Documents
Resources
Learning Center
Upload
Plans & pricing Sign in
Sign Out

Conditions of residential streets can greatly affect neighborhood

VIEWS: 13 PAGES: 11

									                          TRAFFIC MANAGEMENT TEAM
                              PROBLEM SOLVING

Conditions of residential streets can greatly affect neighborhood livability. When streets
are safe and pleasant, the quality of life is enhanced. When traffic problems become a daily
occurrence, our sense of community and personal well-being is threatened. As the
population of Coral Springs continues to grow, major roadways and intersections become
more congested. As motorists resort to the use of residential roadways to bypass congested
areas, speeding and cut through traffic may occur through neighborhoods. This often
results in neighborhood residents expressing their concern to the City about the overall
operation of the roadway system in their neighborhood.

To address the issues of speeding and cut-through traffic, municipalities across the country
are turning to “traffic management.” The purpose of traffic management is to preserve or
restore the planned intent of the roadway. In the context of local neighborhoods, streets are
intended to provide access to properties and not to provide high-speed connections
between collector and arterial roadways.

The Traffic Management Team, which addresses traffic-calming issues and creates
neighborhood traffic plans, has been established to develop solutions to traffic-related
problems in Coral Springs neighborhoods. Team membership includes representatives
from the Police Department, Fire Department, Community Development, City Attorney’s
Office, City Manager’s Office, the Public Works Division, and the City’s engineering
consultant.

In November of 1999, the City Commission approved the City’s original Traffic Calming
Manual and six pilot areas were selected for traffic calming techniques to be applied. The
criteria for selection was based upon a minimum volume of 1000 vehicles and an 85
percentile speed of 10 miles or more over the posted speed limit.

In June 2002 the City Commission approved a revised Traffic Calming manual. The great
majority of neighborhood streets lacked both the volume and speed requirements to justify
traffic calming. The revised manual provided for a wider range of neighborhood situations
to meet the minimum eligibility criteria, especially streets with high speeds that did not
meet the minimum traffic volumes. The Traffic Management Team also used this
opportunity to streamline the application process making it easier for residents to request
Traffic Calming devices, as well as shortening the process.

Although the primary focus of the TMT has been traffic calming other issues of traffic and
mobility do get discussed at the team’s monthly meetings. One example of the problems
solving ability of the TMT occurred in 2004 when a City resident of brought up an issue
that the TMT was able to solve. The issue involved a median opening on Lakeview Drive
in which motorists were allowed to make a u-turn maneuver. Unfortunately for this
resident the vehicles making the u-turn were often encroaching on her lawn or utilizing her
circular driveway to complete the turn.

A request was made to the City’s engineering consultant, Kittelson & Associates, to do a
complete field review of the problem and report back to the TMT. The consultant reviewed
data concerning access spacing, traffic volumes, traffic speeds, and accident histories.
Research discovered that the median openings along Lakeview Drive violated the City’s
engineering standards for minimum distance between openings.                    Kittelson’s
recommendation was therefore to close the median opening (Attachment 1).

Minutes of the September 2004 TMT meeting (Attachment 2) reflect the different
committee members discussed Kittelson’s recommendation. The TMT concurred with the
recommendation to close the median opening. A median closure request was transmitted
via a City Commission Management Report and the Public Works and Park and Recreation
Departments were to followed up with the actual construction of the median closure. The
resident who initially brought the problem to the attention of the City was kept informed of
the work schedule.

Minutes of the October 27, 2004 TMT meeting (Attachment 3) indicate that Public Works
was anticipating completion of the median opening within a week on the meeting.
                                      Attachment 1




                                MEMORANDUM
    Date: September 20, 2004                                                Project #: 3550/41

      To: Rebecca Grohall
          Jennifer Bramley
          Richard Michaud
          Susan Hess
          City of Coral Springs
          9530 West Sample Road
          Coral Springs, Florida 33065

   From: John Zegeer, P.E.
Copy to: Karl Passetti, P.E.

