Fare payment systems are methods used to collect payment for transportation services, such as buses, trains, and subways. These systems can include cash payments, smart cards, mobile apps, and contactless payment options. They aim to streamline the boarding process and improve the overall efficiency of public transit. Modern fare payment systems often utilize technology like RFID (Radio-Frequency Identification) and NFC (Near Field Communication) to allow quick and easy transactions. By adopting these systems, transit agencies can enhance user experience, reduce wait times, and gather valuable data on ridership patterns for better service planning.