When a car approaches a busy crossing, the smart road scans the area and tracks the positions, directions and speeds of other vehicles, warning the driver of potential hazards.

Trains are like cattle trucks while the cattle are busy crossing the cobbled motorways.

In other places, local wildlife groups run toad patrols, carrying the amphibians across roads at busy crossing points in buckets.

The demolition allowed to enlarge the busy crossing.

For example, busy crossings could become an unbroken stream of pedestrians as self-drive cars wait helplessly.