Information on this site is disseminated under the sponsorship of the U.S. Department of Transportation and Texas Department of Transportation as documentation for a study commissioned by the Houston-Galveston Area Council in the interest of information exchange. Neither the United States Government, the State of Texas, nor the Houston-Galveston Area Council assume liability for its contents or use thereof. The authors are researchers at the Texas A&M Transportation Institute, part of The Texas A&M University System, and as such are solely responsible for the accuracy thereof.

Study Sponsors