Abstract: A system and method for detecting the proximity of a bus or other transportation. Each bus is equipped with a transmitter, typically radio-frequency (RF), that broadcasts as the bus travels. As the bus and transmitter come within range of corresponding receivers, the receivers will detect the transmitter and will indicate that the bus is approaching. The receivers can be placed at the bus stop, and can also be carried by passengers so that they can be notified of the approaching bus before actually having to go to the bus stop. In various embodiments, the transmitters are implemented using radio-frequency identification (RFID) tags, Bluetooth, and other known RF technologies. Preferably, the transmitters will transmit an identifier that indicates the bus route or specific bus, and the receivers are programmed to only indicate the presence of selected buses.