What is the speed limit on a divided highway?

The correct answer indicates that the speed limit on a divided highway can be greater than 50 mph, provided that it is clearly indicated by posted signs. Divided highways, which typically feature a median or barrier separating traffic flowing in opposite directions, are designed for higher speed limits compared to other road types due to their construction and reduced risk of head-on collisions.

In Massachusetts, while the default speed limit on divided highways is generally set at 55 mph, it is essential to look for any posted signs that may specify a different maximum speed. These signs are placed to communicate any variations based on road conditions, traffic patterns, or safety considerations. Therefore, if a sign indicates a speed limit above 50 mph, drivers must adhere to that posted limit, distinguishing this scenario from general or default limits that may not apply in all cases. Understanding how to interpret these signs and their implications is crucial for safe driving on divided highways.