A Texas U-turn, or Texas turnaround, boomerang, or loop around, is a lane allowing cars traveling on one side of a one-way frontage road to U-turn onto the opposite frontage road (typically crossing over or under a freeway or expressway). Typically controlled by yield signs, these allow U-turning traffic to bypass two traffic signals and avoid crossing the local traffic twice.
If the limited-access highway passes over the local road, the bridge (or bridges) must be longer, to span four directions of traffic and two sidewalks below. If the local road passes over the limited-access highway, the bridge must be wider, to carry four directions of traffic and two sidewalks over the highway.
This highway configuration originated (and is particularly common) in the U.S. state of Texas, especially in the El Paso, Austin, Dallas–Fort Worth, Houston, and San Antonio metropolitan areas, but can also be found in Atlanta, Georgia; Clearwater, Florida; Jacksonville, Florida; Jackson, Mississippi; Huntsville, Alabama; Lehi, Utah; North Little Rock, Arkansas; Las Cruces, New Mexico; Oklahoma City, Oklahoma; Cleveland, Ohio; Lancaster, Pennsylvania, Provo, Utah; St. Louis, Missouri; Kansas City, Missouri; Tulsa, Oklahoma; Wichita, Kansas; Peoria, Arizona;Chicago, Illinois; and New York City.