The increase in commuter traffic at the intersection of Crowchild Trail and 24 Avenue N.W. has resulted in severe back-ups, leading The City to seek ways to reduce the amount of congestion in this area.
Left turn restriction
After careful evaluation, The City implemented a restriction of the left-hand, northbound turn from Crowchild Trail to 24 Avenue N.W. during the morning rush hours (6 a.m. to 9 a.m.) on weekdays after seeing positive results from a trial that ended in late 2014.
Restricting the left-hand turn allowed for a longer green signal time for the heaviest amount of traffic headed southbound on Crowchild Trail N.W. and greatly improved traffic flow.
As part of the ongoing Traffic Operational Improvements program, and to further improve the intersection of Crowchild Trail and 24 Avenue N.W., The City is implemented the following changes.
- To provide additional capacity for left turns and to reduce lengthy delays and long queues dual left turn lanes from eastbound 24 Avenue N.W. onto northbound Crowchild Trail.
- Construction of “smart” right turn lanes from Crowchild Trail to 24 Avenue N.W. will help reduce vehicle speeds and provide motorists with a better view of the traffic stream they are about to enter. This will also provide motorists with better visibility of pedestrians crossing the right turn channel, making the intersection safer for pedestrians.
- 24 Street N.W. intersects with 24 Avenue N.W. just east of Crowchild Trail. To improve operations at this junction, a traffic island was constructed at the intersection of 24 Street N.W. and 24 Avenue N.W. to restrict access to southbound Crowchild Trail.
- Due to a history of collisions at this intersection a signal advance warning flasher was installed on southbound Crowchild Trail. This advance warning flasher alerts motorists that the traffic signal ahead is either about to change from green to red or is red. This will help improve motorist safety at this intersection.
Provide your feedback
Please use the 311 eService Request below to give your feedback.
eServices - Traffic control change feedback
- What determines a "long" wait time at traffic signal, in traffic terms?
- Why is The City doing this work?
- How much will this cost?
- Where can I find information to re-route my commute?
1. What determines a “long” wait time at traffic signal, in traffic terms?
Typically a “long” wait time is determined by how many light cycles a vehicle would be at a light for. In traffic terms, a vehicle should only be in queue at a light for one cycle. In the instance of Crowchild Trail at 24 Avenue N.W., commuters were waiting much longer than one light cycle before being allowed to continue specifically during rush hour times.
2. Why is The City doing this work?
The City is always examining various locations around Calgary where traffic congestion can be reduced through signal adjustments and lane improvements. As part of the Traffic Congestion Reduction program the intersection of Crowchild Trail and 24 Avenue N.W. was identified as an intersection where improvements could be made.
3. How much will this cost?
Implementing these changes to this intersection is the most cost effective option The City considered. A typical traffic interchange costs approximately $50 million, versus these improvements which will cost a small percentage of a full interchange.
4. Where can I find information to re-route my commute?
For more information about traffic please visit the Calgary traffic report page.