#173 1970 · Netherlands (driver training curriculum) · Road safety / driver educationredesign-the-moment
The Dutch fixed cyclists getting hit by car doors by changing which hand opens the door
the problem
A safety behavior that depends on someone remembering to do it deliberately — check over your shoulder before opening a car door — fails constantly in practice, because remembering is exactly the kind of effortful, easily-skipped step that habit and hurry override
background
'Dooring' — a parked car's door opening directly into the path of a passing cyclist — accounts for 10–20% of bicycle crashes in many cities worldwide, and the standard prevention advice is simply an instruction: look before you open your door. Instructions like this fail at scale not because drivers don't understand them, but because checking over your shoulder is an extra, effortful step that competes with the automatic habit of just reaching for the door handle with the hand closest to it and pushing — under normal conditions, with no cyclist visibly present, there is no natural trigger reminding a driver to look.
Facing high road casualty rates in the 1970s, the Netherlands built driver training around a physical mechanism instead of a memorized instruction: opening the car door with the hand farther from it — the right hand for a left-hand-drive car — rather than the near hand. That single substitution forces the body to twist across the torso to reach the handle, which naturally rotates the head and shoulders toward the rear window and side mirror, producing the safety check as an unavoidable physical side effect of the motion rather than as a separate step the driver has to remember to add.
the move
Rather than trying to make drivers remember to look, the 'Dutch Reach' redesigned the door-opening motion itself so the checking behavior is mechanically inseparable from opening the door at all — a driver physically cannot use the technique without their body turning toward the direction a cyclist would be approaching from, removing the failure mode of forgetting entirely.
the payoff
The technique has been standard in Dutch driver training and licensing exams since the 1970s, and the Netherlands has some of the lowest cyclist casualty rates in the world; the method has since been formally added to driver's manuals and licensing materials in Massachusetts (2017), multiple Australian states including Victoria (2012), Washington State (2019, in seven language editions), and other jurisdictions specifically citing dooring-prevention as the rationale.
what came after
The Dutch Reach is a standard case study in behavioral safety design and 'nudge' literature for converting a rule that depends on memory into a physical mechanism that enforces the desired behavior automatically, and continues to spread through driver-education systems internationally as bicycle commuting increases and dooring incident data becomes more visible to transportation regulators.
references
- [1]The AA — Dutch Reach car door opening methodThe AA, 2024theaa.com
- [2]Dutch Reach Project — MassRMV Press Release: Dutch Reach in Driver's ManualDutch Reach Project, 2017dutchreach.org