diamond geezer

 Saturday, September 23, 2017

Users of Bow Road station might appreciate an update on how the westbound Next Train Indicator is doing.

In good news, it's stopped doing this.

1 Ealing Broadway via Earl's Ct 0 mins
2 Ealing Broadway via Earl's Ct 0 mins
3 Ealing Broadway via Earl's Ct 0 mins

In better news, it's started doing this, and being generally correct.

1 Richmond via Earl's Ct 1 min
2 Hammersmith via King's Cross 3 mins
3 Ealing Broadway via Earl's Ct 4 mins

Generally speaking, the first train is going where it says it's going, and will be arriving in approximately the time it says it will. That's progress.

Even better, the second train is also going where it says it's going, and will be arriving in approximately the time it says it will, and so is the third. That's unheard of.

There is a but, which is that trains aren't necessarily arriving in the order they say they are. The system appears to have a blind spot, around 8 minutes distant, at which point trains silently blip out on the display allowing those coming up behind to appear instead.

For example, this happens.

1 Ealing Broadway via Earl's Ct 4 min
2 Wimbledon via Earl's Ct 6 mins
3 Richmond via Earl's Ct 8 mins

Looks convincing. And all those trains are in fact on their way, in that order, at those times. But suddenly the display changes to this.

1 Ealing Broadway via Earl's Ct 4 min
2 Wimbledon via Earl's Ct 6 mins
3 Hammersmith via King's Cross10 mins

The Richmond train has entered the signalling black hole, and disappeared, allowing the Hammersmith train to nudge up into third place. Then, less than a minute later, the Richmond train reappears.

1 Ealing Broadway via Earl's Ct 3 min
2 Wimbledon via Earl's Ct 5 mins
3 Richmond via Earl's Ct 8 mins

The Hammersmith & City line train is still on its way, and still around 10 minutes distant, but is the fourth train on a three-train list so no longer registers.

I watched for a while, and four consecutive trains disappeared briefly when they were around 8 minutes away. Eight minutes away would be somewhere around Upton Park. I wonder what that's all about.

There are also issues, as you'd expect, as trains are brought into service further up the line at Barking. Any train over 12 minutes away probably isn't in its correct position in the sequence of trains that'll eventually turn up. But it is probably as far away as it says it is. So that's reassuring.

Anyway, in summary:
Trains are disappearing briefly from Bow Road's westbound display when they're around 8 minutes away.
All the trains you can see on the display are on their way, but other trains might be arriving sooner.
If all the trains on the display are less than 8 minutes away, then everything's probably correct.
This is what I've seen happening recently. Other things might be happening. Things could change again.
The display may be a bit wrong, but it's fantastically better than we've had for the previous 50 years.


<< click for Newer posts

click for Older Posts >>


click to return to the main page


...or read more in my monthly archives
Jan18  Feb18  Mar18  Apr18
Jan17  Feb17  Mar17  Apr17  May17  Jun17  Jul17  Aug17  Sep17  Oct17  Nov17  Dec17
Jan16  Feb16  Mar16  Apr16  May16  Jun16  Jul16  Aug16  Sep16  Oct16  Nov16  Dec16
Jan15  Feb15  Mar15  Apr15  May15  Jun15  Jul15  Aug15  Sep15  Oct15  Nov15  Dec15
Jan14  Feb14  Mar14  Apr14  May14  Jun14  Jul14  Aug14  Sep14  Oct14  Nov14  Dec14
Jan13  Feb13  Mar13  Apr13  May13  Jun13  Jul13  Aug13  Sep13  Oct13  Nov13  Dec13
Jan12  Feb12  Mar12  Apr12  May12  Jun12  Jul12  Aug12  Sep12  Oct12  Nov12  Dec12
Jan11  Feb11  Mar11  Apr11  May11  Jun11  Jul11  Aug11  Sep11  Oct11  Nov11  Dec11
Jan10  Feb10  Mar10  Apr10  May10  Jun10  Jul10  Aug10  Sep10  Oct10  Nov10  Dec10 
Jan09  Feb09  Mar09  Apr09  May09  Jun09  Jul09  Aug09  Sep09  Oct09  Nov09  Dec09
Jan08  Feb08  Mar08  Apr08  May08  Jun08  Jul08  Aug08  Sep08  Oct08  Nov08  Dec08
Jan07  Feb07  Mar07  Apr07  May07  Jun07  Jul07  Aug07  Sep07  Oct07  Nov07  Dec07
Jan06  Feb06  Mar06  Apr06  May06  Jun06  Jul06  Aug06  Sep06  Oct06  Nov06  Dec06
Jan05  Feb05  Mar05  Apr05  May05  Jun05  Jul05  Aug05  Sep05  Oct05  Nov05  Dec05
Jan04  Feb04  Mar04  Apr04  May04  Jun04  Jul04  Aug04  Sep04  Oct04  Nov04  Dec04
Jan03  Feb03  Mar03  Apr03  May03  Jun03  Jul03  Aug03  Sep03  Oct03  Nov03  Dec03
 Jan02  Feb02  Mar02  Apr02  May02  Jun02  Jul02 Aug02  Sep02  Oct02  Nov02  Dec02 

eXTReMe Tracker
jack of diamonds
Life viewed from London E3

» email me
» follow me on twitter
» follow the blog on Twitter
» follow the blog on RSS

my flickr photostream