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Traffic improvement projects

Traffic Improvements

Projects focused on improving traffic congestion and safety

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Calgary is growing both in population and in infrastructure, and with this growth comes impacts to traffic on our roadways. To address this issue, The City has developed the Traffic Operational Improvements program (TOI).

The program evaluates various intersections across Calgary that require operational improvements for a variety of reasons like traffic congestion and safety issues. Once an intersection meets the necessary criteria of the TOI program, a temporary traffic pilot or, in some cases, permanent traffic measures will be proposed for installation. Traffic pilot and/or permanent traffic measures could include:

  • Changes to signal timings
  • Temporary roadway restrictions
  • Additional permanent turning lanes

Traffic improvement projects

Barlow Trail and 114 Avenue S.E.

The City reviews the collisions that happen at intersections in Calgary and identifies where changes need to be made to improve safety.  The eastbound right turn at Barlow Trail/114 Avenue was identified as a location where changes need to be made to improve safety.  As a result, the eastbound right turn at Barlow Trail/114 Avenue S.E. will be changed from a yield condition to a dual-lane signalized right turn.

What type of construction is taking place?

The eastbound right turn at Barlow Trail/114 Avenue SE is going to change from a yield condition to a dual-lane signalized right turn.

Has The City made this change at other locations?

Yes. The City changed the southbound right turn at Blackfoot Trail/Southland Drive SE to a dual-lane signalized right turn.

Is The City going to keep track of collisions at this location?

Yes. The City of Calgary reviews the collisions that happen at intersections in Calgary and identifies where changes need to be made to improve safety. Once a location is identified and changes are made at an intersection, The City of Calgary monitors how the changes improve safety.

How was this change chosen?

A dual-lane signalized right turn was selected based on the volume of right turning traffic, proximity to the Deerfoot Trail/Barlow Trail interchange, crossing of a multi-use regional pathway and volume of southbound through traffic on Barlow Trail. 

Shaganappi Trail and Dalhousie Drive N.W.

The City reviews the collisions that happen at intersections in Calgary and identifies where changes need to be made to improve safety. Southbound Shaganappi Trail N.W. at Dalhousie Drive N.W. was identified as a location where changes need to be made to improve safety. As a result, a third southbound lane will be added to Shanganappi Trail north of Dalhousie Drive NW and connect to the entrance to the Canadian Tire/Co-Op parking lot.

What type of construction is taking place?

A third southbound lane will be added to Shanganappi Trail north of Dalhousie Drive N.W. and connect to the entrance to the Canadian Tire/Co-Op parking lot.

Is The City going to keep track of collisions at this location?

Yes. The City reviews the collisions that happen at intersections in Calgary and identifies where changes need to be made to improve safety. Once a location is identified and changes are made at an intersection, The City monitors how the changes improve safety.

How was this change chosen?

An additional lane was selected based on the volume of southbound traffic on Shaganappi Trail and the volume of traffic turning right from Dalhousie Drive on to southbound Shaganappi Trail. In addition to the safety benefits, travel time for motorists through this intersection is expected to be reduced. Congestion in the current configuration (with 2 southbound lanes) extends to north of John Laurie Boulevard which contributes to collisions. 

5 Avenue at 3 Street S.E.

Conversion of ramp to a two-way operation

5 Ave. at 3 St. S.E.

In 2018, The City built a protected pedestrian crosswalk on the east side of the intersection as well as created an exit ramp from 4 Street S.E. onto 5 Ave S.E. to allow traffic to continue to flow over the flyover during the pedestrian walk phase.

These improvements provided a protected pedestrian crosswalk across 5 Avenue as well as decreased traffic delay during the dedicated pedestrian walk phase.

Traffic engineers are now studying these changes to determine what further modifications will be made in 2020.

Colborne Crescent S.W.

Temporary Speed Hump – Colborne Crescent S.W.

As part of a traffic calming pilot project, temporary speed humps will be installed on Colborne Crescent S.W. between 10 Street and 14 Street S.W. in November of 2018.

