On Feb 4, 1:24*am, Mizter T wrote:
On 3 Feb, 22:34, MIG wrote:



The PIS on DLR platforms has been giving random, and constantly
changing, information for the last few weeks (except at Bank, where it
says "Check front of train").

Also noticed this.



I wonder if they'll rip out the displays soon, like at the bus stops?

The Countdown displays have not been ripped out anywhere, at least not
to my knowledge. They just need to be hooked up to a better stream of
information, in other words iBus - it seems likely that this is in the
pipeline. Until they are, it seems possible that fixing the ones that
have got hardware faults might be taking a lower priority.

I am sure that there are some stops where they have physically gone.
Sometimes it's hard to remember what was there though. Heading south
in Camden Town is an example.


Unlike on the buses though, there are systems that need to know where
the trains are to stop them crashing. *I hope those still work.

The trains wouldn't be running if they didn't, full stop.

My understanding is that there have been some fairly calamitous
software upgrades to the central PIS masterbrain at DLR HQ. It needs
sorting, no doubt. However I've some notion that it might be related
to a more overall software upgrade of the DLR's systems, which would
make things more complicated. I might have made that up - or more to
the point conflated a number of separate happenings into one meta-
event.

To clarify a bit, they seem to be cycling between destinations that
are possible at the particular platform, so at Canary Wharf southbound
yesterday for example, it was showing the first train to Lewisham
(rather than Beckton or something), but the first train was in 1
minute, then no minutes (fine, but nothing coming) then 7 minutes,
then no minutes, then 3 minutes (after less than 4 minutes). The
second train was also varying wildly.

At platforms where different destinations are possible, the
destinations and order of trains vary as well, but only between ones
that are plausible. Some times the numbers of minutes are huge.