The local bus-service on the trunk line connected two cities (omnibuses between adjacent or middlefar cities with the frequent-service) which were gained an important source of income for local bus companies were reduced more than in rural-area since 1970's. Through this era and such process, the writer analyses the case study of some Bus-routes from Takasaki or Maebashi city in Gunma prefecture about the vicissitude of relation between the bus-operation and the railway (comparison with the fare and the convenience), the influence involves the rationalization of the operation and the problem of management and policy in the local bus-business, on bus-routes around Takasaki and Maebashi cities in Gunma-prefecture.
