Right turn island safety improvements
2022 Locations for changes to right turn islands
High entry angle right turn will be added at:
- Eastbound Heritage Drive turning to southbound Heritage Meadows Way S.E.
- Eastbound Heritage Meadows Way turning to southbound 11 Street S.E.
- Westbound Heritage Meadows Way turning to northbound 11 Street S.E.
- Northbound Blackfoot Trail turning to eastbound Heritage Drive S.E.
- Northbound 36 Street turning to eastbound Memorial Drive S.E.
- Eastbound Memorial Drive turning to southbound 36 Street S.E.
Dual lane signalized right turns will be added at:
- Southbound Blackfoot Trail turning to westbound Heritage Drive S.E.
- Westbound 39 Avenue turning to northbound Barlow Trail N.E.
Merge lane will be added at:
- Northbound right turn merge lane from Metis Trail turning to eastbound 80 Avenue N.E.
The City of Calgary continuously reviews collisions at intersections to identify where changes can be made to improve traffic safety. These reviews have identified some right-turn islands throughout the city that can be changed to improve traffic safety.
The options for improving a standard right-turn island include changing it to:
High entry angle right turns
A high entry angle right turn slows traffic. It also changes the angle motorists who are approaching the right-turn need to look to see on-coming traffic in the lanes that they will be turning in to.
McKnight Boulevard and Edmonton Trail N.E.
Dual lane signalized right turn
A dual lane signalized right turn adds another turning lane for motorists. It also includes a traffic signal indication for right turning traffic with a separate traffic signal phase when they can turn.
Southland Drive and Blackfoot Trail S.E.
Merge lane right turn
A merge lane provides a longer distance for motorists making the right turn to merge into traffic after they have completed a right turn.
16 Avenue and 68 Street N.E.
Reviewing right turns for improvements
To decide what type of change needs to be made to a right turn island, we look at:
- The types of collisions from the collision review.
- The volume of traffic making the right turn and the volume of traffic that would be conflicting with the right turn.
- The type of vehicles that will be making the right turn.
- The distance a motorist needs to travel to get to the next intersection (or on/off ramp) after the right turn.