The thin metal wire that sticks up from the road before toll collecting stations serves multiple purposes in the automatic toll collection process. Here are the primary reasons for its use:
1. Vehicle Detection:
The metal wire acts as a sensor to detect the presence of a vehicle approaching the toll station. It sends a signal to the toll collection system, alerting it to the arrival of a vehicle.
2. Vehicle Classification:
In addition to detecting the presence of a vehicle, the metal wire also helps in classifying vehicles into different categories based on their size and number of axles. This classification is crucial for determining the appropriate toll fee for each vehicle.
3. Activation of Toll Collection Mechanism:
Once the vehicle's presence and classification are confirmed, the metal wire triggers the activation of the toll collection mechanism. This could involve raising a barrier, opening a gate, or activating an electronic toll collection system.
4. Data Collection:
Apart from triggering the toll collection process, the metal wire also assists in collecting data related to traffic volume, vehicle types, and other traffic-related statistics. This information is valuable for traffic management and planning purposes.
5. Durability:
Metal wires are constructed to withstand the weight and movement of vehicles passing over them continuously. They are designed to be durable and long-lasting, requiring minimal maintenance.
These thin metal wires play a crucial role in efficiently managing and automating toll collection on roadways, providing convenience for drivers and streamlining the revenue collection process for toll operators.
