Transit and the ‘Big One’

Bay Area transit agencies employ rigorous protocols to ensure they’re prepared for the next major earthquake.

1 minute read

October 11, 2022, 11:00 AM PDT

By Diana Ionescu @aworkoffiction


Californians know they should always be ready for the next earthquake—and that includes the state’s transit systems. In the San Francisco Bay Area, when the Loma Prieta earthquake struck in 1989, the Bay Area Rapid Transit (BART) system persisted with minimal disruptions. Ricardo Cano of the San Francisco Chronicle explains how the system prepares for major earthquakes.

“BART’s earthquake early warning detection system alerts the system to pending quakes and automatically signals trains to slow down at higher seismic intensities,” Cano writes. “Following an earthquake, [BART spokesperson James Allison] said, BART trains will stop (except for trains in the Transbay Tube and Berkeley hills tunnel) until it is determined it is safe to move the train to the nearest station, where riders will get off. Trains in the tube or tunnel move to the nearest station and then hold.” Staff are also trained and retrained regularly to respond to various levels of intensity. 

San Francisco’s other major transit agency, Muni, and the ferry operator, San Francisco Bay Ferry, have similar processes in place. “Like BART, Muni personnel would assess damages and inspect the system’s infrastructure to determine how soon Muni service could continue. Motor buses would replace electric trolley buses and streetcars if an earthquake damaged the system’s power lines.” 

Thursday, October 6, 2022 in San Francisco Chronicle

portrait of professional woman

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban Planner

Get top-rated, practical training

Wastewater pouring out from a pipe.

Alabama: Trump Terminates Settlements for Black Communities Harmed By Raw Sewage

Trump deemed the landmark civil rights agreement “illegal DEI and environmental justice policy.”

April 13, 2025 - Inside Climate News

High-rise apartment buildings in Waikiki, Hawaii with steep green mountains in background.

Study: Maui’s Plan to Convert Vacation Rentals to Long-Term Housing Could Cause Nearly $1 Billion Economic Loss

The plan would reduce visitor accommodation by 25% resulting in 1,900 jobs lost.

April 6, 2025 - Honolulu Civil Beat

Blue and white Seattle Link light rail train exiting concrete Downtown Bellevue Tunnel in Bellevue, WA.

Why Should We Subsidize Public Transportation?

Many public transit agencies face financial stress due to rising costs, declining fare revenue, and declining subsidies. Transit advocates must provide a strong business case for increasing public transit funding.

April 7, 2025 - Todd Litman

Silhouette of man holding on to back of bicycle ridden by woman with Eiffel Tower in background.

Paris Bike Boom Leads to Steep Drop in Air Pollution

The French city’s air quality has improved dramatically in the past 20 years, coinciding with a growth in cycling.

April 14 - Momentum Magazine

Multifamily housing under construction.

Why Housing Costs More to Build in California Than in Texas

Hard costs like labor and materials combined with ‘soft’ costs such as permitting make building in the San Francisco Bay Area almost three times as costly as in Texas cities.

April 14 - San Francisco Chronicle

Western coyote looking at camera in grassy field.

San Diego County Sees a Rise in Urban Coyotes

San Diego County experiences a rise in urban coyotes, as sightings become prevalent throughout its urban neighbourhoods and surrounding areas.

April 14 - Fox 5