United States Department of Transportation
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Abstract:TECHNOLOGY, ARCHITECTURE, CONTRACTING, AND DEPLOYMENT RECOMMENDATIONS RESULTING FROM THE STUDY ENABLE MDOT TO BEGIN SYSTEM DESIGN AND CONSTRUCTION. HOWEVER, IN ORDER TO DEMONSTRATE THE IMPLEMENTATION METHODS OF NEW ATMS/ATIS COMPONENTS AND SYSTEM ARCHITECTURE QUICKLY, AN INITIAL DEPLOYMENT PHASE HAS BEEN INITIATED. THE INITIAL DEPLOYMENT ACTIVITY USES AN ARCHITECTURE THAT IS A SUBSET OF THE OVERALL AND FINAL SYSTEM ARCHITECTURE. COMPONENTS THAT SATISFY SYSTEM FUNCTIONAL REQUIREMENTS ARE RECOMMENDED
AND DEPLOYED IN A MANNER WHICH WILL DEMONSTRATE CAPABILITIES AND FUNCTIONALITY OF THE NEW SYSTEM ARCHITECTURE.
THE GOAL OF THE INITIAL DEPLOYMENT ACTIVITY IS TO PROVIDE MDOT WITH AN INTERIM SYSTEM IN AN AREA WHICH NEEDS IMMEDIATE ASSISTANCE IN REDUCING CONGESTION, INCREASING TRAVELER SAFETY, AND ENHANCING INCIDENT MANAGEMENT ACTIVITIES. ADDITIONALLY, SPECIFIC EMPHASIS WAS PLACED IN DEPLOYING IVHS TECHNOLOGIES WHERE PARTICULAR USER SERVICES ARE MOSTLY NEEDED IN METROPOLITAN DETROIT. EXISTING INFRASTRUCTURE AND COMPONENTS ARE USED TO REDUCE INITIAL COSTS AND MINIMIZE SYSTEM DEPLOYMENT TIME. A UNIQUE DEPLOYMENT STRATEGY IS RECOMMENDED TO ALLOW THE INITIAL DEPLOYMENT SOLUTION TO BE INCREMENTALLY
INTEGRATED INTO THE FINAL ARCHITECTURAL SOLUTION. ALTHOUGH THE INITIAL DEPLOYMENT SOLUTION MAY NOT BE PHYSICALLY EQUIVALENT TO THE FINAL SOLUTION, THE FUNCTIONALITY OF THE SYSTEM WILL BE RETAINED DUE TO THE MODULAR AND OPEN ARCHITECTURE TECHNIQUES USED. THE DISTRIBUTED PROCESSING ARCHITECTURE ALSO ALLOWS DEPLOYMENT IN A NON-LINEAR MANNER. LINEAR IMPLEMENTATION, USUALLY ATTRIBUTED TO LAYING CONDUIT AND CABLE, CANNOT PROVIDE THE MIXED DEPLOYMENT FUNCTIONALITY REQUIRED BY THE INITIAL DEPLOYMENT PHYSICAL ARCHITECTURE.
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