Do Not Endanger and Do Not Restrict
Two basic concepts of road traffic are "endangerment" and "restriction." The law clearly distinguishes between them. Once you understand the difference, you will behave correctly and safely in traffic.
Section 2 of Act 361/2000 Coll. defines:
- Endanger = to force another participant to make a sudden maneuver (brake sharply, swerve)
- Restrict = to force another participant to change direction or speed
Explanation
Endangerment (Section 2, letter l)
Endangerment is a more serious violation. It occurs when your behavior forces another participant to make a sudden or sharp maneuver to avoid an accident.
Examples of endangerment:
- You enter an intersection and an oncoming vehicle has to brake sharply
- You run across the road and a car has to swerve
- You open the car door into the path of a cyclist
- You reverse and endanger a pedestrian behind the vehicle
Endangerment is always an offense and can lead to fines, points, and the revocation of your driver's license.
Restriction (Section 2, letter m)
Restriction is a milder form. It occurs when your behavior forces another participant to change speed or direction, but NOT suddenly or sharply.
Examples of restriction:
- You slowly pull out of a parking lot and another driver has to slow down slightly
- You change into an adjacent lane and a driver in that lane has to slow down because of you
- A pedestrian starts to cross and a car must gradually slow down
Restriction is less serious than endangerment, but in some situations, you must not restrict other drivers, such as when changing lanes.
Yielding (Section 2, letter q)
Yielding means the obligation NOT TO START driving, perform a driving maneuver, or CONTINUE in them if the driver who has the right of way would have to suddenly change direction or speed.
In other words: if someone is driving on the main road, you must wait for them to pass before proceeding. They must not have to slam on the brakes or swerve because of you.
Yielding = I wait until it is clear, and then I go.
Important: "yielding" pertains to situations such as intersections, entering a road, or roundabouts. If a participant with the right of way has to react sharply to your actions = you have endangered them.
Common mistakes
How to distinguish between endangerment and restriction - a simple test:
Ask yourself: 'Did the other driver have to react SUDDENLY?'
- If YES (braked sharply, jerked the steering wheel) = Endangerment
- If NO (only slowed down slightly, moved a bit) = Restriction
Common mistake in the exam:
- Students confuse the order of severity. Endangerment is always WORSE than restriction.
- "Do not endanger" does NOT mean that no one can slow down because of you – it means they should not have to significantly and suddenly change their driving.
How to remember it
Practical summary:
The difference between "endanger" and "restrict" is easily recognized in practice:
- If a driver had to brake sharply or swerve because of you → you endangered them (serious)
- If a driver only had to slow down a bit or slightly change direction → you restricted them (less serious)
Practical test: When you merge back after overtaking and the driver behind you has to step on the brakes, you endangered them. If they just lifted their foot off the gas, you restricted them. Both are prohibited in this situation.
When yielding, always wait for the other driver to pass safely. Do not try to "make it" – most accidents at intersections occur because of this.
What the law says
l) nesmět ohrozit znamená povinnost počínat si tak, aby jinému účastníku provozu na pozemních komunikacích nevzniklo žádné nebezpečí,
m) nesmět omezit znamená povinnost počínat si tak, aby jinému účastníku provozu na pozemních komunikacích nebylo nijak překáženo,
q) dát přednost v jízdě znamená povinnost řidiče nezahájit jízdu nebo jízdní úkon nebo v nich nepokračovat, jestliže by řidič, který má přednost v jízdě, musel náhle změnit směr nebo rychlost jízdy,
Verbatim text of Act No. 361/2000 Coll., on road traffic, as in force on 1 January 2026. Quoted in Czech — the Czech wording is the binding one.
Check what you remember
Five questions from the official bank. The answer appears only after you choose — try to recall it first, that is what makes learning stick.
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Question 1 of 5
A vehicle entering a road:
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Question 2 of 5
A bus marked "School bus" has stopped at a designated stop. The driver of a vehicle following behind:
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Question 3 of 5
A vehicle is passing an obstruction on the road. Must the driver give a signal indicating a change of direction?
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Question 4 of 5
After overtaking another vehicle, you intend to pull in front of that vehicle. Must you give a signal indicating a change of direction?
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Question 5 of 5
A motor vehicle has broken down in a tunnel and become immobile. As the driver of such a vehicle, you must not: