Traffic Operations Policy

Traffic Operations Policy Directives (TOPDs), Memos, and Letters

Accessibility Assistance: Caltrans makes every attempt to ensure our documents are accessible. Due to variances between assistive technologies, there may be portions of these documents which are not accessible. Where documents cannot be made accessible, we are committed to providing alternative access to the content. Should you need additional assistance, please contact us at (916) 654-2852 or visit Request ADA Compliant Documents.

Number Effective
24-01 02/08/2024  Leading Pedestrian Interval (LPI) at Signalized Intersections (PDF)
23-01 01/30/2023 Traffic Count Baseline Guidance Due to the Coronavirus Disease 2019 (COVID-19) Pandemic (PDF)
Memo 12/29/2022 Implementation of Leading Pedestrian Interval (LPI) at Signalized Intersections (PDF)
22-06 03/09/2022 Department Furnished Electrical Equipment and Software Programs on the State Highway System (PDF)
22-03 02/11/2022 Communications to Traffic Signals (PDF)
22-01 01/03/2022 Adaptive Traffic Signal Control (ATSC) Technology at Signalized Intersections on the State Highway System (PDF)
21-14 11/23/2021 Engineering, Operational, and Safety Analysis (EOSA) Guidance (PDF)
21-13 11/05/2021 Recording and Retention of Traffic Video Images in the State Highway Right-of-Way (PDF)
21-12 11/01/2021 Local Traffic Responsive and Corridor Adaptive Ramp Metering on the State Highway System (PDF)
21-09 08/06/2021 Caltrans Roadway Lighting Manual (PDF)
21-06 06/24/2021 Touch-free Accessible Pedestrian Signal (APS) (PDF)
20-03 11/13/2020 Portable Changeable Message Signs (PCMS) Anti-Hacking Protection (PDF)
20-01 11/06/2020 Managed Lane System Plan (MSLP) Guidelines (PDF)
Memo 12/16/2019 Special Events Encroachment Permits: Equal Prize Compensation Requirements (AB 467 Implementation) (PDF)
Memo 08/07/2017 Exemption for Encroachment Filming Permits from the "Implementation of Traffic Breaks" (PDF)
Memo 07/26/2017 Temporary Ground Anchor (Tieback) Encroachments (PDF)
Memo 05/17/2017 Guidelines for Visibility Improvement Requests (VIRs) (PDF)
Memo 12/28/2016 Tower Cranes Encroaching Over State Highway Right-of-Way (PDF)
Memo 05/10/2016 Encroachment Permits for Filming Using Unmanned Aircraft Systems (PDF)
Memo 03/15/2016 Eruvin Within State Right-of-Way (PDF)
13-02 08/30/2013 Intersection Control Evaluation (ICE) (PDF)
06-03 06/07/2006 Commercial Television Broadcasts from Transportation Management Centers (TMC) (PDF)
06-02 06/07/2006 Distributing Traveler Information to Commercial/Media Information Service Providers (PDF)
Memo 01/25/1991 Nonstandard Lighting Poles on Conventional State Highways Installed and Maintained by Others (PDF)