"Recliner" wrote:

"bob" wrote:

On Dec 14, 2:45 pm, G1206 wrote:
This afternoon at 12:30 whilst travelling on the Jubilee Line towards
Stratford, I passed a 6 car train of DLR B07 stock being tested on
the new DLR route between Canning Town and Stratford. The train was
being driven in manual mode at possibly no faster than 5mph.

By 6 car do you mean 6 articulated sets or 3 articulated sets? Most
discussion I have read about the recent exercise to increaes capacity
has refered to "3 car trains" meaning 3 articulated sets, but given
that longer trains are generally not run, 6 articulated sets seems a
little odd to me (but 3 articulated sets entirely to be expected).
Oddly, while people seem happy to generally talk about an artiuclated
set of DLR stock as a single car, they seem less willing to describe
Eurostar as 2 power cars and 2 passenger cars.

Yes, I constantly notice the same anomaly. In E* terms, the DLR will have
six-car trains, but they're actually three articulated vehicles, each
consisting of two segments. Of course, as a passenger, you're more aware
of passing between cars on an E* train than you are when moving between
the two halves of a DLR vehicle.

The 'official' terminology used by the DLR/ TfL (for better or for worse)
refers to an individual articulated vehicle as a "carriage", so the long
trains are "three-carriage trains" - see:
http://developments.dlr.co.uk/enhanc...city/index.asp

That said it's easy enough to work out what someone is talking about if they
were to refer to 2-car, 3-car, 4-car or 6-car DLR trains.

(My assumption is that they can't work in multiples of more than 3
carriages/vehicles even if they were running empty/ out of service -
obviously a longer than 3 vehicle train could not work in passenger service,
unless I suppose the 'extra' cars sticking off the platforms could be locked
out of service - but my guess is that the entire signalling and train
control system is predicated on 3 car/vehicle trains and so nothing longer
could run.)