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Consent

Brentwood City Commission Agenda

Meeting Date:	02/12/2018
Approval for the Installation of Two Speed Tables on Charity Drive for Traffic Calming
Submitted by:	Jamie Booker, Public Works
Department:	Public Works

Information

Subject

Approval for the installation of two speed tables on Charity Drive for traffic calming efforts.

Background

The City’s policy for multi-way stop signs and traffic calming was adopted via Resolution 2009-15. This policy establishes criteria for traffic calming retrofits on residential collector streets, which are ineligible for consideration of speed humps. The criteria include conditions that warrant consideration of traffic calming measures. These are speed, volume and other criteria including street segment length and number of lanes.

Last year staff received a request from the Highland Park subdivision to initiate a speed study on Charity Drive. A review by an outside traffic engineer confirmed a speeding problem as defined in the traffic calming policy. Charity Drive is identified as a “residential collector street”. The policy requires Tier 1, or non-construction related strategies be implemented first. By recommendation of the traffic engineer, signage changes were made and police enforcement efforts were increased as a Tier 1 effort. Note that Charity Drive in this location already includes striping to provide a designated bike lane and narrower driving lanes.

A second study was requested months later by the Highland Park subdivision because they felt the Tier 1 strategies were not effective. The second study confirmed the speeding problem still existed. As a result of the second study, the traffic engineer recommended the Tier 2 strategy of installing speed tables. As required in the policy, the Highland Park Homeowners Association petitioned homes on Charity Drive within 1,000 feet of the proposed speed table locations and 26 of 34 (76%) homeowners support the installation of speed tables. As required by the policy, a public meeting was held December 13, 2017. Based on the public support evidenced by the petition (attached) and public meeting, the neighborhood supports installation of two speed tables. An aerial map showing the specific location of the two speed tables on Charity Drive is attached.

The estimated cost to install the speed tables is $10,000 each, see attached quote. The speed tables will be constructed with concrete and due to the cure time required, the road will be closed to through traffic for 2-3 days for each speed table. A detour is available for one of the speed tables minimizing the impact. However, the other location will require residents to use one direction of travel to and from their home during the construction process and public safety agencies will be made aware of the detour situation. The speed tables will be constructed one at-a-time during the summer months when school is not in session to minimize the traffic disruption. The installation also includes signage and striping per the plan prepared by our traffic consultant. A copy of the plan is attached.

Any questions can be directed to Public Works Operations Superintendent Rich Richardson.

Staff Recommendation

Staff recommends installation of 2 speed tables on Charity Drive.

Previous Commission Action

The City Commission approved the Traffic Calming policy via Resolution 2009-115 adopted on December 14, 2009.

Fiscal Impact

Amount :	$20,000
Source of Funds:	Public Works Operating Budget
Account Number:	110-43120-82640

Fiscal Impact:

The adopted policy provides that funding for Tier 1 and Tier 2 traffic calming features on residential collector streets is provided 100% by the City. Funds budgeted for street maintenance and repair are proposed for this project, and will either be completed with current year-end funds or programed for inclusion in the FY 2019 operating budget.

Attachments
Resolution 2018-12
Location Map
Construction Detail
Quote
Petition
Multi Way Stop and Traffic Calming Policy
Signed Resolution