http://english.caixin.com/2012-01-06/100346469.html

I read the all-in-one-page version: http://english.caixin.com/2012-01-06/100346469_all.html

My takeaway: Subways are uneconomical in most Chinese cities:

"The only cities that should have built subways are super-large ones such as Beijing, Shanghai, Tianjin, Shenzhen, Wuhan, Nanjing and Guangzhou," Zhang said. "Provincial capitals such as Shenyang and Taiyuan can handle their transit needs with a single, light-rail line."