The speed humps have been built from recycled rubber and are secured directly to the roadway. During the pilot, The City will test the effectiveness of the humps on reducing speeding through the area. We will also evaluate how the rubber humps perform during all seasons and weather types.  

Why was this intersection chosen?

Colborne Crescent between 10 Street and 14 Street S.W. was chosen for the pilot based on feedback from residents about changes in traffic patterns due to the reconstruction of 17 Avenue S.W.

Concerns raised by residents included:

  • Increased volume of traffic on Colborne Crescent
  • Residential land uses adjacent to the roadway

Will The City be monitoring this intersection to see if the changes have made any improvement?

Yes, the changes at the intersection include changes to the timing of the traffic signal.

Is The City going to install this at other locations?

No. At this time, The City will not be adding rubber speed humps at other locations. No new locations will be considered until the effectiveness of this traffic calming device is fully evaluated.

Citizen feedback

To give feedback on the temporary speed humps or ask questions about the pilot, please submit a Roads – Traffic Control Change Feedback Service Request.

Country Hills Blvd N.W. and Shaganappi Trail N.W.

Construction of a third lane north and south through the intersection

country hills bv at shaganappi tr

The intersection of Country Hills Boulevard N.W. and Shaganappi Trail N.W. experiences significant congestion in all directions that varies by time of day. In an effort to enhance operations and safety at the intersection, we will be widening the intersection to provide three traffic lanes in the northbound and southbound directions on Shaganappi Trail.

Project Benefits

  • Over 200,000 passenger hours of delay reduced annually, which represents a 30% overall delay reduction in the a.m. and p.m. peak periods.
  • The proposed improvements are expected to reduce collisions by approximately 25% due to reduced congestion, fewer vehicles stopping, as well as it allows more efficient signal timing operations in all directions. Overall the proposed improvements will enhance traffic operations and safety in the area road network.

Construction is expected to be completed Summer 2019.

Macleod Trail and 5 Avenue S.E.

Pedestrian Safety Improvements

5 Ave. at 3 St. S.E.

The intersection of Macleod Trail and 5 Avenue S.E. has high pedestrian volumes throughout the day, with more than 100 pedestrians crossing per hour on the east side of the intersection. There are more than 1,000 right turning vehicles from northbound Macleod Trail to eastbound 5 Avenue in the afternoon peak period that conflict with pedestrians on the east side of the intersection.

To enhance pedestrian safety and provide a comfortable crossing on the east side of the intersection, the following improvements are being made:

  • A fully protected pedestrian crossing phase on the east side of the intersection.
  • A protected triple right-turn from northbound Macleod Trail to eastbound 5 Avenue S.E.

Benefits
The protected triple right turn will protect pedestrians crossing on the east side of the intersection, and will improve traffic operations on Macleod Trail.

These changes will be implemented on Aug. 25, 2019 and reviewed throughout 2019 and 2020.

 

Country Hills Drive N.W

In order to reduce speed along Country Hills Drive, new traffic safety measures are being implemented in the fall of 2019.

One lane of traffic has been closed in each direction on Country Hills Drive between Country Hills Road and Country Hills View using temporary traffic cones and barriers. These temporary measures will be in place for a couple of weeks to determine their effectiveness.

In October 2019, the closures will become permanent using traffic calming curbs and permanent signage.

country hills bv at shaganappi tr

Memorial and Edmonton Trail N.E.

The City of Calgary has made several improvements on Memorial Drive, near the Edmonton Trail and 4 Street N.E. intersections. These improvements were designed to improve safety and access for people who walk or bicycle between Bridgeland and the river path system, and to improve safety and mobility for people driving into downtown during the morning peak period.

These improvements include a new automated lane reversal system which provides dual westbound left-turns into the downtown core all times of day, except for Monday to Friday between 3 p.m. and 6 p.m., when dual eastbound left-turns are provided to Edmonton Trail.