Multiple-vehicle collisionWorldwide
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454. Multiple-vehicle collision
A multiple-vehicle collision is a traffic accident involving three or more vehicles. It can occur when one collision triggers additional impacts, especially in heavy traffic, poor visibility or slippery conditions. These crashes can be difficult to assess because several vehicles may be damaged and responsibility may involve more than one driver. After a multiple-vehicle collision, drivers should make the scene safe, assist injured people, contact emergency services when necessary and carefully document the vehicles, damage and circumstances.
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What is a multiple-vehicle collision?
A multiple-vehicle collision is a traffic accident involving three or more vehicles.
What is a chain collision?
A chain collision occurs when an initial crash leads to additional vehicles colliding one after another. It is a common type of multiple-vehicle collision.
What commonly causes multiple-vehicle collisions?
Common factors include tailgating, sudden braking, poor visibility, slippery roads, high speed and heavy traffic.
What should you do after a multiple-vehicle collision?
Protect yourself and others from further danger, check for injuries, contact emergency services when necessary and document the accident. Follow local rules on moving vehicles and reporting the crash.
Should you take photos after a multiple-vehicle collision?
Yes, when it is safe. Photos of the vehicle positions, damage, road conditions, signs and surrounding area can help establish what happened.
Who is responsible in a multiple-vehicle collision?
Responsibility depends on the circumstances. More than one driver may be partly responsible, and insurers, police or courts may need to reconstruct the sequence of impacts.

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