AI quick summary
- The right-hook, left-cross, door prize, and drive-out account for the majority of urban car-bike crashes. Each has a specific counter.
- Master emergency braking — front brake hard, weight back, hips behind saddle — before you need it. It shortens stopping distance by 40% or more.
- Road-surface hazards (wet paint, leaves, drain grates, tar snakes) are predictable. Scan three to five seconds ahead and commit to a line early.
- Situational awareness beats reaction time. A drifting driver gives one to two seconds of warning if you are watching.
/ 01
The four crash archetypes
Urban cycling crashes cluster into a small number of repeatable patterns. Once you can name them as they develop, you can usually ride out of them.
The right-hook is a vehicle turning right across your path. The left-cross is an oncoming vehicle turning left through your lane. The door prize is a parked driver opening into you. The drive-out is a vehicle entering from a side street, driveway or gap in traffic directly into your path.
Common urban crash archetypes and counters
| Archetype | How it happens | Counter |
|---|---|---|
| Right-hook | Vehicle passes then turns right across you | Take lane; never ride in the right-turn gap |
| Left-cross | Oncoming vehicle turns left into you | Slow, make eye contact, cover brakes |
| Door prize | Parked driver opens into your path | Ride 1 m outside doors, always |
| Drive-out | Vehicle pulls out from side street | Scan driveways, slow for sight-line gaps |
| Sideswipe | Vehicle passes too close at speed | Take lane on narrow roads |
/ 02
Emergency braking — the skill that saves you
Maximum braking is front-brake dominant. Roughly 70 to 80 percent of your stopping power is in the front brake, yet most cyclists instinctively grab the rear — which skids and offers almost no deceleration.
The technique: shift your weight back, drop your hips behind the saddle, squeeze the front brake progressively hard, and trail the rear brake lightly. Modulate so the front never quite locks. Practise this on a clean, dry, empty road until it is automatic.
/ 03
Swerve or brake — choose before the moment
In an emergency you will not have time to choose. Decide your strategy based on speed and surface. At low speed on a clean surface, swerving around a hazard is often faster than braking to a stop. At higher speed or on a marginal surface, braking is almost always the safer call.
A useful drill: at a familiar speed, on a familiar road, note the distance it takes you to stop dead. That is your personal safety envelope. Anything inside that envelope, you cannot avoid by braking — you must steer around.
/ 04
Reading road surface hazards
Wet paint, wet leaves, metal drain grates, tram tracks, tar snakes in hot weather, loose gravel on corners — the catalogue is finite and learnable. Scan three to five seconds ahead of your front wheel and commit to your line early.
If you cannot avoid a slippery surface, ride it out straight, off the brakes, with your weight neutral. Braking or turning on a wet metal grate is how cyclists end up in the emergency room.
/ 05
Reading drivers before they move
Drivers telegraph their moves. A car drifting inside its lane is about to do something — turn, stop, or open a door. A front wheel turned towards your lane at a junction is a driver about to pull out. Eye movement in a parked car's mirror means a door is about to open.
Read these signals actively and you will gain one to two seconds of warning. That is enough to brake, swerve, or simply come off the pedals and prepare. Most crashes are not avoided by reaction — they are avoided by anticipation.
/ 06
When you cannot avoid the crash
If a crash is unavoidable, the goal changes: minimise energy transfer. Brake as hard as you can right up to impact. Unclip if there is time. Get your hands on the bars, not off them — collarbones break from outstretched arms.
Aim, if you can, for the softest part of whatever you are about to hit. A glancing impact absorbs far less energy than a perpendicular one.
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