The biggest contributor to the congestion that is common in the subject interchange is the “weaving” of traffic. There are also capacity issues related to the population and traffic growth in the south Arlington and Mansfield areas. Examples of the weaving problem are the northbound US 287 traffic to westbound IH 20 weaving with the westbound IH 20 traffic to northbound IH 820/US 287, and the southbound IH 820/US 287 traffic to southbound US 287 weaving with the lane changing eastbound IH 20 traffic.
The Texas Department of Transportation (TxDOT) and the Federal Highway Administration (FHWA) have completed a Major Investment study for IH 820 and IH 20 in southeast Tarrant County, Texas.
The purpose and need for this project was determined early in the process and stemmed from three major factors: 1) anticipated local and regional population and employment growth within the IH 820 corridor and the Dallas/Fort Worth Metroplex; 2) the demand for additional transportation capacity within the IH 820 corridor as a result of increased population and employment; and 3) design deficiencies throughout the existing corridor facilities that contribute to congestion and a high frequency of traffic accidents.
This 2005 Report documents proposed changes in access to the IH 820 and IH 20 facilities. It also provides the background information for the FHWA determination to ensure that the proposed project will not have a significant impact on Interstate highway safety or mobility. This report follows the policy guidance set forth in the Federal Register on February 11, 1998, under the title “Notice of Policy Statement.”