It's already implemented on the M25, the orbital motorway around London. It gets used quite frequently to slow commuter traffic down from a limit of 70mph to as low as 40. There's a particular incentive there because…
It's already implemented on the M25, the orbital motorway around London. It gets used quite frequently to slow commuter traffic down from a limit of 70mph to as low as 40. There's a particular incentive there because…