The door zone is the area next to parked cars where a suddenly opened door can strike a passing cyclist. Proper technique and awareness reduce the risk of serious crashes. The Dutch Reach is simple and effective.
What is the door zone?
When you park along the road, a risk area is created beside the car. A cyclist at speed may not have time to react if a door swings open. In narrow, busy streets it’s vital to check before opening doors.
| Situation | Risk | Action |
|---|---|---|
| Parking along a bike lane | Cyclist in the door zone | Check mirrors and shoulder, open controlled |
| Child in rear seat wants out | Sudden door opening | Keep rear doors locked until clear |
| Night and poor visibility | Slower reactions by others | Use interior light, open slowly |
Dutch Reach – the technique
Dutch Reach means using the hand furthest from the door when opening it. This rotates your torso and makes you naturally look over your shoulder for cyclists and pedestrians.
- Grab the door handle with the hand furthest from the door
- Check mirrors and glance over your shoulder towards traffic
- Open the door a little, pause, then open in a controlled way
- Hold the door firmly so wind or passing vehicles don’t fling it open
Roles: driver, front passenger, rear seat
Everyone in the car should contribute to safe door opening.
- Driver: instruct passengers, especially children, before doors open
- Front passenger: use Dutch Reach and check mirrors plus shoulder
- Rear seat: adults take responsibility; children wait for a clear signal
Practical city tips
- Park with a margin to the bike lane where possible
- Look for bike symbols and arrows on the road
- Use parking lights in the dark when stopping at the kerb
- Consider using the other door if traffic is close on the right