Why is an intersection improvement needed?
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The intersection of Grassie Boulevard and Molson Street experience traffic volumes which exceed the capacity of the existing 4-way stop control. As a result, there are significant delays and long line-ups of vehicles approaching the intersection, particularly during the morning and afternoon peak hours. This results in increased vehicle emissions, fuel consumption, and driver frustration.
Why a Roundabout and not a traffic signal?
Reasons that a Roundabout was chosen for this intersection include:
- Collision severity is generally higher for traffic signals as compared to roundabouts due to lower vehicle operating speeds for roundabouts.
- Roundabouts are more environmentally friendly; vehicle delays and stops are greater for traffic signals resulting in higher vehicle emissions and fuel consumption.
- Traffic signals result in higher noise levels associated with vehicles starting and stopping.
- Roundabouts offer opportunities for enhanced neighbourhood aesthetics and gateway features.
What is a Roundabout?
Last update: 08.11.2012
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