Road Segment Crash Rate Calculator

Posted on with tags: traffic engineering

I am reading Part Two, Chapter 4.3 of tutorial. It has an exercise to write a js deposit calculator. I often use a spreadsheet file to calculate road segment crash rate. The equations are not difficult, but it is easy to make mistakes.

The equation below is from this FHWA link.


Here is a js version I wrote. The code is similar to the deposit calculator.

Road Segment Crash Rate Calculator

AADT (Annual Average Daily Traffic)
Segment Length (miles)
Crash Number In 3 Years
Crash Number in 1 Year
VMT (Vehicle Miles Traveled)
Segment Crash Rate