IH-820 Alternatives Analysis, Fort Worth, Texas

The Fort Worth District of the Texas Department of Transportation (TxDOT) initiated an Alternatives Analysis (AA) study of the six-mile IH-820 corridor from Meadowbrook Drive to IH-20, and the 2.5-mile IH-20 corridor between IH-820 and US-287, in the cities of Fort Worth, Arlington, Kennedale, and Forest Hill. The study determined the long- and short-term transportation needs of the corridor.

DeShazo, Tang & Associates, Inc. (DT&A) performed the freeway capacity analysis for this project. DT&A modified the TxDOT future traffic volumes based upon the preliminary future geometric layout of IH-820. Freeway capacity analysis was then performed for all mainlane segments, weaving areas, and ramps. DT&A determined the level-of-service (LOS) for the preliminary geometric configurations and, in order to achieve acceptable LOS in all areas, made recommendations to modify the number of mainlanes, ramp configurations, and the length of weaving segments. DT&A also conducted LOS analysis for all interchanges in the study area and recommended the number of turning lanes needed to achieve acceptable LOS for all movements.