 Pre-Signals
Pre-Signals are traffic signals in advance of the highway rail grade crossings. This article from the ITE Journal, "Use of Pre-Signals in Advance of a Highway Rail Grade Crossing: A Specialized Tool with Specific Applications", provides a great description of pre-signal use in the United States.
Hazard Index Calculations
The Federal Railroad Administration provides an online application for determining the hazard index of an at-grade crossing. Follow the link below to use the application.
Sample Diagnostic Team Evaluation Reports
Diagnostic Team Evaluations of grade crossings are an important part of evaluating the safety of at-grade crossings. Here is a link to the State of Nevada Department of Transportation Diagnostic Review Form.
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