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Caltrain is committed to supporting sustainability in the San Francisco Bay Area. Caltrain promotes sustainability by providing affordable, accessible, environmentally beneficial mobility options to help people get to where they live, work and play. Its Sustainability Program monitors the agency’s operational impacts on communities and the environment, and finds ways to lessen those impacts. Caltrain also encourages environmental stewardship by its employees, customers and partners.

Sustainability Benefits of Riding Public Transit

Caltrain riders promote sustainability in many ways that benefit the community. By:

  • Reducing greenhouse gas emissions and climate change impacts: use this Carbon Savings Calculator to estimate how transit can reduce your carbon footprint.
  • Decreasing fossil fuel consumption
  • Saving money[1]: use Caltrain’s Commute Calculator to estimate how much money customers save by taking Caltrain instead of driving
  • Mitigating traffic congestion
  • Improving regional air quality

[1]An average 20-mile trip by car can cost $10-15 (AAA 2014 “Your Driving Costs”)


APTA-Sustainability-Silver-Recognition-logo


Sustainability Program Framework


Sustainability is a key component of Caltrain’s vision and Strategic Plan. The San Mateo County Transit District’s Sustainability Policy summarizes Caltrain’s commitment to integrating sustainability into standard operating procedures and long-term decision-making.

Caltrain is a strong supporter of the American Public Transportation Association’s Sustainability Program and participates in the annual Sustainability & Public Transportation Workshop as well as APTA’s Sustainability committees. In 2010, the District became a founding signatory to the APTA Sustainability Commitment. Caltrain holds the Silver Level APTA Sustainability Commitment certification.



Sustainability Reports


2019 Sustainability Report
Caltrain’s second sustainability report includes data from 2017 and 2018. Key achievements during the reporting years include:

  • Net GHG emissions reduced by 44%
  • Facility emissions down 71%
  • Reduced both its diesel consumption and Criteria Air Pollution generation by 7%, even while ridership increased


To read the report, click HERE
To read the executive summary, click HERE

2017 Caltrain Sustainability Report
In August 2017, Caltrain published its first Sustainability Report, which summarizes key environmental sustainability achievements and trends for Caltrain operations in FY2010 through FY2016. Key achievements include:

  • Ridership increased by 73% over the past 7 years
  • In response to California’s historic drought, Caltrain implemented several water-saving conservation measures, and decreased water consumption by more than 33% between FY2010 and FY2016
  • Caltrain’s net GHG emissions declined by 22,474 metric tons of CO2e in FY2016 compared to FY2010. This reduction is equivalent to removing 4,747 vehicles from the road

To read the report click HERE (7.24 MB, PDF)



Sustainability in Action

View examples of Caltrain’s commitment to sustainabilityView examples of Caltrain’s commitment to sustainability in operating and maintenance programs, capital projects, long-term planning and everyday business practices.



Board Presentations

June 2019- Findings & Award of Energy Service Contract for Energy-efficient Lighting Retrofit at Caltrain Stations

November 2018- Update on Community Choice Energy Cost for Caltrain Electricity Service

February 2017 - Update on Community Choice Energy and Caltrain Electricity Service

May 2016 - Community Choice Energy and Caltrain Electricity Service

February 2016 - Caltrain Water Consumption and Conservation

March 2015 - Caltrain Sustainability Program