[Halcyon]

I think its a good idea. It will make people aware of where the cameras are and they will know this is an area where it is important to keep a safe speed and be aware.
Drivers will know when to slow down.
I've seen some drivers smash on the breaks when they notice the camera at the last minute. This in itself can cause an accident as the other cars wonder what on earth is going on.

As long as the drivers dont try to use this new map whilst driving and reading it at the same time, I think it will help motorists overall.
Most cameras are in danger spots and it will let them know in advance that they should slow down in that area.