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Freight and Multimodal Operations Office

Freight and Multimodal Operations Office / Publications / Safety and Enforcement Studies

Four Quadrant Gate Timing Analysis 

Picture of a Train

A Recommended Procedure for Timing Design at Highway-Railroad Grade Crossings with Four-Quadrant Gates


Study Background and Purpose

This report summarizes an analysis tool that can be used by traffic professionals when reviewing new four-quadrant gate installations in Florida. By reviewing a wide range of scenarios, the new methodology aims to reduce the possibility of trapping a vehicle in the crossing zone between gates through effective timing delays as the gates are lowered.



Project Calculations