UC/ASU Study: CA High Speed Rail Brings Environmental Benefits

A new academic study has determined that California's beleaguered high speed rail project may meet at least one promise if fully built - it can bring the environmental improvements that supporters boasted when travelers ditch planes and cars for HSR.

2 minute read

August 1, 2012, 6:00 AM PDT

By Irvin Dawid


Meg McCabe reports on the new UC Berkeley/Arizona State University analysis of the environmental benefits that the public can expect if the now-initially funded high speed rail project is built and begins operation - which could be 20-30 years after next year's expected groundbreaking.

"UC Berkeley Professor Arpad Horvath and Arizona State University assistant professor Mikhail Chester authored the study, published (July 26) in the journal Environmental Research Letters, which evaluates the environmental and human-health impacts for the future of long-distance transportation."

"Even when you account for the life cycle effects, it's very likely that the development of the rail will help reduce greenhouse gas emissions," Chester said.

Sarah Yang, UC Media Relations, also reported on the just-released study.

"We're showing that if this high-speed rail system is deployed, it is likely that California will reduce its transportation environmental footprint," said Chester, who began this work as a UC Berkeley post-doctoral researcher. But to reap those environmental benefits, the state will have to wait until the system becomes fully operational, which could take an estimated 20-30 years after groundbreaking."

The authors write in the report's abstract:

"The environmental payback is most sensitive to the number of automobile trips shifted to high-speed rail, and for greenhouse gases is likely to occur in 20–30 years. A high-speed rail system that is deployed with state-of-the-art trains, electricity that has met renewable goals, and in a configuration that endorses high ridership will provide significant environmental benefits over existing modes."

Thanks to Reconnecting America

Friday, July 27, 2012 in The Daily Californian

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