Impact of Community Severance for Safety of Local Activities around a Multi-Lane Highway

摘要

In order to evaluate safety impacts for local areas suffered but not served by a multi-lane highway, the problem of community severance caused by a multi-lane highway with high speed and controlled access is researched. Conflicts between local traffic and highway traffic cause the problems of safety and mobility. A comprehensive assessment method is implemented to value the impact for local trips' safety caused by community severance. The negative benefits brought by detouring distance, traffic volume, width of cross-section, and speed of highway are measured as quantitative or categorical variable, in order to evaluate safety impact of access-management perspectives. The aim of the research is to remind designers, planners or decision-makers of highways to consider the community severance problems for local trips.