HomeMy WebLinkAbout2020-06-01; Traffic and Mobility Commission; ; TRAFFIC CALMING PLANS FOR ORIOLE COURT, MIMOSA DRIVE, MOORHEN PLACE AND DOVE LANEItem 3
Meeting Date:
June 1, 2020
To: Traffic and Mobility Commission
Staff Contact: Lindy Pham, Associate Engineer
Lindy.Pham@Carlsbadca.gov or 760-602-2768
Subject: Traffic Calming Plans for Oriole Court, Mimosa Drive, Moorhen Place and
Dove Lane
Recommended Action Based on the findings contained in this report and the requirements of the Carlsbad Residential Traffic Management Program (CRTMP), staff recommends the Traffic and Mobility Commission approve an exception to the CRTMP and support the proposed traffic calming plans on Oriole Court Mimosa Drive, Moorhen Place and Dove Lane.
Background
The project to complete the missing portion of the Poinsettia Lane is currently under
construction as part of the Poinsettia 61 residential development. In anticipation of the traffic
impacts caused by the gap closure project, staff conducted a traffic study to analyze the
impacts to the adjacent roadways and neighborhoods.
On Nov. 21, 2019, a public meeting was held at Aviara Oaks Elementary School to discuss the
findings of the traffic study. At this meeting, residents from the Viadana and Pavoreal
communities expressed their concerns on the potential increase of cut-through traffic on Oriole
Court, Mimosa Drive, Moorhen Place and Dove Lane (see Exhibit 1). Cut-through traffic occurs
when traveling on local streets provides time savings compared to remaining on the arterial
roads. The traffic study identified the Oriole Court-Mimosa Drive-Moorhen Place-Dove Lane as
a potential cut-through route. Although the measured speeds on these neighborhood streets
were found to be below the 32 mph threshold identified in the CRTMP for Phase II
implementation, staff is utilizing the CRTMP process to address the potential cut-through traffic
identified in the Poinsettia traffic study and to address concerns heard at the Nov. 21 public
meeting.
Data
The CRTMP was created to provide a process for minimizing disruptions to residential
neighborhoods from excessive speed and high volume. The program is a three-phase process,
which offer solutions at increasing levels of cost and complexity. The first phase focuses on
education and enforcement solutions and utilizes measures such as installation of speed limit
signs, pavement legends and working with the police department to provide enforcement
based on their availability. Phase II of the CRTMP utilizes cost-effective traffic management
devices such as speed cushions to help reduce speeds and therefore discourage cut-through
traffic on neighborhood streets. In order to be eligible for Phase II consideration, the measured
critical speed, otherwise known as the 85th percentile street, must be at least 32 miles per hour
(mph).
For streets that do not meet the eligibility criteria, the CRTMP allows consideration of an
exception into the CRTMP process if approved by the Traffic and Mobility Commission.
Commission.
The results of the speed measurements for Oriole Court and Mimosa Drive are summarized in
Table 1.
Table 1: Measured Critical Speed
STREET STREET LIMITS CRITICAL SPEED
Oriole Court Poinsettia Lane to Mimosa Drive 25 mph
Mimosa Drive Moorhen Place to Aviara Parkway 27 mph
The critical speeds for Oriole Court and Mimosa Drive are measured below the CRTMP Phase II
threshold.
Per the CRTMP Phase II process, staff invited residents within the study area to neighborhood
meetings to discuss traffic calming strategies and to receive feedback from residents on the
various concept plans staff developed to address speeding concerns. Details of the neighborhood
meetings are summarized in Table 2.
Table 2: Neighborhood Meetings
STREET STREET
LIMITS Meeting Date Meeting Location No. of
Attendees
Oriole Court
to Dove Lane
Oriole Court, Mimosa
Drive, Moorhen Place
and Dove Lane
Jan. 23, 2020 Alga Norte
Community Center 22
Mimosa
Drive
South of Moorhen
Place to Aviara
Parkway
Feb. 20, 2020 Faraday Center 13
At each of the neighborhood meetings, a preferred traffic calming plan was selected. For Oriole
Court/Mimosa Drive/Moorhen Place/Dove Lane, a traffic calming plan consisting of three speed
cushions and curb extensions at two intersections was selected. For Mimosa Drive between
Moorhen Place and Aviara Parkway, a traffic calming plan consisting of four speed cushions was
selected.
After the neighborhood meetings, letters were sent to residents and property owners with
proposed traffic calming features directly in front of their homes. Based on feedback received,
the traffic calming plans were adjusted and then finalized (see Exhibits 2 and 3).
The CRTMP requires that the majority of residents and property owners within the study area
must support the plan as determined by a mailed survey. The survey is considered valid if 50%
or more of the residents and non-resident owners return the completed survey. Positive
support for the plan is indicated by 67% or more of the returned surveys in support of the
proposed plan. The survey results are summarized in Table 3.
Table 3: Survey Results
STREET
Total No.
of
Surveys
Sent
Total No.
of
Surveys
Returned
Return
Rate
Total No.
of
Support
Support
Rate
Met
Support
Criteria?
Oriole Court to
Dove Lane 52 29 56% 25 86% YES
Mimosa Drive 115 65 57% 53 82% YES
Based on the results of the public engagement process including neighborhood surveys for the
proposed traffic calming plans, staff recommends that the Traffic and Mobility Commission
approve an exception to the CRTMP and support the proposed traffic calming plans for Oriole
Court, Mimosa Drive, Moorhen Place and Dove Lane.
Necessary Council Action
City Council approval required for the traffic calming plans for Oriole Court, Mimosa Drive,
Moorhen Place and Dove Lane.
Next Steps
Staff will work with consultant to develop the final traffic calming plans.
Exhibits
1. Location Map
2. Oriole Court/Mimosa Drive/Moorhen Place/Dove Lane Traffic Calming Plan
3. Mimosa Drive Traffic Calming Plan
2
LOCATION MAP