The document describes an automatic toll collection system using license plate recognition (LPR) technology. The system uses cameras to capture images of vehicles' license plates as they pass through the toll gate. An image processing algorithm segments the license plate from the image and recognizes the characters. The recognized license plate number is matched to a database to retrieve payment and vehicle ownership details. Based on the vehicle weight detected by a pressure sensor and the database lookup, the appropriate toll is calculated and deducted. Sensors also detect any hazardous gases in vehicles and trigger an alarm and gate closure. The system is designed and implemented using a field programmable gate array (FPGA) for high-speed operation and testing on real-world scenarios.