Effective Treatments of Over and Undercrossings for Use by Bicyclists, Pedestrians, and the Handicapped
Source: Federal Highway Administration
The study was designed to accomplish three basic objectives:
- Determine the feasibility of new and retrofit design modifications of over and undercrossings for use by non-motorized travelers
- Develop warrants for new and retrofit design modifications of crossings for these three user groups
- Develop design strategies for the accomodation of these three user groups on new and retrofit crossings
This report includes a review of the state of the art; a discussio of facility needs assessment procedures, including warrants and design selection criteria; the results of field evaluations of various over- and undercrossing facilities conducted by a team of engineers and a panel made up of members with various types of physical disabilities; and recommended design treatments. Also, features for non-structural solutions and innovative or less traditional treatments, as well as prototypical design strategies for both new and retrofit facilities, and examples of desirable and undesirable design practices are given.
