New sensor could cut leaves-on-the-line train delays

Train delays caused by leaves on the line could be avoided if a new, low-cost sensor developed at the University of Birmingham is used on railway networks.

In wet conditions leaves stick to the tracks like glue, which means trains can't brake properly.

The AutumnSense system works by detecting moisture on the tracks so drivers can brake earlier.

The sensor is already being trialed on outdoor sections of the London underground and it's hoped a nationwide trial could follow.