17. Houston, Texas
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Congestion level: 24%Average commute time: 26.8 minutes% of commuters using public transit: 4.0%% of commuters who walk to work: 2.1%
Houston’s METRO has low regular ridership. Alternatively, most commuters drive to and from work in this urban area. But Houston’s rapid population growth has local officials planning for substantial expansions to commuter bus service.