Accident Investigation Calculator

Pole or Narrow Crush

Please read the following instructions carefully.

This calculator assumes that no crush is produced by any speed below 5 mph.

The equation used is as follows:

Fill in the two boxes below and click the Calculate button.

Mass of car (kg):

Crush depth (metres):

Calculate

Equivalent barrier speed =

Clear all values

References

Narrow impact equation comes from Nystrom & Kost, SAE 920605.

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