Ironically, you are both in violent agreement.
The issue is speed....I haven't been able to find one study that suggests that a small increase in speed doesn't increase traffic deaths. One of the reason is stopping distance. A measly extra 10mph requires a 40% increase in stopping distance.
I don't see how slowing down traffic on the Malihat is a bad thing and it seems to me that these cameras would be a good way of doing it.
Stopping distances are always a major factor when engineers look at speed limits etc. Thats why there are places where large trucks are restricted to certain speeds or certain travel lanes etc.
Heres a very good article that talks about how speed limits are calculated
Dispelling speed limit myths
Before explaining why interstate speeds are trending upward, let’s first expunge some misconceptions. Here are four commonly held, but inaccurate statements about speed limits:
- Lowering a posted speed limit will slow down traffic.
- Lowering a posted speed limit will increase safety and decrease the number of crashes.
- Raising the posted speed limit increases traffic speed.
- Drivers will always travel at 5 mph over the posted speed limit.
There is no guarantee that a speed limit will have any effect on driving behaviors. The fact is, when driving, most motorists choose a speed in which they personally feel both comfortable and safe.
As cars have evolved to go faster and be safer, so too has the inclination for drivers to increase speeds on open roads and rural interstates.
Simply, a speed limit sign should not dictate speed. It should reflect how drivers are actually behaving on the road. When you want drivers to slow down, you change the road through traffic calming measures like speed bumps or even design narrower roads, both of which make speedy drivers less comfortable.
Edited by rjag, 11 November 2018 - 08:54 AM.