I am interested. You seem to be espousing a belief (that I hope I don't get wrong): "driving above 20mph in a city environment gives significant economic benefi

I am interested. You seem to be espousing a belief (that I hope I don't get wrong): "driving above 20mph in a city environment gives significant economic benefits, and should not be curtailed". In roads, between cities, the benefits are obvious (or at least, I agree with you that they are substantial). So I expressed the belief you seem to hold with an added hypothesis of 'city environment'. Do you agree with the belief as I quoted? Was I fair? If so, why do you think so? I just tried some different paths in my city (currently with very low traffic) in google maps. The greatest average speed I was able to find was 26 mph. The city seems to work fine and have good economic development. I used >>> distance_in_km/((time_in_minutes)/60) * 0.62 (is this wrong? I don't think so) Might be the case that I just lack intuition, but the advantages of much higher speeds inside the city limits do not seem obvious from an economic standpoint. I would indeed hesitate if I believe that this would have any significant economic cost. A small reduction in productivity can be very costly in human suffering. As to 'my side', I am not saying only that I want to reduce accidents. I am saying that I want to reduce accidents while increasing the amount of time people can safely spend outdoors and while increasing the activities that they can do outdoors. The idea that a significant part of our cities must be (or simply is) high speed road is a choice, and I think it merits discussion.