We don't currently have the means to require that. But we're writing new regulations to require traffic-calming measures when we see that they're necessary. Builders have been very cooperative with us so far, and we don't anticipate anything adversarial, but we'd like to have regulations in place if we should need them. A choker is a road area that is narrowed by building the curbs out further into the street. The extra space created between the curb and the sidewalk is usually planted with grass.
Chokers are useful if vehicles are parking too close to an intersection.
Another benefit is shortening the distance pedestrians have to cross. Manhattan does not have a specific plan for installing chokers. They are considered as needed and are one of the alternatives offered when residents request measures to control speeding in their neighborhoods. Manhattan is currently finishing bid specs for its first roundabout, planned for the intersection of Candlewood Drive and Gary Ave. This is a higher-volume intersection where the city needs to keep traffic moving, but more slowly.