What is the default "city speed" limit in Memphis unless posted otherwise?

The default "city speed" limit in Memphis is set at 30 miles per hour unless otherwise posted. This speed limit is established to help ensure the safety of pedestrians and to manage traffic flow effectively within urban areas. The rationale behind setting a default limit is to create a consistent expectation for drivers, which can help reduce the likelihood of accidents in densely populated regions where higher speeds would be dangerous. Understanding the default speed limits in various cities is essential for safe driving practices and compliance with local traffic laws.