Author:  Fred Coleman III, Young J. Moon

Sponsoring Agency:  U.S. Department of Transportation - Federal Highway Administration, Illinois Department of Transportation

Date of Publication:  1999 (?)

Abstract:

A design methodology for gate delay and gate interval time for at-grade crossings using four-quadrant gates is developed. The design approach is based on the concept of dilemma zones related to signal change intervals at signalized intersections. The design approach is validated based on data from six sites in Illinois on a proposed high-speed rail corridor. Gate delay and gate interval times are determined that provide an optimal safe decision point to allow a driver to stop before the crossing or to proceed through the crossing without becoming trapped by the exit gates.
 

No. of Pages:  8