Advisory Cycle Lanes Increase Risk of Injury by 34%
16th December 2020
An academic study in London shows that painted advisory cycle lanes increase the risk of injury to cyclists by 34%, as against no infrastructure at all.
The research by Thomas Adams and Rachel Aldred, titled 'Cycling Injury Risk in London: Impacts of Road Characteristics and Infrastructure', also found that protected infrastructure reduces the chances of injury by 40-65%.
The key findings of this work are:
- The risk of injury increases threefold at junctions
- B-roads are relatively risky compared with both A-roads and residential roads
- Kerb-separated bike lanes reduce the odds of injury by 40%
- Stepped cycle tracks reduce the chances of being hurt by 65%
- Mandatory painted cycle lanes provide no safety benefit but neither do they increase the risk of injury
- Advisory cycle lanes increase the risk of injury by 34%
- Bus lanes reduce the risk of injury slightly
Safety in Numbers
The researchers were able to confirm the existence of a 'safety in numbers' effect, with a doubling of cyclists resulting in a 13% reduction in the chances of being injured.
A higher density of pedestrians increases the risk of injury (by 6%), as does a greater volume of traffic (but only marginally).
The researchers conclude that cycle infrastructure on main roads and at junctions must have physical protection, not just paint.