Previous posts on Leading Pedestrian Interval (LPI), in the City of Sacramento and more generally, at available at tag: LPI.

The Strong SacTown Street Design Standards Working Group has a team working on Leading Pedestrian Intervals (LPI) at traffic signals. If LPI grabs your interest, I encourage you to join the working group. Meetings are posted on Luma, a calendaring application. Go to Luma (app or website: https://luma.com/strongsactown). The next working group group meeting is not listed there yet, but it is normally on the third Sunday of the month at 1:00 PM. Meetings are open to the public; one need not be a member of Strong SacTown or Strong Towns to join in (though you should be!).

The City of Sacramento has a Traffic Signal Operations and Standards page. The prose is garbled, to say the least. The linked documents have nothing to do with operations. It does not include a Traffic Signal Operations Manual (TSOM). Though the plan is supposed to be updated, it is not clear if it even exists.

Streets for People Active Transportation Plan (2025-08, page 105): “An evaluation of best practice to establish guidelines for leading pedestrian intervals (LPIs) at signalized intersections is currently (2025) underway and will be included in the updated City of Sacramento Traffic Signal Operations Manual (TSOM). The TSOM and the guidelines for LPIs will be presented to the Active Transportation and Disability Advisory Commissions to allow for public discussion of the proposed standard practices.”

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Vision Zero Action Plan Update Safety Improvement Strategies presentation includes the following graphic:

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The Vision Zero Action Plan Update Top Collision Profiles and Countermeasures memo includes the following graphic, which has more detail. It is identified as Tier 3, Engineering Countermeasures, Managing conflicts in time.

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The Vision Zero Action Plan Update draft recommendations includes #9: “Update City Traffic Signal Operations Manual (TSOM) to reflect complete streets and designs reflective of reducing exposure, likelihood, and severity. Include application of Leading Pedestrian Intervals, No Right Turn on Red, Protected Left-Turn Phasing, Rest on Red, and other similar strategies.” Items 19 and 26 might also include LPIs, though they are not called out there.