The Texas Department of Transportation (TXDOT) has come up with a map of the 100 most congested roadway segments in Texas. Not surprisingly, the majority are in the Dallas/Fort Worth and the Houston areas. Those of us who drive in these cities every day won’t find much new here, but for people who only occasionally need to drive through Houston, for example, this map might be helpful in showing you which roads to avoid. You have to zoom in to the map to get the full benefit.