At the December 2, 2021 Infrastructure Committee meeting, Dean Hsiao gave a presentation [PDF] on the Leading Pedestrian Interval (LPI) project in Downtown Oakland. The red dots on map are traffic signals that are going to updated with LPI, and green dots are ones that can not be updated due to older technology. Notes from the presentation and discussion are below.

• “Leading pedestrian interval” (LPI) — a walk light is provided a few seconds in advance of the green light for cars
  • Studies show it can reduce car/pedestrian collisions up to 60%.
• 85 signals in the Downtown area being updated.
  • 36 signals completed (northern half of Downtown)
  • 49 remaining, to start in December (southern half of Downtown)
• Other locations in Downtown need to have signal controller tech updates to allow for retiming, or to add pedestrian walk signal heads.

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