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File #: 2026-5722   
Type: Regular Agenda Item
Body: Transportation Commission
On agenda: 1/28/2026
Title: Review and Discuss Proposed Quick-Build Improvements to the Lincoln/Walnut Intersection (Discussion)
Attachments: 1. Exhibit 1 - Example Diverter Island
Title

Review and Discuss Proposed Quick-Build Improvements to the Lincoln/Walnut Intersection (Discussion)
Body

To: Honorable Chair and Members of the Transportation Commission

From: Lisa Foster, Secretary to the Transportation Commission
Allen Tai, Planning, Building, and Transportation Director

EXECUTIVE SUMMARY

Staff will present proposed quick-build improvements to the Lincoln/Walnut Intersection which will prohibit through and left turn vehicular movements from Walnut Street, forcing right turns at Lincoln Avenue. The goal of the improvements will be to reduce the high number of broadside collisions that have occurred at this intersection, which is identified as a high collision intersection in the Vision Zero Action Plan.

Staff seeks Transportation Commission feedback and public comment on the proposed improvements and associated traffic restrictions.

BACKGROUND

Lincoln Avenue is a primary east-west arterial within Alameda with convenient access from the main island to the Park Street bridge and the Miller-Sweeney bridge on Tilden Way. Most of the primary intersections on Lincoln Avenue are controlled with traffic signals including the adjacent intersections of Lincoln/Willow, Lincoln/Oak, Lincoln/Park, and several others along the corridor.

The intersection at Walnut Street is the first non-signalized intersection for vehicles entering the corridor from either the Park Street bridge or from Tilden Way. Right-of-way control is through a two-way stop sign with traffic stopped on Walnut Street.

As part of the Vision Zero Implementation Plan, the Lincoln/Walnut intersection was identified in 2020 as high collision intersection with transformative potential. Many of the collisions reviewed in 2020 were vehicle-to-vehicle broadside collisions occurring as people driving on Walnut attempted to turn left onto or to cross Lincoln.

Prior to 2020, Lincoln Avenue was a four-lane road through the Walnut intersection, reducing to a three-lane road (t...

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