Mobility: Reduced Car Dependency

 

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Why is this a Climate Smart indicator? 

  • Transportation generates over half of city-wide greenhouse gas emissions, according to the 2024 communitywide inventory. Reducing the number of miles driven by cars in San José is key to reducing our greenhouse gas emissions.

  • This is why one of the four key strategies in the 2025 Climate Smart Plan Update is to move to reduce the miles we travel in our vehicles by at least 20%.

  • If fewer people traveled by driving alone and instead used more climate-friendly modes of transportation, this would help reduce our emissions. It would also reduce traffic, air pollution, stormwater pollution and crashes.

What is the City doing to make progress on this indicator? 

To reduce webpage clutter, some progress related to this metric is not included on this webpage but can be found on other dashboard webpages. Visit our Public Transit or Complete Streets dashboard pages for information on progress specific to each of these types of strategies.

Completed
In Progress / Ongoing
Planned
Evaluating

ABOUT THE DATA

Sources & Methods

The transportation mode share data used to calculate this metric is derived from Replica. Replica mode share data is generated using a combination of mobile location data, land use information, and travel behavior models to estimate the number of trips taken in San José via various transportation modes (such as auto person trips) within a given region. The data is calibrated against “ground truth” observations—such as traffic counts, transit ridership, economic activity reports, and other public datasets—to improve accuracy.

SOV trips are derived from Replica using US Census data. Replica reports data on auto person trips but does not differentiate between SOV and carpool trips. To reconcile this, US Census data on the average occupancy of carpool trips (table S0801) was used to separate SOV trips from carpool trips.

Last updated

 May 2026