①A public safety commission may have a police officer from the prefectural police that is under its administration do a survey of road traffic volumes, routes of travel by vehicle or streetcar, and other necessary road traffic issues, in order to ensure the appropriateness of its regulation of traffic on a road pursuant to this Act.

②On finding it to be particularly necessary to do so in order to implement a survey of road traffic pursuant to the preceding paragraph, a police officer may request the driver of a vehicle or streetcar using a road to stop temporarily, and ask questions on the route of travel in the vehicle or streetcar, but only so far as is necessary to implement that survey.

③Having implemented a survey under paragraph (1) and on finding it to be necessary to do so, a public safety commission is to notify the manager of the road or relevant administrative agency of the results of the survey, along with its opinion.