Houston ranks No. 11 in traffic-clogged U.S. cities

​​HOUSTON – A new report by TomTom says two West Coast cities have the country’s worst traffic-clogged commutes, but booming metro areas in the South, including Houston, have plenty of traffic misery of their own.

The TomTom Traffic Index 2016 says Houston is ranked No. 11, the highest-ranking of any Texas city.

Austin just missed the top 20, coming in at No. 21. Meanwhile, San Antonio is No. 32 and Dallas-Fort Worth is No. 34. 

Worldwide, Houston ranks No. 93, and the other Texas metros don’t even crack the top 100.

The TomTom Traffic Index measures congestion on the road networks of 295 cities around the world. 

The company says it has built a database with 14 trillion historical travel time measurements that provide detailed and accurate traffic updates for drivers in 50 countries.

Houstonians are used to ranking among the worst cities for traffic. Most recently, the Inrix 2015 TrafficScorecard ranked Houston’s traffic the fourth-worst in the country.