Hacker News new | ask | show | jobs
by patentatt 1547 days ago
Your comment about the Shanghai subway sparked my curiosity. Wikipedia says the Shanghai metro consists of 396 stations across 19 lines, and has been operating since 1993. How does that square with "since [2012] the Shanghai subway station has opened 21 new lines composed of 516 stations"? Especially when Wikipedia also says "During Expo 2010 the metro system consisted of 11 lines, 407 km, and 277 stations." Seems like they opened 119 stations and added 8 new lines since 2012.

https://en.wikipedia.org/wiki/Shanghai_Metro

1 comments

Parent misspoke. It's been 21 lines consisting of 516 stations in total since inception (really since 2000 since there was a long lull of little activity in the 90s). The discrepancy in lines comes from whether you count certain rail-based transportation lines as part of the subway system or not. The discrepancy in subway stations is mainly due to whether you count interchange stations as single stations or multiple stations. I think the former is the one that is usually quoted for other subway systems in the world so makes more sense (so ~400 is probably the more appropriate number of stations to state).

I also wonder if the Wikipedia article may be out of date? IIRC there were some new stations added in the last few months. But even if that were the case it's just a couple of stations, so the numbers should still be close.

More impressive to me is the pace of construction in smaller cities which have also been rapidly building out subway systems (e.g. Hangzhou comes to mind, getting around Hangzhou on public transportation has drastically improved in the last five years, likewise I've personally seen the same immense improvements for Harbin).

> The discrepancy in lines comes from whether you count certain rail-based transportation lines as part of the subway system or not.

Ah, that makes some sense.

Like in San Francisco, there is the regional BART light rail, but also there is the hybrid bus/rail Muni metro transit for local service.

https://www.sfmta.com/muni-transit

https://www.bart.gov