Leisesturm

Of course. How much enforcement? In my city, riding the Light Rail system requires fare purchased through a variety of means, including Smartphone accounts. Some riders complain constantly about the lack of enforcement in checking fares. Not true. Fares are checked fairly regularly, and the point isn't to keep every train in the station for 10 minutes while every passengers fare is checked! You would cripple the system doing that, it would move no one anywhere, and then the complaints would really begin. When our city began their 'Vision Zero' campaign (Zero pedestrian deaths by 20/20) they indeed had plainclothes pedestrians jaywalking to see if motorists would yield. Those who did not would be ticketed. This was RANDOM. It had to be. There aren't the resources to have more than a few stings going on at any one time. For something like bicycle passing distance though you have to have the acculturation in the target population. Maleochs is quite right, those drivers who are already passing cyclists with generous margins don't need to be told to do it. Those who don't won't be convinced until they kill someone and go to prison. Make sure that prison happens, no exceptions. There is your enforcement. After the fact. Yes it would suck to be the person that makes that driver see the light but, as I understand it, there are compensations. All the virgins you can handle (up to a limit of 72 don't be greedy) are waiting in Heaven if you are killed doing the good work of Motorist Enlightenment.