Just how long does it take a 63-tonne semi-trailer truck travelling at highway speed to stop?

This week, RCMP collision analysts and members of the Regina police traffic unit are conducting skid testing with semi-trailer trucks.

The point of the testing program, taking place at the Global Transportation Hub located just outside the city, is to allow officers to develop their skills at determining the speed of commercial vehicles.

Check out the FULL ARTICLE HERE: http://www.cbc.ca/news/canada/saskatchewan/rcmp-regina-police-skid-testing-1.4182864