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Equations

Injuries and Damage as they relate to speed

What happens to the passenger?

Braking

Reaction Time

Practice problems

What happens to the passengers in an accident?

A car crashing into a pedestrian dummy.

It has been found that above 65 kph (kilometers per hour) travel speed, the chance of being in a vehicle accident doubles for every 5 kph increase in speed (University of Adelaide). Thus, for a vehicle traveling at 70 kph the chance of being in a fatal accident doubles; when traveling at 75 kmh the chance increases by a factor of four. Traveling at lower speeds corresponds to a reduction in fatality rates.

Two main factors contribute to the fatality rate and speed, they are braking distance and reaction rate.

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