HomeMy WebLinkAboutDTS-09-123 - Traffic Calming - Laurentian DrJ
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Qevefopment &
Technical 5ervrces
REPORT TO: Development & Technical Services Committee
DATE OF MEETING: September 14, 2009
SUBMITTED BY: John McBride, Director of Transportation Planning
PREPARED BY: Jeramie Lewis, Traffic Technologist
WARD(S) INVOLVED: Ward 4
DATE OF REPORT: August 5, 2009
REPORT NO.: DTS-09-123
SUBJECT: TRAFFIC CALMING - LAURENTIAN DRIVE
RECOMMENDATION:
That five (5) speed humps and two (2) raised crosswalks be installed on Laurentian Drive
between Block Line Road and Westmount Road.
BACKGROUND:
Traffic volume and speeding are significant safety related issues frequently raised by residents
of affected neighbourhoods in the City of Kitchener. In response to these issues, Kitchener City
Council adopted a Traffic Calming Policy in 2004 and established an annual budget to address
traffic management issues in residential neighbourhoods. The traffic calming policy outlines a
number of evaluation criteria that provide a fair and consistent review of streets and
communities, while defining and prioritizing the individual streets and/or communities that are
most in need of traffic calming, from a traffic safety perspective.
Transportation Planning has received requests from residents of the Laurentian Drive
Community on numerous occasions in the past to review the existing traffic conditions on
Laurentian Drive. According to the concerns indicated, traffic using Laurentian Drive is speeding,
creating concerns regarding pedestrian safety.
In response to these requests, the City of Kitchener has reviewed the existing traffic conditions on
Laurentian Drive and in January 2008, a traffic calming review was initiated with the intent to
reduce vehicle speeds, deter non residential traffic from the area and reduce the incidence of
collisions, thereby increasing safety for all users within the right of way.
REPORT:
Laurentian Drive runs from Block Line Road to Westmount Road and is designated as a minor
collector roadway. The function of a typical minor collector roadway is to collect and distribute
traffic between local streets and other collector roadways. Minor collector roadways are not
generally intended to carry through traffic. The uniform unposted speed limit is 50 km/h, as
outlined within the City of Kitchener Uniform Traffic Control By-law 2007-138.
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On April 10, 2008 our study team held its first public meeting to discuss traffic issues and
concerns on Laurentian Drive and possible approaches to developing solutions. Traffic volume,
traffic speeds and pedestrian safety were identified as the main concerns. The existing traffic
conditions as discussed in the first meeting are as follows:
Collision Analysis
The collision history was reviewed for Laurentian Drive from Westmount Road and Block Line
Road. There were twelve (12) reported collisions from January 2005 to December 2007.
The collision history involved four (4) angle collisions, four (4) rear end collisions, two (2) loss of
control collisions and two (2) parked vehicle collisions. This number of collisions is not unusual
for a roadway of similar in nature to Laurentian Drive. Additionally, while there are collisions,
there are no distinct preventable collision patterns occurring.
Automated Volume & Speed Studies
Volume and speed studies were conducted along Laurentian Drive both in front of Trillium
Public School and east of Dunsmere Drive. The following data was recorded:
Location
Laurentian Drive in front of Trillium
Public School
Auaust 12-17. 2008
AADT ~~ 85t" Percentile
2103 veh/day ~~ Eastbound - 56.1 km/hr
Westbound - 58.3 km/hr
Laurentian Drive east of Dunsmere 3106 veh/day Northbound - 53.6 km/hr
Drive
August 12-17 2008
Southbound - 54.3 km/hr
Laurentian Drive is designated as a minor collector roadway. The expected AADT for a typical
minor collector roadway is 2000 to 8000 vehicles/per day, therefore the traffic volumes along
this stretch of roadway are within the expected range for a minor collector roadway. The 85th
percentile speed is similar to other minor collector roadways with similar characteristics.
Based on the analysis of existing traffic, public input and the City of Kitchener's Traffic Calming
Policy, five (5) potential alternatives, comprised of a number of measures of varying degree,
were considered, including "do nothing" (the "do nothing" alternative is required as part of any
formal traffic calming review). These alternatives were then evaluated by the project team based
on a number of social, natural and economic criteria to develop a preferred option. The following
is a list of the alternatives considered:
A series of five (5) speed humps and two (2) raised crosswalks -speed humps are
vertical deflections in the roadway that force vehicles to slow down to negotiate the
humps, and raised crosswalks are vertical deflections in the roadway, along with a
narrowed roadway, that forces vehicles to slow down when negotiating the crosswalk.
