Cycling Safety: Road Positioning, Visibility, and Crash Prevention

/ 01

Road positioning — primary and secondary

There are two riding positions on the road: secondary (about 1 meter from the left edge, in right-side traffic countries) and primary (center of the lane, also called 'taking the lane').

Primary position (center of lane) is your SAFEST position when: the lane is too narrow for a car to safely pass you within the same lane (most urban lanes), you're approaching a junction or roundabout (prevents being passed and then turned into), there's a hazard in the secondary position (debris, drain covers, parked cars), or you're moving at traffic speed (there's no reason for a car to pass).

Secondary position (1 meter from the edge) is appropriate when: the lane is wide enough for safe passing (a car can give you 1.5m clearance within the lane), the road is clear, and you're traveling below traffic speed.

The common mistake: riding too far right (in the gutter). This encourages dangerous close passes (drivers think they can squeeze through), puts you in the debris-filled road edge, and reduces your visibility. Ride assertively in the secondary position — far enough out that a driver must make a conscious decision to pass, not just drift past.

/ 02

The door zone

The door zone is the area within ~1 meter of parked cars — the space a suddenly opened car door occupies. A dooring (hitting an opened door) at cycling speed is often fatal. The door zone is the single most dangerous place to ride on an urban road.

Rule: never ride within 1 meter of parked cars. If the parking lane narrows the road so that riding outside the door zone puts you in the traffic lane, take the lane. It's better to have an angry driver behind you than a door in your face.

Watch for signs: a car that just parked (brake lights, someone getting out), a car with someone in the driver's seat (they may open the door), or a taxi/Uber (passengers open doors without looking). Assume every parked car's door will open.

/ 03

Visibility — be seen

Drivers hit what they don't see. In daylight: wear bright/contrasting colors (high-vis yellow or orange is most visible against most backgrounds), use a flashing rear light even in daytime (a flashing light is more noticeable than a steady one), and ride predictably (straight lines, not weaving).

In low light/dark: front and rear lights are legally required and practically essential. A front light (200+ lumens) both makes you visible AND lights the road ahead. A rear light (50+ lumens, flashing) makes you visible from behind. Reflective elements (ankle bands, vest) are extremely effective — the moving reflective ankle band is one of the most visible things at night because the motion catches the driver's eye.

Position yourself where drivers look: in the left tire track of the car ahead (not in the blind spot to the left of a car), at the front of the queue at traffic lights (in the advanced stop line / bike box if available), and never in a truck's blind spot (never pass a large vehicle on the left at a junction — the most common cycling fatality).

/ 04

Anticipation and defensive riding

The key skill: anticipate what might happen, not just what's happening. Scan 50–100 meters ahead for: pedestrians stepping out, cars pulling out of side roads, parked cars with occupants, debris, drain covers, and turning vehicles. When you see a potential hazard, position yourself to avoid it before it happens.

Eye contact: at junctions, make eye contact with waiting drivers. If they've seen you, they (usually) won't pull out. If you can't make eye contact (tinted windows, distracted driver), assume they haven't seen you and prepare to stop. The assumption 'they've seen me' is how most junction crashes happen.

Listen: don't wear noise-canceling headphones (or keep one ear free). Hearing a car approaching from behind, a siren, or a shout gives you seconds to react. Your ears are a safety system — don't disable them.