Los Angeles tried to fight prostitution in a unique and bizarre way: by banning right turns onto residential streets at night. It's an obscure traffic fix—that is, making it illegal to make a right turn, off a main road, at night

The idea was to discourage people from picking up a prostitute and pulling into a residential neighborhood to transact business.

"We used to stop cars all the time with the signs in Hollywood. The majority of the time it was residents, but now and again we’d hit someone who picked up a prostitute and catch them in the act," he told me. "This is more if they see someone pick someone up on the main street and turn off of it, to add to the probable cause for a stop."

More to the point, Pelayo said, it worked: arrests went up and activity went down. Now the Senior Lead Officer of LAPD's Olympic Division, he acknowledged that it might seem like an strange tactic to some, and that not all residents were thrilled with driving an extra minute or two out of their way to make a legal turn.

There's been no talk of expanding the no-right-turn law in any significant way. Out of sight, out of mind.

http://www.thedrive.com/news/24324/la-is-trying-to-fix-its-prostitution-problem-by-banning-right-turns-at-night-and-it-might-be-working