Q: Why are some roads marked “Dead End” and some marked “No Outlet?” Is there a difference?
A: One theory is that wealthy neighborhoods petitioned to eliminate “Dead End” signs from their streets because it reflected poorly on the status of their residents. But that’s completely untrue. There’s a manual that traffic engineers use when determining appropriate sign usage. The Manual on Uniform Traffic Control Devices (MUTCD) specifies that the “Dead End” sign may be used at the entrance of a single road that terminates or ends in a cul-de-sac, while the “No Outlet” sign may be used at the entrance to a road network from which there is no other exit. The sign choice comes down to whether it’s just one road or more than one road with no other way out.