Asset and Personnel Tracking in Tunneling AT A GLANCE • real-time localization of persons & goods • location overview on digital map • improved safety due to emergency tracking & gas detectionPROBLEM DEFINITION The construction of underground tunnels is characterized by high risks during project exe- cution. Workers face many dangers since they are working under reduced light conditions, with difficult or limited access and egress, and with the risk of fire. In emergency situations, lo - cating employees in a timely manner is crucial in order to be able to evacuate them safely. An ongoing challenge is also the planning and coordination of resources (personnel, material and vehicles). Each tunnel project is a highly complex process in which all the individual steps require prec

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