In my part of the world, a lot of "quiet neighbourhoods" have put up boom gates at strategic entrances. Some are manned by security guards that open for you. In

In my part of the world, a lot of "quiet neighbourhoods" have put up boom gates at strategic entrances. Some are manned by security guards that open for you. In others, you have to swipe your hand over a sensor to make it open for you. It's used mostly for security, but no doubt it helps with keeping traffic-avoiding individuals from going through.