Dead end streets are roads that lead to nowhere, making it difficult for drivers to maneuver their way around. When searching for alternatives to these types of streets, consider a few synonyms. Cul-de-sacs are roads that lead to a roundabout before connecting back to the main road, commonly found in residential areas. Blind alleys also offer no through traffic. Turnarounds, on the other hand, are roads with a designated space for vehicles to make a U-turn and head back in the opposite direction. Finally, impasses are roads with an obstruction that prevents any further progress; these are commonly found in construction zones or areas with major infrastructure problems.