  Project: Coral Springs Traffic Management Team

 Subject: Median Opening at 11000 Lakeview Drive


Lakeview Drive is an east-west Collector Street that connects Atlantic Boulevard, Coral
Ridge Drive, and Coral Springs Drive in the southwestern portion of Coral Springs.
Lakeview Drive is a four-lane divided roadway with a posted speed limit of 30 mph. A
citizen, whose residence is located at 11000 Lakeview Drive, has requested that the city
close the median opening located in front of her house. Westbound vehicles on Lakeview
Drive that are making u-turn maneuvers at this median opening are encroaching on the
front yard of this residence and, on occasion, have used the circular driveway in front of
the house to make this u-turn maneuver.

At the City’s request, Kittelson and Associates, Inc. has conducted a field review of this
site and has summarized data concerning access spacing, traffic volumes, traffic speeds
and crashes (accidents) to develop a recommendation as to this request.

Access Spacing

11000 Lakeview Drive is located on the south side of Lakeview Drive between 111th
Avenue and 107th Drive. 107th Drive is located west of Coral Springs Drive. In this
section of Lakeview Drive, the median opening spacing is as follows:
        111th Avenue – 11000 Lakeview Drive median opening: 456 feet
        11000 Lakeview Drive median opening – 107th Drive: 960 feet
        107th Drive – Coral Springs Drive: 575 feet
Between 111th Avenue and 107th Drive there is a driveway on the north side of Lakeview
Drive that serves the Cypress Pointe multi-family residential development. That driveway
is located 370 feet west of 107th Drive. Only right turn-in and right turn-out movements
occur at this driveway because there is no median opening at this location. The Cypress
Pointe development also has access along 107th Drive north of Lakeview Drive.

Access Management is a traffic management strategy that promotes safe and efficient flow
of traffic along a roadway while providing safe access to adjacent property. Access
management regulates the spacing and design of driveways, medians, median openings and
traffic signals such that:
   •   conflict points are limited;
   •   conflicting movements are separated when they cannot be eliminated; and,
   •   turning traffic and queues are removed from through traffic.
Broward County Spacing Requirements. Lakeview Drive from Atlantic Boulevard to
Coral Springs Drive is designated as an Urban Collector in the Federal Highway
Administration 2000 – 2010 Functional Classification Map for Broward County.
However, Lakeview Drive is not on the Broward County Trafficways Plan. Despite this, it
is useful to consider Broward County median opening spacing standards as a general guide
for Lakeview Drive. On page 155 of the Broward County Land Development Code
(Winter, 2001) it states that, "To assure safety, capacity and control, median openings
located within a trafficway corridor shall conform to the following criteria: No median
opening shall be spaced at a distance less than 660 feet from any other median opening
unless specifically approved by the Broward County Traffic Engineering Division..." The
median opening at 11000 Lakeview Drive is located 456 feet east of 111th Avenue and,
therefore, violates the Broward County standard. The Broward County standards also
provide guidance for the left turn lanes provided at median openings. "All median
openings shall include left turn lanes with at least 200 feet storage with 100 feet transition
unless otherwise demonstrated by a traffic engineering study based on the ultimate use,
acceptable to the Broward County Traffic Engineering Division. Increased storage and
transition lengths may be required to eliminate disruption of through-traffic flow." No left
turn lane is provided at this median opening.


City of Coral Springs Spacing Requirements. The Traffic Engineering Standards for the
City of Coral Springs (October 1986, revised June 1990) state that the minimum spacing
for intersections along a four-lane collector road is to be 660 feet (Table 3, Page 8; Traffic
Engineering Standards, City of Coral Springs). The minimum spacing between median
openings is also limited to 660 feet for a four-lane city road (page 19, Traffic Engineering
Standards, City of Coral Springs). The City’s median opening spacing standard is violated
between 111th Avenue and 11000 Lakeview Drive.

Traffic Volumes

On July 13 and 14, a 24-hour traffic count was conducted on Lakeview Drive (west of
111th Avenue) in conjunction with a traffic speed study. The 24-hour volume counted was
2357 vehicles eastbound and 2741 vehicles westbound. This total daily volume of 5098
vehicles was compared against the Level of Service Threshold Volumes for “Other
Signalized Roadways” (Source: Florida Department of Transportation Quality/Level of
Service Handbook, Table 4-1, FDOT, 2002). The maximum daily volume for a Level of
Service C condition on a four-lane divided roadway is 11,100. Thus, the daily volume on
Lakeview Drive operates within a Level of Service C standard.

