Abstract: Electronic toll collection (ETC) systems are designed to assist in the management of toll operations through technology that aids in streamlining traffic movement. ETC aims to eliminate the delay on toll roads by collecting tolls electronically. ETC determines whether the vehicles passing are enrolled in the program, alerts enforcers for those that are not, and electronically debits the accounts of registered vehicle owners without requiring them to stop. ETC involves four major components: Automated vehicle identification, Automated vehicle classification, Transaction processing, Violation enforcement. The database and report capabilities allow for better management of tolling operations, ensuring maximum revenues. This system detects distance between the vehicles and the reader using RSSI and debits from the account. Received Signal Strength Indicator (RSSI) is a measurement of the power present in a received radio signal. My project consists of an integrated vehicular unit onboard with wireless transceiver and a roadside reader with wireless transceiver and web access to debit from vehicle owner’s account. The vehicular unit automatically communicates with the reader when it enters the range and transmits its identification. The reader based on the identification received, deducts money from the vehicle owner’s account and sends a message to the owner. Other vehicles are indicated in case of arrival of an emergency vehicle in the range to yield the way to the emergency vehicle.

Keywords: Received Signal Strength Indicator (RSSI), Automated vehicle identification, Automated vehicle classification, Transaction processing, Violation enforcement. wireless transceiver and web access.