What Does a Ramp Agent Do?

On-ramp tolling refers to the installation of toll stations on ramps rather than the main line of expressways. The advantage of this tolling method is that the vehicles on the main highway can run smoothly without the need to decelerate payment in the middle of the road, but the disadvantage is that when the traffic volume is large and the toll station design is poor, the vehicle is easy to get back on the road. Almost all types of AC roads using ramp charging are horn-type or Y-shaped AC roads. Taking Japan as an example, most expressways use on-ramp tolls, so most expressway interchanges are in the above two forms.