City of Greater Sudbury Transportation Study Report

9.2. Intersection Improvements
Discussions with Greater Sudbury staff and technical analysis have identified a number of
intersections that are currently experiencing either capacity or operational problems. As
traffic volumes increase, these problems will only get worse. Accordingly, recommended
improvements including supporting rationale are presented in the following sections.
1. Paris Street/Ramsey Lake Road
2003 turning movement counts at this intersection indicated a traffic demand in the order
of 475 right turning vehicles during the a.m. peak hour. Analysis revealed that traffic in
the right turn lane was spilling back and blocking the through lanes on some cycles. The
installation of a northbound right turn channelization, combined with an increased storage
length for this lane will reduce the occurrences of queue spill over into the through lanes
thereby improving operations at the intersection. Therefore, it is recommended a
northbound right turn channelization be constructed at this intersection.
2. Paris Street/Regent Street
The most recent counts available (summer 2000) indicate a demand of 437 northbound
left turns and 467 southbound left turns at the intersection during the p.m. peak hour on
Long Lake Road and Paris Street respectively. The current operating condition at the
intersection under these conditions results in a v/c ratios of 0.82 and 0.91 for the
northbound and southbound left turns respectively. The current lane configuration
requires split phasing creating longer delays to other movements. Providing separate
dual left turn lanes on Long Lake Road and Paris Street will allow for more efficient signal
timing operations at the intersection.
Road improvements required at this intersection to help alleviate existing and potential
future capacity problems include conversion of the existing left turn through lanes on
Paris Street and Long Lake Road to left turn lanes and addition of through lanes on Paris
Street and Long Lake Road.
3. The Kingsway at Barrydowne Road and Falconbridge Highway
A traffic impact study for the proposed 405,000 sq.ft. Millennium Centre development was
completed by BA Group in 2004. Existing and future traffic volumes were assessed and
analyzed to determine existing deficiencies and future deficiencies anticipated for the
year 2008. The BA Group study recommended a number of intersection improvements
and road connections needed to service the proposed development that have been
approved by the City.
Improvements at the Kingsway and Barrydowne Road intersection include:
Extend southbound right turn lane storage.
Extend southbound left turn lane storage.
CITY OF GREATER SUDBURY
OFFICIAL PLAN BACKGROUND REPORT
September 2005 Page 93