Beijing:As more cities across world opt for metro rail making it the mainstay of urban transportation, Chinese planners have warned that their construction and maintenance turned out to be costlier
Technology Partners: MimirTech
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/metro-rail-costlier-space-travel
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/times-india-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/metro
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/rail-transport
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/china
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/transport
