No more such accidents occurred after automatic train control was installed in 2001.

The new system, known as communication-based train control, has been long in coming.

Signalling will be moved to inside the cabs, using automatic train control.

However radio is rarely used for train control under normal operating conditions.

The whole line received partial automatic train control on 31 December 1986.

This method is most closely associated with communications-based train control.

All lines but the Yellow Line are equipped with automatic train control.

Furthermore, the line was not equipped with automatic train control.

On 10 November 1994, the line received automatic train control.

The Multiple-unit train control was at that time emerging and not yet a reliable working system.