Question

A five legged intersection has safety issues. in 2018, the number of crashes reported was 48 and the average 24 hour volume entering the iintersection was, going clockwise around the intersection - 980, 1560, 1230, 900 and 1435 vehicles Determine the crash rate per million vehicles.

Answer 1

The crash rate is 22 vehicles per 1 million vehicles

Step-by-step explanation:

In this question, we are asked to determine the crash rate per million vehicles.

Crash rate is calculated using average crash frequency.

The crash rates are calculated based on the number of crashes per million vehicle miles travelled in a year.

Mathematically;

crash rate = (48 * 1,000,000)/ [(980 + 1560 + 1230 + 900 + 1435)* 365]

= 48,000,000/(6105*365)

= 21.54 approximately 22