RT null T1 Sustainable mobility and PassengerTransport A1 United Nations Environment Programme, A2 P.R. Shukla, A2 Dhar, Subash K1 transport YR 2012 FD 2012-08 LK https://wedocs.unep.org/handle/20.500.11822/16936 UL https://wedocs.unep.org/handle/20.500.11822/16936 NO https://www.unep.org/transport/lowcarbon DS UN Environment Document Repository RD Sep 19, 2026