It creates a bus lane on the hard shoulder and uses sensors in the road to detect when mandatory speed limits should be varied to help traffic flow.

BBC: New system to cut traffic jams in Fife

Policing was at the top but road safety, powers over speed and drink driving limits, ports, licensing of alcohol and light night entertainment were there too.

BBC: Shopping lists and top tables

Speed limits are heavily researched controls meant to reduce road fatalities and accommodate for road conditions.

FORBES: The High Price Of Speeding