にほんどうろこうだん 日本道路公団 LinksSentence search for 日本道路公団Sentence search for にほんどうろこうだんKanji details for 日, 本, 道, 路, 公 and 団Edit in JMdict Noun1. Japan Highway Public Corporation; JHPCOrganization name Discussions Log in to talk about this word.