
Visibility Blocker
An object blocking your line of sight — a truck, fence, bush. Anything could be behind the blocker.
What is it
A visibility blocker is anything that obstructs your line of sight: a truck, bus, parked van, fence, bushes, or a hill crest. Behind it could be a pedestrian, a child, or a turning vehicle. What you can't see is the most dangerous thing on the road.
How it happens
A rider travels alongside parked cars or behind a truck. The view is blocked. A car, pedestrian, or obstacle suddenly appears from behind the blocker. Reaction time — minimal. Most urban crashes involve restricted visibility.
How to reduce the risk
- Behind every blocker, danger ALWAYS exists — ride as if it's there
- Reduce speed near any visibility blocker
- Shift lane position for a better view (but not into oncoming traffic)
- Cover the brake — finger on the lever, ready to stop
Liked it? Share with fellow riders
Related terms
Perception Error
Misjudging speed, distance, or the intention of another road user. The number one cause of crashes.
Target Fixation
Involuntarily staring at an obstacle instead of the safe path — and riding straight into it.
Blind Spot
An area around a vehicle where the driver cannot see you — not in mirrors, not in peripheral vision.
Left Turn Danger
A car turns left across your path — the most common type of motorcycle collision.
Car Door Opening
A driver or passenger opens a parked car door directly into a motorcyclist's path.
Articles on this topic

«8 Common Braking Mistakes That Most Motorcyclists Make—And How to Avoid Them»
Discover the top 8 braking mistakes motorcyclists make and how to fix them. Learn techniques to master emergency braking and reduce your risk of accidents.

How to evade most common motorcycle city crash – Left turn. Blocker Variation
What is the most dangerous city situation for a new motorcycle rider? Left turn with visibility blocker. Learn how to see them, avoid them, and ride smarter.

Visibility Blocker concept
Discover how everyday obstacles—trucks, tinted cars, or even your own visor—turn safe rides into sudden disasters. Learn the strategies to see further, react faster, and stay ahead of hidden dangers. Don’t let the road surprise you. Click to read more and ride smarter.
Nebachiv Book and App — in progress
Get early accessNext term

Target Fixation
Involuntarily staring at an obstacle instead of the safe path — and riding straight into it.