Virginia DOT interchange uses GarrettCom switches to manage traffic

Last Updated (Friday, 17 October 2008 14:14) Written by Administrator Wednesday, 04 June 2008 10:41

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VDOT consulted with S.Rock/Estabrook Corp. to develop a system that could handle the traffic demands of this busy interchange. Tunnels and bridges pose particular challenges in traffic management. Once a traffic incident occurs, moving traffic around blockages is very difficult. Both prevention of incidents – such as over-height trucks entering tunnels – and early warnings to motorists that can route them around bottlenecks are critical to smooth traffic flow.

GarrettCom’s Hardened mP62 switches in field cabinets and 6K16 managed switches are deployed along the Pinners Point roadway and in the Midtown Tunnel to relay information to the VDOT Traffic Control Center (TCC). The traffic controller consults video cameras spaced along the roadways to pinpoint the incident site. GarrettCom’s S-Ring™ Redundancy Management Software facilitates rapid self-healing should a break in the Ethernet LAN communications ring occur.

Download application note: Virginia DOT interchange uses GarrettCom switches to manage traffic [PDF]