A series of three (3) traffic circles and three (3) raised crosswalks -traffic circles are
horizontal deflections and intersection control measures that force vehicles to slow down to
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negotiate and yield to opposing traffic and raised crosswalks are vertical deflections in the
roadway, along with a narrowed roadway, that forces vehicles to slow down when
negotiating the crosswalk.
A series of seven (7) roadway narrowings -narrowings force vehicles to slow down
when negotiating the reduced effective roadway width.
A series of four (4) traffic circles and two (2) refuge islands -traffic circles are horizontal
deflections and intersection control measures that force vehicles to slow down to negotiate
and yield to opposing traffic and refuge islands are medians in the roadway at crosswalk
locations that provide a place of refuge for pedestrians crossing.
Do nothing.
A second public meeting was held on May 26, 2009 to present the alternatives that were
developed based on resident input and the traffic issues at hand, the advantages and
disadvantages of each alternative, and to present the preferred alternative as determined by the
steering committee. Attendees were asked to provide any comments before a recommended
plan was developed.
On May 29, 2009, Transportation Planning mailed a survey to all residents/property owners that
abut or are adjacent to Laurentian Drive, as well as to any other parties that had indicated
interest in the study, outlining the recommended plan.
The intent of the survey was to determine if there is sufficient support for the implementation of
the recommended measures. As per the City of Kitchener Traffic Calming policy, a minimum of
50% of directly affected residents/property owners must respond to the survey and 60% of the
respondents must support the recommended plan, in order for any further consideration of the
plan.
There were a total of 107 properties surveyed within the boundaries of the study area. The
results of the survey are as follows:
In favour of the recommended plan 47 (82%)
Opposed to the recommended plan 10 (18%)
Total: 57 out of 107 responded (53%)
Therefore, the Laurentian Drive traffic calming study has met the minimum required community
support as outlined in the City of Kitchener Traffic Calming policy. The measures recommended
for Laurentian Drive can be considered good traffic engineering in that they address the
concerns regarding reducing speeds, non residential traffic on Laurentian Drive and pedestrian
safety.
As part of the traffic calming study the recommended traffic calming plan was distributed to all
affected agencies for their comments/concerns. Responses were received from Waterloo
Regional Police Services, City of Kitchener Operations Services and City of Kitchener Fire
Services. The following is a synopsis of their comments:
Waterloo Regional Police Services - No concerns.
City of Kitchener Operations -Concerns with icing at the base of vertical deflections
which results in extra salting at the base of any vertical deflection. This extra attention
required will add to the cost and time taken to conduct winter maintenance.
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Emergency Medical Services - No concerns.
City of Kitchener Fire Services -Opposed to any vertical deflection due to increased
response times and concerns regarding vehicle maintenance. Additionally, Fire advises
that all roadways be designed to meet the requirements of the OBC (Ontario Building
Code) and the City of Kitchener Urban Design Guideline Manual.
Grand River Transit -Concerns about schedule reliability due to delays caused by the
implementation of speed humps, also the speed humps will cause discomfort to both the bus
operator and passengers. However, will work with staff to identify appropriate `near side' bus
stop locations for installation of vertical measures.
Should Council endorse the Recommended Plan, all proposed traffic calming measures are
expected to be installed on Laurentian Drive late fall 2009 and/or early spring 2010.
COMMUNICATIONS:
This project has had extensive public involvement and communication. It has included two
public information centres, a comment form and a survey, as well as the use of web-based
communication through the City's website.
CONCLUSION:
The recommended plan, which recommends the installation of five (5) speed humps and two (2)
raised crosswalks, provides the best technical solution to problems indicated through the traffic
calming study. Transportation Planning feels that the recommendations improve general traffic
conditions, as well as improved pedestrian safety, for users of Laurentian Drive.
FINANCIAL IMPLICATIONS:
The cost to install five (5) speed humps and two (2) raised crosswalks is approximately $40,000.
This cost will be taken from the existing traffic calming budget.
ACKNOWLEDGED BY: Jeff Willmer, Interim General Manager
Development and Technical Services Department
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