Across all modes, the average Bay Area commute takes longer than ever before and now lasts over 31 minutes door-to-door. Increasing congestion and longer-distance commutes to job centers in San Francisco and Silicon Valley have contributed to this trend. Importantly, modal choice affects commute duration. Commuters choosing to drive alone spend 28 minutes getting to work, while those choosing public transit log an average commute time nearly twice as long at 51 minutes.
The longer transit commute times are not surprising considering nearly two-thirds of transit commuters work in San Francisco. Given congestion in San Francisco and its related impacts on Muni, plus long-distance commutes on BART, Caltrain and express buses from other counties, it is difficult for these commuters to get to work in 30 minutes or less. This results in above-average travel times for public transit users.