Hi-pass

Hi-pass vehicle terminal
Genesis G70 vehicle with Hi-pass Terminal
Gyeonggi Gwangju Rest Area Hi Plus Card Unmanned Charger

Hi-pass (Korean하이패스) is the name of an electronic toll collection system for the expressways in South Korea that allows motorists to make wireless toll payments, without the need to stop.[1]

It uses DSRC (Dedicated Short-Range Communication), allowing for automatic settlement of tolls, by communication between the car terminal and the toll gate equipment.