Ramp-Metering Design and Operations Guidelines for Texas (0-2121-2)

The primary objective of this project was to develop improved ramp metering design and implementation guidelines for use by Texas Department of Transportation (TxDOT). These guidelines will provide for more effective design and implementation of ramp-metering systems at existing as well as proposed freeway entrance ramps. This report contains the documentation of research conducted by TTI during a one-year project funded by TxDOT. It includes: a review of current ramp metering practice in the United States, a review of current ramp metering practice in Texas, a review of design criteria, and the development of ramp-design guidelines.