Detection of Risk Bearing Vehicles before Entering Tunnels

Tunnel safety can experience an innovative advance due to an increased awareness of dangerous goods vehicles and the monitoring of potentially dangerous overheated vehicles before the tunnel entrance. The overhead 3D vehicle classification system with laser scanners and conventional digital and infrared cameras enables the automatic generation of highly accurate and reliable data on risk bearing vehicles for the first time. Various installations in Germany and Switzerland have shown that complex applications can be solved with an all-inone system without intrusion into the road surface. The 3D model-based vehicle information provides comprehensive traffic and safety information which supports tunnel management authorities and emergency services.