Calculating Speed from Yaw Marks
When a vehicle is in yaw it is rotating around a vertical axis through it's centre of mass. The long, curved yaw marks left by the tires on the pavement were characteristic of this motion. If they were striated and of constantly diminishing radius they were of great interest for collision reconstruction because the vehicle's speed could be determined from them.

You don't just keep your vehicle clean so that it looks good anymore. The sensors for your vehicle's safety systems need to be kept clean, especially in the winter, so that they will function as intended. There are six sensors that your newer vehicle may be equipped with and they require maintenance to continue to protect you properly.
There is little doubt in my mind that one of the most popular add on accessories for vehicles is some type of light. While it is possible that some of these lamps are legal for use
I was sitting in a mall parking lot waiting for my wife to do some Christmas shopping and whiling away the time by watching what was going on in the traffic around me. Parking spots were at a premium, people were in a hurry and an incident of road rage played out for everyone to see.
We've had some interesting weather in southwestern British Columbia over the last few days! It's included some less than ideal driving conditions due to ice, snow and rain, often in combination. A common bit of advice heard in the media is "if you don't have to travel, stay home!" Does anyone heed this advice?
When I was in training to become a constable I was told that traffic tickets were issued to change driving behaviour. The inference was that those changes would be for the better. Why is it then that if I watch what is happening around me on the roads bad driving behaviour is commonplace?
Question: My son was ticketed with driving too fast for road conditions. The air and roads were dry so there were no road conditions. He was in an unfamiliar area at night and was in a roundabout which had a steep ditch on one side. As he was unfamiliar with the roundabout, he simply turned into the curb instead of following the curve of the road, and ended up over the curb and slightly down the embankment.