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Parking Improvements

On-street parking in urban areas is associated with several safety problems.

These include

  • parked vehicles blocking the sight distance of pedestrians, or of drivers entering an intersection
  • vehicles blocking through traffic while trying to enter/exit a parking space
  • conflicts with cyclists (e.g. a car door opened into the path of a cyclist)
  • through traffic colliding onto a parked vehicle or trapped in the kerbside lane which ends suddenly due to parked vehicles.

Several treatment options are available.

Converting angle parking to parallel parking

Sight distance to approaching traffic is blocked by other parked vehicles where drivers are required to back out of angle parking spaces onto a road. Changing angle parking to parallel parking allows drivers to drive forward to leave the parking space with a clearer view of traffic.

Carriageway narrowing

In busy shopping streets, the carriageway can be narrowed, and a clear distinction made between the space for through traffic, and that for parking vehicles (including space for manoeuvring).

Parking bans

Occasionally on-street parking needs to be removed for safety reasons. This is usually achieved by erecting appropriate parking restriction signs, but in some cases may require the installation of physical devices such as bollards.

The Star Rating Demonstrator is a freely available tool with the iRAP online software, ViDA. With the Star Rating Demonstrator, it is possible to explore the impact that this Safer Roads Treatment has on risk.

Treatment Summary


Low to medium

Treatment life

5 years - 10 years

Potential casualty reduction


Case Studies

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