Ensuring trains can't enter area when workers need access

I have a suggestion to improve MRT track safety for workers ("Safety lapse in track accident, says SMRT"; March 24).

Barriers can be built along train tracks that must be lowered before any access to the tracks can be granted.

These barriers should be linked to a control system that will automatically stop trains, including driverless ones, at a safe distance when the barriers are lowered.

Sim Beng Tiong