What speed is not allowed while driving in urban residential areas?

Answer: D — 30 mph

In urban residential areas, the maximum speed limit is typically set to ensure the safety of pedestrians, bicyclists, and motorists. A speed of 30 mph is generally considered too fast for these environments because residential areas often have higher foot traffic, children playing, and unpredictable conditions such as parked cars. The lower speed limit of 25 mph is designed to minimize the risk of accidents and allow drivers enough time to react to sudden changes in the environment or to the presence of pedestrians. This speed limit provides a safer driving environment in neighborhoods where safety is a priority. By adhering to these speed limits, drivers contribute to creating safer streets for everyone.