In order to improve the environment along the Yokohane Line with many residential areas, this initiative of environmental road pricing discounts for the Metropolitan Expressway attempts to divert drivers of large and extra large size vehicles with large emissions of suspended particulate matter (SPM) and nitrogen dioxide (NO2) from the Yokohane Line to the Bay Shore Route. Discounts will be given to ETC large and extra large size vehicles that use the Bay Shore Route or Kawasaki Line, making it easier to use the Bay Shore Route and Kawasaki Line.
Drivers who use eligible entrances/exits with the same ETC card, and with a large or extra large size vehicle using ETC remote payment, and who use the Bay Shore Route "Kawasaki Ukishima JCT to Daikoku JCT" or Kawasaki Line "Kawasaki Ukishima JCT to Daishi Entrance" without passing between "Daishi-Asada" on the Yokohane Line are eligible.