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Committee directs 35 mph signs for Glenbrook Way after speed study
Summary
A traffic study showed an 85th-percentile speed of about 37 mph on Glenbrook Way; the committee agreed to post a signed 35 mph limit as the most defensible setting and instructed Public Works to install signs without a budget amendment.
Public Works presented a speed study for Glenbrook Way after a resident request for more speed limit signs. The traffic engineer found the 80th/85th-percentile speeds supported a signed limit at either 35 or 40 mph; staff recommended signing the corridor at 35 mph and installing signs consistent with engineering practice.
The committee discussed crash history on Glenbrook Way and noted most collisions involved vehicles pulling from access driveways rather than high-speed through travel. The traffic engineer said the 85th-percentile speeds were about 37 mph in one direction and 38 mph in the other, and explained that speed limits are set within 5 mph of the 85th percentile. "Setting the limit at 35 miles per hour is the most defensible speed limit," staff said, and committee members agreed to direct Public Works to install 35 mph signage.
The committee did not require a budget amendment for sign installation and discussed coordinating sign post style with nearby business/development aesthetic treatments if property owners or the business association wished to fund decorative posts. Staff will place standard speed-limit signage at locations determined by the traffic engineer and coordinate with police on enforcement as needed.
