Car model Type of automobile
Small-size vehicle, Motorcycle Light vehicle Light automobile 
Two wheeled vehicles (including motorcycle with side car)
Standard-size vehicle Standard vehicle Compact car (excluding two wheeled vehicles and motorcycles with side cars) 
General passenger cars 
Trailers 
(combination of a light automobile towing a single axle automobile)
Mid-size vehicle Mid-size car Freight automobiles (a vehicle of 3 axles and below with a gross vehicle weight of under 8 tons and maximum loading capacity of under 5 tons or a 2 axle tractor semi-trailer not towing a vehicle). 
Microbus
 (with a riding capacity of 11 to 29 and a gross vehicle weight of under 8 tons) 
Trailer
 (a light vehicle towing a vehicle of 2 or more axles or a standard vehicle towing a single axle vehicle)
Large-size vehicle Oversized vehicle Freight automobiles (vehicles with 3 axles or less with a gross vehicle weight of 8 tons or more and maximum loading capacity of 5 tons or more. However, vehicles that have a furthest wheel base of under 5.5 meters and car length is under 9 meters must be under 20 tons; vehicles with a furthest wheel base of over 5.5 meters but under 7 meters and car length of 9 or more meters and a vehicle with a furthest wheel base of 7 meters and over and a car length of 9 to 11 meters must be under 22t) or 4 axle vehicles.
Bus
 (a regular route bus with a riding capacity of 30 or more and gross vehicle weight of 8 tons or more; or a vehicle with a gross vehicle weight of 8 tons or more and a riding capacity of 29 people or fewer with a car length of under 9 meters.) 
Trailer 
(standard sized car towing a vehicle with 2 or more axles, a mid-size car towing a single axle vehicle or a large size car (2 axles) towing a single axle vehicle).
Over-size vehicle Extra large vehicle Freight automobiles (standard vehicles not classified as large-size vehicles with 4 or more axles) 
Trailer (combination of a mid-size vehicle towing a vehicle of 2 or more axles, large-size car towing a vehicle and the total number of axles is 4 or more and a large-size vehicle towing a vehicle). Large-sized special motor vehicle 
Bus (a vehicle with a riding capacity of 30 or more people and a gross vehicle weight of 8 tons or more and car length of 9 meters or more (excluding buses with regular routes))

Type of vehicle is determined at toll booths by the information given above (by shape, specifications, passengers, and type of freight, etc.). There are vehicles whose classification is difficult to determine (like class 8 vehicles) so in some cases we ask you to show vehicle identification.