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Traffic Calming Measures

Traffic calming refers to a set of strategies employed to reduce traffic speed and volume on streets, improving safety for pedestrians and cyclists and enhancing the quality of life in neighborhoods. This concept is built on the principle that streets should not only serve as pathways for vehicles but also as spaces for social interaction and community activities.

Methods of Traffic Calming

Various methods are used to achieve traffic calming, each designed to influence driver behavior and vehicle flow.

Physical Design

  1. Speed Humps: These are raised areas of a roadway designed to slow down vehicles. Unlike speed bumps, which are more abrupt, speed humps are gentler and cover a longer distance.

  2. Chicanes: These are curb extensions or islands that create a serpentine path and force drivers to reduce speed as they navigate through the staggered barriers.

  3. Roundabouts: Circular intersections that allow for continuous flow of traffic, reducing the likelihood of high-speed collisions by forcing vehicles to slow down and yield.

  4. Traffic Islands: These are raised areas placed on the road to channelize traffic and can be used to protect pedestrians crossing the street.

Road Surface Markings

Road surface markings, such as painted lines, can visually narrow lanes and create a psychological effect that encourages drivers to reduce speed.

Traffic Use Regulations

  1. Low Traffic Neighbourhoods: These are areas where through-traffic is discouraged by using barriers, such as planters or bollards, to create filtered permeability, allowing only pedestrians and cyclists to pass through certain points.

  2. Radar Speed Signs: These signs display the speed of approaching vehicles, alerting drivers if they are exceeding the speed limit and encouraging them to slow down.

Closures

Closures like diagonal diverters, half closures, and full closures are designed to restrict vehicle movements in certain directions, thereby reducing cut-through traffic.

Benefits of Traffic Calming

The primary goal of traffic calming is to improve road safety. By reducing vehicle speeds and volumes, the risk of collisions decreases significantly. Additionally, these measures often enhance the quality of urban life by making streets more pleasant and safer for pedestrians. They can also encourage cycling by creating a safer environment for cyclists.

Traffic calming measures can also prevent rat running, where drivers take shortcuts through residential areas to avoid congested main roads, by creating disincentives for using these routes.

Challenges and Considerations

Implementing traffic calming measures requires careful planning and community input. It's important to balance the needs of local residents with those of commuters. Additionally, while measures like sneckdowns, which are naturally formed snow banks that show where vehicles do not travel, provide insight into potential traffic calming areas, they require adaptation to local contexts and climates.

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