the system since the system references the floor plans on which the building evacuation paths are defined as the emergency response personnel arrive at a building the emergency response personnel should be able to access the building 39 s management information system accessing the building 39 s management information system can be done with the aid of building management personnel or by the emergency response personnel themselves should local regulations authorize such access the information system informs the emergency response personnel of the location s of the emergency incident that is being responded to alternatively the emergency response personnel can input into a system according to another embodiment of the present invention the location s of the emergency incident s using an electronic display device the system displays all possible predetermined tracking device placeholder locations where the emergency response personnel can affix their tracking devices if necessary the system orders the placeholder locations in terms of accessibility and accuracy of the triangulation computation results the emergency response personnel affix the tracking devices at the system indicated placeholder locations or at placeholder locations that the emergency response personnel decide to be the most beneficial to suit the emergency situation encountered if the emergency response personnel do not choose to use the placeholder locations that are displayed by the system the emergency response personnel can input the placeholder locations actually used into the system alternatively inexpensive and passive sensors could have been previously installed into the placeholders within the fixtures the sensors can automatically detect the presence of tracking devices that have been affixed to the placeholders by the emergency response personnel the sensors could then activate the.