Abstract
The users of bus are decreasing rapidly because of the motorization and depopulation in the mountainous region.This research aims to the gradual evaluation of bus operation system consider the financial burden from the viewpointof the willingness to pay by inhabitants. A case study in NUMATA city Gunma pref., the bus situation utilization andthe consciousness of the willingness to pay for maintaining the bus routes are surveyed by questionnaire. As theresults are following, (1)though the self does not utilize buses, buses are necessary for the region, (2)it was shown thatthe miniaturization of the bus vehicles and the reduce the operation days are necessary in order to maintain the busservice.