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U.S. Department of Transportation
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Connected Vehicle Roadside Equipment broadcast messages about the parameters of the Low Emissions Zone.
ITS Roadway Equipment provide information to travelers about the geographic limits of the Low Emissions Zone, time the zone will be commissioned and decommissioned, and fee structure for entering the zone.
Connected Vehicle Roadway Equipment provide information about the fee structure to In-Vehicle Systems as vehicles approach the Dynamic Low Emissions Zone boundary. Connected Vehicle Roadway Equipment also send request for payment messages to in-vehicle systems.
In-Vehicle Systems send data about the vehicle’s engine type, average emissions, a unique identification number, and payment information via secure communications to Connected Vehicle Roadway Equipment and then to the Dynamic Low Emissions Zone System.
The Dynamic Low Emissions Zone System requests payment from the financial institution.