What is an all lanes running motorway?

An all lanes running motorway is characterized by having no hard shoulder and the implementation of variable speed limits. This design allows the use of all available lanes for traffic, enhancing the efficiency of vehicle movement and reducing congestion during peak times or in response to accidents or roadwork.

The absence of a hard shoulder means that drivers must be particularly vigilant, as there is no designated area to pull over in the event of a breakdown or emergency. Instead, the variable speed limits, which can change based on traffic conditions, help maintain a steady flow of vehicles while minimizing the risk of accidents, thereby improving overall road safety.

This configuration of motorways is increasingly common in modern transportation infrastructure, aimed at maximizing capacity and adapting to real-time traffic flow. The other options describe different types of roadways or conditions that do not align with the specific features of an all lanes running motorway.