HGS (Hızlı Geçiş Sistemi; English: Fast Pass System is an electronic toll collection system of radio-frequency identification (RFID) transponder type available on toll roads and toll bridges in Turkey. It is obtainable in a sticker or card form. Payment is handled by antenna on the toll booth, which collect money from the account associated with the tag. Additionally, smart cameras are used to detect the license plate and class of the vehicle. Despite these features, HGS is more cost-efficient compared to the OGS system.