Because the traffic conditions in Texas are subject to change as constant repairs and construction improve or temporarily delay them, it's important to know where to go for the most current information. The Texas Department of Transportation's website provides a detailed outlook on the road conditions in all the major areas; inclement weather, traffic flow, construction and roadmaps can all be found there. HighwayConditions.com also offers good information on Texas' current traffic conditions.
Texas contains a number of major highways that run through the state or connect its major cities. Highway 10 runs through Houston, San Antonio and El Paso, connecting the southern region of the state. Highway 20 runs from Louisiana through Dallas/Fort Worth and connects to Highway 10 just east of El Paso. Highway 35 runs north to south, connecting Dallas with Austin and San Antonio. Highway 45 connects Houston and Dallas.
The U.S. Department of Transportation identifies Dallas, San Antonio, Austin and Houston as the major sources of traffic congestion in Texas. Houston, which receives a lot of traffic from I-10, is a major source of bottlenecks, and San Antonio is only slightly better. Austin is the worst, in light of its relative size, and has numerous traffic delays and congestion. Dallas and Fort Worth area also have numerous traffic problems as a result of being at the intersection of Highway 20, Highway 30, Highway 35 and other minor highways.
Texas traffic conditions are varied in certain smaller cities and towns. Places such as Corpus Christi, Brownesville, Laredo, Texarkana and Lubbock are known to have particularly bad traffic as a result of the fact that their highway traffic exceeds capacity. It's never best to assume that because fewer people live in the area, the traffic conditions will be better than those found in larger cities.