A low-cost display bank that displays travel-related information in a public travel-related area and includes one or more slave low-cost display units, and a master low-cost display unit that includes a communication interface that receives travel-related information, a display bank control unit that sends identification information to a display bank data management unit through the communication interface, receives a display bank unit profile containing display parameters based on the identification information through the communication interface, receives travel-related information from the display bank data management unit in accordance with the received display parameters through the communication interface, sends the received travel-related information intended to be displayed on the one or more slave low-cost display units to the one or more slave low-cost display units, and displays the received travel-related information on the master low-cost display unit and the one or more slave low-cost display units based on the received display parameters.