"DW downunder" noname wrote in message
u
"Recliner" wrote in message
...
"David Cantrell" wrote in message
k
On Wed, Aug 12, 2009 at 10:26:30AM +0100, Recliner wrote:

True, but the new Victoria line trains are longer, faster and more
frequent, so that may account for some of the extra power.

Longer? When did the platforms get lengthened then?

The new Victoria line trains will be the longest on the LU network,
until the even longer new 8-car S stock trains enter service.
Presumably they just stop further into the tunnels.


But maybe answer the question: The '09 stock is longer than the 67
stock because the revised ATO is setup for a higher stopping
accuracy. That means that more of the available platform is actually
used, hence longer trains - not longer platforms. [BTW, as the trains
are in tunnel all the time they carry pax, "... stop further into the
tunnels ... " is a statement rather lacking in points of reference.]
Also, elimination of intermediate driving cabs increases the total
amount of space in the train made available to pax.

OK, stop further into the running tunnels, but you already knew what I
meant. But your other points do make sense.

Incidentally, they're 3m longer than the old trains, which were already
long by tube train standards. This might be another reason for them not
ever being expected to run in service on other LU lines.