Alternatives for Providing a Safe Passage for Non-motorized Traffic across an Existing Highway Bridge.

摘要

Non-motorized transportation increases mobility choices, relieves congestion, promotes local economy, reduces greenhouse gas emission, promotes a healthy lifestyle, and improves quality of life. Recently, there is an emphasis on developing integrated transportation systems with off-road shared use paths and on-road facilities. A majority of highway bridges that are located on the planned or existing non-motorized paths have become bottle-necks for non-motorized traffic. Therefore, there is a need to evaluate the bridges on non-motorized paths to identify safe passage alternatives to non-motorized traffic. The owner agencies need to have access to a methodological process to evaluate a site for the best possible alternatives and develop accurate cost estimates for funding proposals. This report presents case studies, safe passage alternatives for non-motorized traffic across an existing bridge, alternative analysis methodology, analysis process, and a software platform developed to automate the analysis process. Finally, a few examples are presented to demonstrate implementation of the alternative analysis methodology