9.3.4.5: Support Personnel Work Zone Safety

This process shall provide an interface in a personnel device through which users such as maintenance and construction field personnel can obtain alert messages. This process shall be responsible for sensing and evaluating the likelihood of a collision between maintenance and construction personnel and moving vehicles. The process shall base its detection on input from positioning information from a location and time data source, e.g. a GPS receiver. This process shall receive location and safety information concerning the location of other vehicles in the vicinity from the roadside or its maintenance and construction vehicle. This process shall determine the probability of a collision based on the current location and the location of other moving vehicles. When an event is detected this process shall output the appropriate messages to the personnel. The process shall provide its outputs in audible and visual forms that are consistent with a personnel device. The process shall display data for as long as required by the user and must enable viewing of previously output data. When used with a portable device, the process shall provide the user the option to filter the data (to be displayed) relevant to the personnel's current location, e.g. work zone area, etc.

This process is associated with the Personnel Device physical object.

This process Is associated with the following functional objects:

• Personnel Safety Monitoring
• Personnel Work Zone Safety

This process Is associated with the following data flows:

• vehicle_location_for_mc_personnel_device
• personnel_position_for_safety
• personnel_work_zone_collision