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Bridge Control / Security

Rail bridges also employ little capability to detect the ingress of suspicious persons and materials. Like tunnels, bridges are particularly vulnerable to attack by explosives and chemical/biological agents. As stated, approximately 1.7 million rail cars carrying hazardous material (including ordinance) move annually through the United States and Canada. Terrorists clearly regard shipments of hazardous/nuclear materials and military equipment as target-rich opportunities. The consequences of an attack could be significant.

Duos' turnkey Automated Security and Remote Video Surveillance systems establish a security zone (virtual perimeter) at each end of a rail bridge. A combination of intelligent video interpretation software and hardware automatically perform highly reliable detection of moving objects. The system distinguishes between train and foot traffic. Trains are of course permitted to cross the virtual gate, but persons are considered intruders unless the system has been deactivated for maintenance. Bridge security systems are typically bundled with bridge control applications.

Some of the bridge surveillance solutions Duos can provide:

• Automatic detection of intruders and suspicious objects left behind (or removed) within a user defined video security zone.
• Automatic detection of person or vehicles that loiter in a designated area.
• Bridge impact detection, and many more rule-based system settings.

Upon perimeter breach, strobe lights flash and a multi-language audio annunciation demands that the intruder immediately leave the restricted area. Alarms and live video are broadcast simultaneously to remote monitoring stations. Railroad police are enabled to speak over the amp in real time (utilizing Voice Over IP via the data highway) to address the subject of the perimeter violation.

Click here for a typical Duos Technologies application-specific bridge security solution.