来源：《卫报》
原文刊登日期：2024年4月15日
Ten years ago this week on the M25, Britain’s first stretch of all-lane running (ALR) “smart” motorway was introduced, with more to follow. Envisaged as a way to ease congestion without spending money on widening roads, ALR motorways function without a hard shoulder for drivers in difficulty. As they were rolled out, motorists were assured that the emergency lane would not be missed, as new technologies would be able to respond to breakdowns, and control traffic flow.