On Thu, 05 Jul 2007 15:29:41 -0700, chunky munky
wrote:

On Jul 5, 11:13 pm, chunky munky
wrote:
On Jul 5, 9:10 pm, "Nicola Redwood" nicolaexternal-

wrote:
Just wondering what the average length of delay is across the Tube network.
The Customer Charter allows anyone to claim refunds for a delay of 15
minutes or more. I'm guessing therefore that the overall average would be
lower than this.

On another note, but kinda related - how much extra time do you factor in
for delays whilst travelling to work to ensure you get there in time. I
leave at 8:30am for a journey from Blackhorse Road to Brent Cross to arrive
for 10am and still can often be 5 mins late

There are different forms of delay.

The big one (and in my opinion the truest one) is the NAQS - Lost
Customer Hours. This is how much time of your life is "lost" when
travelling. This also forms a key part of the cost of delays to LUL's
Contractors: Metronet, Tubelines, edf, Connect, Network Rail etc.

Actually it is NACHs - Nominally Accumulated Customer Hours which is the
name of the measure. A NAX is a unit of measure which equals 100 lost
customer hours.

All this data is recorded on a daily performance review called a
Failures & Delays sheet. Contractors look at this to see how much the
guess they will have to pay out each day in penalty abatements.

I can assure they don't guess. They have people paid to work this out in
very great detail minute by minute.

All the sums to work out costs, lost customer hours are done by a
separate office.

Yes - I run one of them.

It is not past LUL to change certain LUL delays/cancellations round to
"fiddle" their perfomance statistics!

I think you need to be careful about what is implied from your
statement. All sorts of people read these groups.
--
Paul C


Admits to working for London Underground!