Toll management systems are systems that are used to collect tolls from vehicles using toll roads, bridges, and tunnels. These systems typically involve the use of electronic toll collection (ETC) technology, which allows vehicles to pass through toll plazas without stopping to pay a toll. Instead, tolls are collected electronically, using transponders or license plate recognition technology.

There are several different types of toll management systems that are in use today. One of the most common is the electronic toll collection (ETC) system, which uses transponders or license plate recognition technology to automatically collect tolls as vehicles pass through toll plazas. These systems are typically faster and more efficient than traditional toll collection methods, as they eliminate the need for vehicles to stop and pay a toll.

Another type of toll management system is the open road tolling (ORT) system, which allows vehicles to pass through toll plazas at highway speeds. This is typically done using overhead gantries that are equipped with electronic toll collection equipment. ORT systems are particularly useful for high-volume toll roads and bridges, as they can help to reduce congestion and improve traffic flow.

Yet another type of toll management system is the fully automated toll collection system, which uses cameras and license plate recognition technology to identify vehicles and charge tolls. This system eliminates the need for the vehicles to have any electronic device in the car and it is typically used in low-volume toll roads.

Overall, toll management systems can help to improve the efficiency and effectiveness of toll collection, while also reducing congestion and improving traffic flow on toll roads. This can also help to reduce the environmental impact of transportation by reducing emissions from vehicles.