In 2019, the leading cause for time lost on national expressways in Japan was when traffic slowed down below designated average speed but stayed above ** kilometers per hour, which accounted for ** percent of all person-hours lost of the ** most-congested sections. When congestion forced traffic to slow even further down, the cause was still primarily traffic concentration.
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MLIT (Japan). (June 8, 2020). Distribution of lost time in traffic on national expressways in Japan in 2019, by cause [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 28, 2026, from /statistics/1228752/japan-lost-time-share-on-national-expressways-by-cause/
MLIT (Japan). "Distribution of lost time in traffic on national expressways in Japan in 2019, by cause." Chart. June 8, 2020. ÌÇÐÄÆƽâ°æ. Accessed July 28, 2026. /statistics/1228752/japan-lost-time-share-on-national-expressways-by-cause/
MLIT (Japan). (2020). Distribution of lost time in traffic on national expressways in Japan in 2019, by cause. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 28, 2026. /statistics/1228752/japan-lost-time-share-on-national-expressways-by-cause/
MLIT (Japan). "Distribution of Lost Time in Traffic on National Expressways in Japan in 2019, by Cause." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 8 Jun 2020, /statistics/1228752/japan-lost-time-share-on-national-expressways-by-cause/
MLIT (Japan), Distribution of lost time in traffic on national expressways in Japan in 2019, by cause ÌÇÐÄÆƽâ°æ, /statistics/1228752/japan-lost-time-share-on-national-expressways-by-cause/ (last visited July 28, 2026)
Distribution of lost time in traffic on national expressways in Japan in 2019, by cause [Graph], MLIT (Japan), June 8, 2020. [Online]. Available: /statistics/1228752/japan-lost-time-share-on-national-expressways-by-cause/
