In September 2010 NYC studied the difference between unpainted bike lanes and those painted green. The following results were released in February 2011.
- cars drive in the bike lane
- 16% of the time when it’s unpainted
- 7% of the time when it’s painted green
- bike lanes are obstructed
- 7% of the time when unpainted
- 4% of the time when painted green
Based upon these results, along with those from over a dozen other cities, MUTCD adopted green paint as an approved design for bike lanes to enhance safety.
Sources
- Evaluation of green bicycle lanes to increase compliance and bicycle safety, 2011
- MUTCD approval (adoption) of green paint for bike lanes