At 07:47 PM 18/10/2009, you wrote:
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>I think I am correct in stating that on the lines using the Sydney

>Underground stations - Town Hall, Wynyard, Circular Quay, St

>James and Museum, Central Low Level and Martin Plaza, all cars are

>exactly the same length. I think it is only the interurban cars

>which run into the terminal platforms at Central which are longer,

>by a half bay?

NO!

Tangara and Millennium sets are longer than "S" type cars. A set
will be longer than Tangara and Millennium sets. Even the S sets
are longer than their former single deck equivalent.

One just has to see how an 8-car Tangara overhangs at both front and
rear driver's door at a former standard length 520-ft platform. An
old single deck set had about 10-ft clearance.

As mentioned in previous posts, Sydney's underground station
platforms are ventilated by the air being pushed through the tunnels
by approaching trains. Closing off platforms will necessitate an
alternative air extraction system.

Hunslet.