Multi-lane free flow in Malaysia

The multi-lane free flow (MLFF) is a system that allows free-flow high-speed tolling for all highway users. With MLFF, current toll lanes at toll plazas can be replaced with ordinary multilane road segments. By using tags with readers at gantry across the highway to detect vehicles and deduct tolls using the existing Electronic Toll Collection (ETC) when fully implemented. Using only video and automatic license plate recognition it is also possible to have a MLFF system without using tags and readers. This type of solution is implemented in Stockholm for congestion charging purposes.