The shuttle platform will be extended so that a five-car train can operate.

As of January 2005, the system had 228 cars, of which 43 five-car trains were formed, the rest used for specialist duties.

The four-car trains supplement the five-car trains on these services.

Each five-car train forms a single power unit, with three motorised middle cars (415.1, 415.7, 415.6) between two end cars (415.0, 415.5) carrying transformers.

SEL's control system allowed the Transurban cars to be operated singly or in five-car trains.

The platforms are only designed for five-car trains, so longer trains would require additional construction.

They Take Three Cars "Usually they have one car," a conductor on the five-car train said about midday yesterday.

The five-car trains are propelled by stationary drive machinery, controlling train acceleration, speed, propulsion and braking.

There are three five-car 30-passenger trains, with two abreast seating.

Despite their size, the steep grades meant one locomotive was stationed at each end of their five-car trains.