Manual traffic counts were also conducted at the 11000 Lakeview Drive median opening
to determine if turning movement conflicts occur during the morning and afternoon peak
hours. The counts were conducted on Monday, August 30 (5 – 6 pm) and on Tuesday,
August 31 (7:45 – 8:45 am). These times were determined to represent peak hour
conditions based on a review of the hourly summary of the daily traffic counts conducted
in July. The am peak hour volumes were as follows:
        Westbound through – 190
        Westbound u-turn – 9
        Eastbound through – 294
        Eastbound u-turn - 0

The pm peak hour volumes were as follows:
      Westbound through – 350
      Westbound u-turn – 7
      Eastbound through – 250
      Eastbound u-turn – 0

Table 4-7 of the FDOT Quality/Level of Service Handbook (see source referenced above)
indicates that the volume thresholds in the peak direction are 580 vehicles for Level of
Service C and 1140 vehicles for Level of Service D. Thus, the eastbound am peak hour
volume and the westbound pm peak hour volume each operate within Level of Service C.
During these traffic counts, about one-half of the westbound-to-eastbound u-turning
vehicles at the median opening were observed to encroach on the grass swale south of the
edge of pavement in front of 11000 Lakeview Drive.

Traffic Speeds

Measured speeds on the section of Lakeview Drive between Coral Ridge Drive and Coral
Springs Drive are in excess of the posted speed limit. In an eastbound direction, about
85% of the vehicles (throughout the day) travel in excess of the 30-mile per hour speed
limit. In a westbound direction, over 90% of the vehicles (throughout the day) travel in
excess of the 30-mile per hour speed limit. The 85th percentile speed is 41 mph eastbound
and 43 mph westbound.

Crashes (Accidents)

The City Police Department provided Florida Traffic Crash Report Forms for the Year
2003 on this section of Lakeview Drive. One accident was reported at the Coral Ridge
Drive intersection (a left turn accident). Two accidents were reported at the 107th Drive
intersection (a right-angle accident and a sideswipe accident). Three accidents were
reported at the Coral Springs Drive intersection (two fixed-object accidents and one left
turn accident). One midblock accident occurred west of 111th Avenue. At this midblock
location, the motorist lost control of the vehicle and hit a fixed object.

Conclusions
Most motorists are traveling in excess of the speed limit on Lakeview Drive in the vicinity
of the 11000 Lakeview Drive median opening. In addition, only a few vehicles were
observed to make u-turn movements at this median opening during the weekday am and
pm peak hours. The spacing between median openings between 111th Avenue and the
median opening in front of the 11000 Lakeview Drive residence does not meet Broward
County or City of Coral Springs spacing standards. In response to a request from the
Public Works Department, the City Fire Chief evaluated this median opening location and
determined that the closure of the median “will have no adverse effect on fire operations.”

Thus, it appears that the most appropriate course of action would be to close the median
opening at 11000 Lakeview Drive and to monitor traffic operations in the area. Some
increase in the volume of westbound-to-eastbound u-turns may occur on Lakeview Drive
at the 111th Avenue intersection as Cypress Pointe residents attempt to travel eastbound to
Coral Springs Drive. However, these residents have the option of exiting the development
onto 107th Drive (southbound) and making a left turn at the 107th Drive/Lakeview Drive
intersection to travel eastbound toward Coral Springs Drive.
                                       Attachment 2

                    DEVELOPMENT SERVICES DEPARTMENT
                     COMMUNITY DEVELOPMENT DIVISION
                        INTEROFFICE MEMORANDUM

TO:            Michael S. Levinson, City Manager

THRU:          Susan M. Hess, Director of Community Development

FROM:          Kristina Johnson, Transportation Planner

RE:            Traffic Management Team September 28, 2004 Meeting


The Traffic Management Team (TMT) monthly meeting was held on Tuesday, September
28, 2004 for the monthly regular meeting. Susan Hess, Director of Community
Development convened the meeting at 3:45 PM. Attached for your information is a
meeting agenda and sign-in sheet. The following City Staff members attended the meeting:

Susan Hess, Director of Community Development
Rich Michaud, Director of Public Works
Rebecca Grohall, Community Development
Kristina Johnson, Community Development
Don Saunders, Public Works
Duane Yeazel, Police Department

Also in attendance was John Zegeer from Kittelson and Associates.

