Get Acquainted with Smart Motorways
When driving through the UK, you have probably used at least once smart motorway. They use variable speed limits to reduce congestion and move the flow of traffic. You can find three different kinds of smart motorways. All lane running schemes will use hard shoulders. Controlled motorways will also have variable speed limits. Last but not least is dynamic hard shoulder running. This type can move the hard shoulder and open it to ease congestion.