Researchers have created a map pinpointing the location of every accident involving a car door being opened on a cyclist in New Zealand in the last five years.
The online map was created by laying data from New Zealand Traffic Crash Reports from 2007 - 2011 on top of Google Maps, and is believed to be world first.
The University of Otago injury prevention researchers created the tool with the idea of helping city planners and traffic engineers identify dangerous routes for cyclists.
Director of the university's Injury Prevention Unit, Professor Hank Weiss, said the map - the first to cover an entire country - would let cyclists know where their local "dooring" hazard areas were.
"By highlighting particular problem areas we can look at what kind of solutions can make these streets safe and convenient for all road users," Weiss said.