The following pages are the forms used by Texas DOT for preemption calculation procedures.
Figure E-1. Texas DOT–Guide for Determining Time Requirements for Traffic Signal Preemption at Highway-Rail Grade Crossings
Please visit this website to download a PDF file of Texas Department of Transportation–Guide for determining time requirements for traffic signal preemption at highway-rail grade crossings:
http://www.txdot.gov/txdoteforms/GetForm?formName=/2304.pdf&appID=/TRF&status=/reportError.jsp&configFile=WFServletConfig.xml
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