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The following discusses how the National ITS Architecture provides the transportation service described by this service package. Each numbered item describes the operation of that portion of the service package identified with the corresponding number on the transaction set diagram.
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The Maintenance and Construction Vehicle Subsystem (MCVS) receives data from advanced safety systems on board the vehicle (safety system status) and data from operational systems on-board the vehicle (maint and constr vehicle measures). This latter set of data could include the outputs of general non-ITS sensors providing vehicle information such as engine temperature. The latter set of data could also include data from maintenance-specific systems such as a materials spreader or snow plow equipment. In addition, equipment status can be entered by Maintenance and Construction Field Personnel (maint and constr field personnel inputs). This data (maint and constr vehicle conditions) could then be automatically transferred to the Maintenance and Construction Management Subsystem (MCMS) or the Equipment Repair Facility where this diagnostic information is then used to schedule and manage vehicle maintenance. In addition to sending the data to the centers, it could also be displayed to the Maintenance and Construction Field Personnel (maint and constr vehicle condition presentation). Finally, specific instruction (such as to cease operating a machine or to take the machine to maintenance immediately) could be presented to the Maintenance and Construction Field Personnel (maint and constr field personnel information presentation).
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The Equipment Repair Facility can provide to the MCMS current maintenance and repair status of the maintenance and construction vehicle fleet and other support equipment, including a record of all maintenance and repair activities performed (maint and constr equipment repair status). The MCMS provides fleet information to the Equipment Repair Facility such as status and diagnostic information, vehicle utilization, and coordination of when vehicles will be available for preventative and corrective maintenance (maint and constr fleet information).
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The entire process is under the asynchronous monitoring (maint and constr operations information presentation) and control (maint and constr center personnel inputs) of Maintenance and Construction Center Personnel.
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