In article , (Roland Perry)
wrote:

In message , at
06:35:10 on Fri, 26 Oct 2012, remarked:
The trouble is the power supply North of Milton as you should well
know. Otherwise there could be regular 8- and 12-car trains North of
Cambridge.

That could be solved by running more 4-car trains, but wasn't the
point I was making, which is that Cambridge station isn't just used
by people travelling to Kings Cross, there are other busy
destinations too.

It couldn't actually. The power supply limit is on the total number of
units north of Milton, coupled together or not.

But there's currently only 1ph electric north of Cambridge. Must be
some margin for extra services.

And then there are the capacity constraints imposed by the amount
of singling to electrify to Lynn on the cheap.

Last night about three quarters of the people got out at Ely, so we
should be looking to turn more units there (rather than perhaps
Chesterton Sidings).

I didn't reply earlier because I was leading a visit to Cambridge Power
Signal Box this morning. While I was there I checked on the limit North of
Milton. It is six units (or, more precisely, pantographs).

One train each way per off peak hour is two units but there are more in the
peaks. The present timetable only provides four units on the line at the
most but it only requires a little out of course running to push that up to
five if not six.

There are up to five units on the line during the Monday-Friday evening peak
while the 8-car 19:09 Cambridge to Lynn runs. There will also be empty stock
movements as the Lynn and Ely peak services don't have balancing passenger
workings.

--
Colin Rosenstiel

On Thu, 25 Oct 2012 16:05:13 +0100, Roland Perry wrote:

4 from Kings Lynn to Cambridge. After it joined up at Cambridge the load
redistributed and was about 100% full in the rear section (rather than
about 120%).

How can something be more than 100% full?

--
jhk

Jarle H Knudsen wrote:

How can something be more than 100% full?

Train capacity is normally stated as the number of seats. If there are
standing passengers in addition, that's over 100 per cent.

Neil
--
Neil Williams in Milton Keynes, UK. Put first name before the at to reply.

On 2 Nov 2012 14:25:29 GMT, Neil Williams wrote:

Jarle H Knudsen wrote:

How can something be more than 100% full?

Train capacity is normally stated as the number of seats. If there are
standing passengers in addition, that's over 100 per cent.

So there isn't supposed to be any passengers standing?

--
jhk

Jarle H Knudsen wrote:

So there isn't supposed to be any passengers standing?

There is no specific number of standing passengers permitted, basically as
many as you can fit. So there is no standard figure that could be used.

Neil
--
Neil Williams in Milton Keynes, UK. Put first name before the at to reply.

In message , at 14:48:22 on
Fri, 2 Nov 2012, Jarle H Knudsen remarked:
4 from Kings Lynn to Cambridge. After it joined up at Cambridge the load
redistributed and was about 100% full in the rear section (rather than
about 120%).

How can something be more than 100% full?

A train is deemed full when all the seats are occupied. After that
people can stand in the aisles and vestibules, making it more than 100%
full.
--
Roland Perry

On 2 Nov 2012 17:51:36 GMT, Neil Williams wrote:

There is no specific number of standing passengers permitted, basically as
many as you can fit. So there is no standard figure that could be used.

No health and safety rules?

--
jhk

On Fri, 2 Nov 2012 19:33:31 +0000, Roland Perry wrote:

A train is deemed full when all the seats are occupied. After that
people can stand in the aisles and vestibules, making it more than 100%
full.

Is this also true for London Overground trains with longitudal seating?

--
jhk

In article ,
(Jarle H Knudsen) wrote:

On Fri, 2 Nov 2012 19:33:31 +0000, Roland Perry wrote:

A train is deemed full when all the seats are occupied. After that
people can stand in the aisles and vestibules, making it more than
100% full.

Is this also true for London Overground trains with longitudal
seating?

Funny you should ask. I had a feeling there was an allowance for standing at
so many per square metre in calculating the PIXC figures.

--
Colin Rosenstiel

On 02/11/2012 23:37, wrote:

In article ,
(Jarle H Knudsen) wrote:

On Fri, 2 Nov 2012 19:33:31 +0000, Roland Perry wrote:

A train is deemed full when all the seats are occupied. After that
people can stand in the aisles and vestibules, making it more than
100% full.

Is this also true for London Overground trains with longitudal
seating?

Funny you should ask. I had a feeling there was an allowance for standing at
so many per square metre in calculating the PIXC figures.

Roland is just trying to rewrite the official definition, so I'll join
in the spirit of things and rewrite his earlier sentence...

"A train is deemed full ***by me*** [i.e. R Perry] when all the seats
are occupied. After that people can stand in the aisles and vestibules,
making it more than 100% full."

The above does not match the railway industry's definition.