diamond geezer

 Wednesday, April 19, 2017

Now that we have an updated tube map, I thought it would be interesting to count up the blobs and see how much of the tube map is accessible. And the answer is 45%.

I haven't calculated perfectly accurately, because counting blobs on a map is tricky, and what precisely is a station anyway? But here's how I worked it out.

There are approximately 440 stations on the tube map. About 60% are Underground stations, so I'm going to start with those, and then add on additional bits of the network bit by bit.

If you just consider Underground stations, which is how the tube map started out, then only 28% of the 270 stations are step-free. Approximately speaking, 40 stations have blue blobs, 35 stations have white blobs, and 195 stations have no blob at all. Upgrading a 100+ year-old network is logistically difficult and very expensive.

Next to arrive on the tube map was the DLR. The DLR is 100% accessible throughout, hurrah, because it was planned that way. This adds another 39 stations to the map, all with blue blobs. If you consider tube and DLR stations together, then the proportion of step-free stations on the tube map leaps to 37%.

Next to arrive on the tube map was the Overground. The Overground adds another 80 stations to the map, approximately 50% of which have step-free access. That's a pretty good average for a mishmash of a network, although almost all its blobs are white, not blue. If you consider tube, DLR and Overground stations together, then the proportion of step-free stations on the tube map rises to 40%.

Next to arrive on the tube map was the Dangleway. This adds two accessible terminals, but isn't enough to tweak the overall step-free percentage, which remains at 40%.

Next to arrive on the tube map was TfL Rail. When Crossrail replaces it, 100% of the stations will be accessible, but in the meantime it's less than half. If you consider tube, DLR, Overground and TfL Rail stations together, then the proportion of step-free stations on the tube map remains at 40%.

The most recent arrival on the tube map was Tramlink. Every single tram stop is accessible, hurrah, and this adds an extra 38 blue blob locations. If you consider tube, DLR, Overground and TfL Rail stations and Tram stops together, then the proportion of step-free stations on the tube map rises to 45%. And that's where we are today.

By the end of the decade, another eight tube stations will be at least partly accessible. That'll get us to 47%. Plus Crossrail will be all over the map, adding a further 24 blobs, and this'll finally hit the magic 50% mark. Hang on in there, the half-accessible tube map is on its way.


<< click for Newer posts

click for Older Posts >>


click to return to the main page


...or read more in my monthly archives
Jan17  Feb17  Mar17  Apr17  May17  Jun17  Jul17  Aug17  Sep17  Oct17
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