RT null T1 JAPANESE EXPERIENCE INHIGH SPEED RAIL A1 United Nations Environment Programme, A2 Koike, Atsushi YR 2015 FD 2015-12 LK https://wedocs.unep.org/handle/20.500.11822/16917 UL https://wedocs.unep.org/handle/20.500.11822/16917 NO https://www.unep.org/transport/lowcarbon DS UN Environment Document Repository RD Sep 17, 2026