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Pilot Project to Test Second Northbound Right-Turn Lane at Moraga Road/Mount Diablo Boulevard

Post Date:11/13/2018 4:29 PM

In March 2018, the Lafayette City Council adopted the Downtown Congestion Reduction Plan, which provides for testing a second northbound right-turn lane from Moraga Road onto Mount Diablo Boulevard. On Tuesday, November 13, 2018, the City of Lafayette began testing this new right-turn lane. This pilot project is intended to evaluate whether the additional turning capacity at the subject intersection can effectively reduce traffic congestion farther upstream on Moraga Road (south of the intersection). 

The pilot project consists of several pavement striping changes. Most noticeable is the additional right-turn arrow in the middle northbound lane on Moraga Road, just before Mount Diablo Boulevard. Approximately 300 feet before reaching this intersection, drivers should also note an accompanying advance directional sign showing the new turn movement option. After turning right from Moraga Road, drivers will also notice that on Mount Diablo Boulevard approaching First Street, the City has added dashed striping for the two eastbound left turn lanes, which is designed to facilitate merging after the turn from Moraga Road. 

As part of this pilot project, the east leg crosswalk (running south – north from Plaza Park to Bank of America) at Moraga Road/Mount Diablo Boulevard is closed. Orange barricades with fencing and signage are in place to direct arriving pedestrians to use the alternate crosswalk across Moraga Road; pedestrians may also choose to detour to the east to cross Mount Diablo Boulevard at First Street. The overhead pedestrian signals are also turned off and covered. 

Concurrently, signal technology upgrades are also being installed at both Mount Diablo Boulevard/Moraga Road and Mount Diablo Boulevard/First Street. The new technology will include updated signal controllers (i.e., the computers than run the signal timing plans) and video detection with traffic data collection capability. The signal tech upgrades represent the first steps toward implementing another Downtown Congestion Reduction Plan strategy to achieve better signal coordination and traffic management along Downtown arterial roadways. 

While this pilot project is active, staff is interested to learn about users’ opinions of the changes. Please feel free to submit feedback directly to James Hinkamp, City of Lafayette Transportation Planner, at jhinkamp@lovelafayette.org or 925.299.3229.

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