What is the legal speed limit in a Massachusetts residential area unless otherwise posted?

In Massachusetts, the default legal speed limit in residential areas is indeed 30 mph unless otherwise posted. This regulation is designed to promote safety within community environments where pedestrians, especially children, may be present. The 30 mph limit strikes a balance between maintaining a reasonable flow of traffic and ensuring the safety of residents and motorists.

Other locations have different speed restrictions, which can lead to confusion; however, for residential zones, the 30 mph limit is specifically established by state law as a standard to enhance safety in neighborhoods. It's worth noting that local municipalities can implement lower speed limits if deemed necessary, but the 30 mph mark serves as the baseline for most residential areas in Massachusetts.