FY 2004 TRAFFIC CALMING

NW 112th Avenue- Community Development staff informed the team regarding the status
of the speed hump installation at this location. Because of hurricane debris removal efforts,
Public Works would not be installing the humps and striping the roadway until early
November. As part of the speed hump installation project on this roadway, Public Works
will be installing a canal guardrail. Public Works did not commit to an exact date for
installing the guardrail, but they assured the team they would schedule the installation of
the guardrail as close to the speed hump installation as possible.

85th Avenue- The TMT discussed how to remedy problems caused by vehicles avoiding
speed humps. The Police Department representative mentioned that a neighborhood in
Deerfield Beach installed bollard poles with reflectors adjacent to the speed jump. He
believes that the poles were aesthetically pleasing and did not deteriorate visual conditions
in the neighborhood. The TMT discussed other methods for deterrence, like landscaping or
small plantings.

NW 14th Street (Shadow Wood) and NW 16th Street (Ramblewood)- The Fire
Department did not support the installation of traffic calming devices at these locations
because of emergency response issues. In order to close out the files, Rebecca mentioned
that the Fire Department should transmit a brief interoffice memo to Community
Development officially responding to the file.

FY 2005 TRAFFIC CALMING

Staff discussed the three locations qualifying for traffic calming installations: NW 91st
Avenue, NW19th Drive, and NW 118th Drive. It was noted that the posted speed limit for
NW 118th Drive is 30 MPH, which slightly alters the scoring process. Also, it was
mentioned to Kittelson that the end of FY2004 is approaching and a new scope of services
for FY2005 should be transmitted to the City.

KITTELSON REPORT- LAKEVIEW DRIVE

Kittelson briefly discussed their analysis that investigated the feasibility of closing the
median on Lakeview Drive. The analysis concluded that median opening on Lakeview
Drive does not meet appropriate access management spacing standards, and then
recommended that City close the median. The TMT concurred with the recommendations.
The median closure request was being transmitted via the City Commission Management
Report as an informational item. Public Works and Parks and Recreation will follow up
with the closing. The resident that brought this request to the City’s attention should be
informed after a work schedule for the median closure has been established.

TRAFFIC IMPROVEMENT PROJECTS

Staff inquired about the status of improvements at the University Drive/Royal Palm
Boulevard intersection, and requested that Public Works contact Broward County for a
copy of the design plans. Also, the Public Works Director mentioned that the Coral
Springs has issued an RFR to add a new engineering firm to the City’s prequalified list of
consultants.

ACTION ITEMS

•   Public works will investigate status of improvements at the University Drive/Royal
    Palm Boulevard intersection and provide a report to the TMT.
•   Obtain pictures of Deerfield Beach bollard poles.
•   Update on Lakeview Drive Median Closure.
•   The next meeting will be held on October 26, 2004.


The meeting adjourned at 4:30 PM.



ATTACHMENTS:          Agenda
                      Sign In Sheet
                                      Attachment 3

                   DEVELOPMENT SERVICES DEPARTMENT
                    COMMUNITY DEVELOPMENT DIVISION
                       INTEROFFICE MEMORANDUM

TO:           Michael S. Levinson, City Manager

THRU:         Susan M. Hess, Director of Community Development

FROM:         Kristina Johnson, Transportation Planner

RE:           Traffic Management Team October 27, 2004 Meeting


The Traffic Management Team (TMT) monthly meeting was held on Tuesday, October 27,
2004 for the monthly regular meeting. Susan Hess, Director of Community Development
convened the meeting at 3:30 PM. Attached for your information is a meeting agenda and
sign-in sheet. The following City Staff members attended the meeting:

Mayor Rhon Ernest-Jones
Susan Hess, Director of Community Development
Rich Michaud, Director of Public Works
Kristina Johnson, Community Development
Dwight Weddington, Public Works
Duane Yeazel, Police Department

Also in attendance was John Zegeer from Kittelson and Associates.

