By the way, the rational for putting speed limits is quite solid and i know one engineer who worked on that who told me the average speed in Paris around and du

By the way, the rational for putting speed limits is quite solid and i know one engineer who worked on that who told me the average speed in Paris around and during rush hour actually increase (by roughly 5 km/h) despite lowering the speed limit by 10 km/h. Outside those hours the speed limit setup did decrease the average speed (shocking!), but for commuters (who felt strongly against this new limitation) the overall change was actually a net positive (less hour stuck in traffic), and for car-owning residents (who where split on this) it was a net negative.