as part of the development of an intersection decision support (IDS) system that uses the sensing and computational technologies of infrastructure-based intelligent transportation systems. The IDS system under consideration is intended to help drivers avoid conflicts with oncoming traffic when they are making left turns under a permissive (i.e., unprotected) green signal. These conflicts account for a significant...

Transit centers should offer well-designed guidance signs to help passengers find their way to desired destinations easily and quickly. The current design of guidance signs in large-scale transit centers in China, however, is based almost solely on interior and art design, with virtually no accounting for passengers’ wayfinding requirements. As a tentative effort to fill that need, this study presents a wayfinding-oriented design for guidance signs. The case of a large transit center in China is used to illustrate how wayfinding requirements can be incorporated into specific design. In...