FOLLOW UP ITEMS FROM 9/28 MEETING

University Drive/Royal Palm Boulevard Improvements- Public Works provided an
update on the status of this intersection improvement project. In a recent e-mail, Broward
County indicated that the originally proposed geometrics have been modified to now
include a second southbound left turn lane; however, they stated that this modification
should not affect the first quarter FY2005 construction date. Community Development
will follow up with the City Engineer to obtain more detailed information on the status on
this project.

University Drive Resurfacing Project

Public Works inquired about the status of the University Drive resurfacing project.
Community Development will follow up with FDOT on the status of the design plans.


Deerfield Beach Bollard Poles

At September’s meeting, staff discussed how to remedy problems on 85th Avenue caused
by vehicles avoiding speed humps. One potential deterrence remedy discussed was the
placement of bollard poles on either side of the speed hump. Staff viewed examples of
bollard poles in a Deerfield Beach neighborhood and expressed considerable concern about
the aesthetics. Staff also mentioned that the reflector treatments on the Deerfield Beach
bollard poles did not meet the Manual of Uniform Traffic Conform Devices (MUTCD)
standards. Staff agreed that other deterrence remedies, like landscaping treatments and
PVC piping material, might be more suitable for Coral Springs. Public Works will install
similar material for 85th Avenue, similar to what has been used on Sportsplex Drive

Lakeview Drive

Public Works announced that the median closure is anticipated for this week. In
September, Kittelson conducted an analysis that investigated the feasibility of closing the
median on Lakeview Drive. The analysis concluded that median opening on Lakeview
Drive does not meet appropriate access management spacing standards, and should be
closed permanently.

NW 14th Street and NW 16th Street

The Fire Department did not support the installation of traffic calming devices at these
locations. In order to close out the files, the Fire Department (not in attendance) should
transmit a brief interoffice memo to Community Development officially responding to the
issue. Community Development will follow up with Ellen Liston, principal from the
elementary school, to ensure she knows about the official traffic calming decision.


STATUS OF FY 2004 TRAFFIC CALMING LOCATIONS

NW 1st Street

Public Works informed the TMT that the speed humps have been installed in this
neighborhood. This location will be evaluated in six months to gauge the effectiveness of
the speed humps.

NW 112th Avenue

Installation of the speed humps is slated for the first or second week of November. Public
Works reiterated their commitment, as part of the speed hump installation, to install a canal
guardrail on 112th Avenue and 113th Avenue. Also, Community Development informed the
TMT of the pending citizen lawsuit to stop the installation of the speed humps.



FY 2005 TRAFFIC CALMING LOCATIONS

Staff discussed the three locations qualifying for traffic calming installations: NW 91st
Avenue and NW 19th Drive. Kittelson will begin work on these locations upon receipt of
the completed purchase order and the speed and volume information for these locations.
Traffic calming activities this year will focus on the monitoring of existing facilities.

TRAFFIC REQUEST LOG
Staff discussed the management of the traffic request log, and agreed that the management
responsibilities should be transferred to Community Development. Broward County will
be notified of the new City traffic and transportation liaison.

OTHER BUSINESS

    •   Staff discussed the Coral Springs Holiday Parade Plans for the Coral Springs
        Holiday Parade must be submitted to the County by December 9th.
    •   Staff discussed the traffic and pedestrian circulation issues at the “The Walk”
        between Starbucks and Barnes and Noble. Staff acknowledged that traffic
        circulation has improved with the addition of a permitted left-turn on NW 94th
        Avenue to University Drive northbound. We agreed that the City should work with
        Kittelson to investigate circulation enhancements at this location.
    •   Staff discussed drainage issues in the vicinity of Sportsplex speed hump at the
        north end.
    •   Staff discussed issues with the swales at the Atlantic Boulevard/Lakeview Drive
        intersection. Community Development will follow up on the drainage design
        requirements as stipulated by the code.

ACTION ITEMS

•   Obtain updated information on the of improvements at the University Drive/Royal
    Palm Boulevard intersection
•   Coordinate with Public Works on the transition of the traffic request log
    responsibilities.
•   Obtain design plans for the University Drive resurfacing project.
•   Update on 112 Avenue speed hump and guardrail construction
•   Next meeting: December 7th


The meeting adjourned at 5:00 PM.

ATTACHMENTS:          Agenda
                      Sign In Sheet

								
To top