For intelligent transportation systems, massive real-time transportation video and statistics data need to be handled swiftly and reliably in tough environments – essential for effective management of public transportation, traffic signals, freeways, tunnels, and parking lots. The most robust and cost-effective solution for dependable longdistance high-bandwidth data transmission under tough outdoor conditions would be industrial-grade Gigabit Ethernet backbone network infrastructure along with fiber-optics, wired, and/or wireless networks. With such networks, traffic control centers can benefit from vastly improved timeliness and accuracy of real-time traffic information. ORing, with many years of experience of industrial Ethernet networking know-how and innovative network management technologies, provide rugged and durable industrial Gigabit networking products most suitable for intelligent transportation systems.