Information related to vehicle speed and speeding.
I had an interesting conversation with a driver at the roadside one morning. I had stopped him for driving at 107 km/h in the posted 80 km/h zone entering a high collision area on Highway 4 east of Port Alberni. Speeding is a particular problem as a primary contributor to collisions there.
I enjoy tinkering with electronics in my spare time and was pleasantly surprised to come across instructions on how to build my own speed camera system using a Raspberry Pi and Python based software that was freely available to download and use. You can probably create the whole system for less than $100!
This is a video from SAAQ in Quebec produced for a speed and distracted driving awareness campaign in 2020. The speed display in the video is showing real time traffic speeds from a pole mounted radar unit at the filming location. It's a striking visual reminder of how fast we often drive through a school zone.
This is a case where Timothy Drewcock appealed his conviction for speeding in traffic court. His position is that the JJP should not have admitted police radar evidence because there was no evidence explaining when and how the radar instrument used in the case was tested and what tests were made.
There's a little known secret that can be used to stop speeding in your neighbourhood. Make the roads more narrow! A wide, empty street just entices drivers to increase their speed. They will unconsciously readjust their perceived risk and drive at a speed based on how comfortable they feel driving on your street.
I found this observation recently: "Speed limits are set by drivers voting with their feet. That’s a problem for everyone else on the street." That's fine if you are a driver, but what if you are some other form of road user such as a pedestrian or cyclist? You don't have a vote in the setting of the limit unless you are a collision statistic.
Question: 
Have you ever touched on the subject of drivers doing 5 to 15 km/h below the posted speed limit? Slow driving is extremely annoying. The passing lanes are usually not available due to Murphy's Law, and the 4 lane stretches are great when you find one, but never when you need them!
This week on Twitter the question was posed about why we have cars that are capable of traveling at speeds significantly in excess of our posted speed limits? As luck would have it, one of the mailing lists that I subscribe to contained an article with a link to this video:
In cities, transportation agencies have long understood that motor vehicle speed plays a key role in fatal and serious crashes, and have sought to reduce speeds through design and regulation in order to save lives.
The Speed Management for Safety site was created by the Institute of Transportation Engineers as a resource for all transportation professionals seeking to safely manage speeds.