Project Neon is changing traffic patterns and a neighborhood near West Oakey Boulevard and Rancho Drive is trying to stop resulting speeders themselves.
Residents have posted homemade speed limit signs on palm trees and in people's yards.
"They don't care if I'm standing here or if I'm crossing the street. Drivers look at you, but they don't care about the speed limit," said Cindy Munoz, one of the women who created the signs.
Some of the messages are funny. One reads "slow down bro." The message though is serious.
"They were tearing down our streets and then they would try to get out on to Rancho. That was a concern," said Munoz.
People who live in the area say cars on Oakey are trying to skip the light at Rancho and drive through their neighborhood, well over the speed limit, to cut across over to Rancho closer to West Sahara Avenue.
Project Neon is pushing more and more drivers onto side streets. The city of Las Vegas put out signs saying "resident access only" trying to keep through traffic out, but if you want something done right, you usually have to do it yourself.
The city and the Nevada Department of Transportation say they've met with the residents several times. Some say the problem is getting better.