California Safe Speeds Toolkit

Introducing this Toolkit 

This toolkit follows the work of the Zero Traffic Fatalities Task Force (ZTFTF) and is intended to help local jurisdictions across California set safer speed limits that accommodate all road users using Safe System principles. This toolkit consolidates key research on Safe Speeds from the ZTFTF Research Synthesis by the University of California Institute of Transportation Studies, provides details on speed limit setting flexibilities under the existing California framework, highlights select speed limit setting case studies from cities across California, and points local jurisdictions toward next steps in pursuing safe speed limit setting.   

Navigation

Click on each box to navigate between the different parts of the toolkit.

Research on Speeds, Speed Limits and Safety

Current Speed-Limit-Setting Law

Real-World Examples and Self Quiz

Summary and Next Steps

References

Acronyms

Glossary

Recording of the Safe Speeds Toolkit Webinar

Disclaimer

This Toolkit does not constitute a standard, specification, or regulation. This Toolkit is not intended to replace the existing Caltrans mandatory or advisory standards and is not intended to be a substitute for engineering knowledge, experience or judgment. This Toolkit promotes better access to helpful information and concepts from various agencies and organizations. UC Berkeley and Caltrans acknowledge the existence of other practices and provide this Toolkit for reference and direction for those responsible for making professional engineering or other design decisions. 

Please be aware that neither UC Berkeley nor Caltrans is the author of the external sources contained in this Toolkit and are therefore not responsible for errors or omissions that may be contained within those external sources. The references contained in this Toolkit are provided for the user’s convenience. The content or information in such references is the sole responsibility of their respective authors and/or owners.