Volume of traffic has shot up with over 10 million vehicles on the road while average speed has plunged
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/traffic-pollution-getting-worse-cse
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/hindu-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/delhi
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/air-pollution
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/congestion
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/vehicular-pollution
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/cars-and-congestion
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/parking-policy
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/centre-science-and-environment-cse