About SAKAMOTO JUN
About 高知大 自然科学系
About YAMAOKA SHUN'ICHI
About 都市計画論文集(CD-ROM)
About local railway
About region
About economy
About national census
About population(human)
About ratio
About local railway
About region around station
About social economy
About decreasing rate
About Railroad construction planning and surveying
About Urban problems,urban disaster prevention
About Traffic surveies
About 地域鉄道
About 廃止
About 駅
About 周辺
About 社会
About 経済