Median Crossing Upgrade

A median crossing is a section of roadway provided between a divided carriageway to allow cross median movements and U-turns. A median crossing upgrade may provide deceleration and acceleration lanes reducing the risk of rear-end and opposing vehicle type crashes.

A wide shoulder or deceleration lane will allow slowing vehicles to manoeuvre out of the through lane. An acceleration lane will allow vehicles to merge with through traffic on the roadway.

  • Reduction in intersection crash types.
  • Improves local access.
  • Provides an additional emergency access point leading to improved emergency service response times.
  • Additional road space may be required.
  • If the median crossing is used to access a side road, then intersection considerations for cross movements (such as visibility and stopping distance) will apply.
  • Ensure roadside hazards are removed or sufficiently protected.
  • Drainage structures and steep slopes within the median can increase risk. The slopes should be as flat as possible. If the slope cannot be made traversable, it should be protected by safety barrier.

  • Benefits

  • Reduction in intersection crash types.
  • Improves local access.
  • Provides an additional emergency access point leading to improved emergency service response times.
  • Implementation issues

  • Additional road space may be required.
  • If the median crossing is used to access a side road, then intersection considerations for cross movements (such as visibility and stopping distance) will apply.
  • Ensure roadside hazards are removed or sufficiently protected.
  • Drainage structures and steep slopes within the median can increase risk. The slopes should be as flat as possible. If the slope cannot be made traversable, it should be protected by safety barrier.
  • Did you know?

    Just a small reduction in vehicle speeds can dramatically increase the chance of a child surviving a collision.

    Tell me more

    Latest Case Studies

    See practical examples of how deaths and serious injuries have been prevented.

    Read more

    Related Images

    Treatment Summary

    Costs
    Low to medium
    Treatment life
    5 years - 10 years
    Effectiveness
    25-40%

    References