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					 THE UNIVERSITY OF


ARIZONA                                                                  atlas
 TUCSON, ARIZONA
                           TRANSPORTATION
                                 + ITS
                           + REMOTE SENSING


                                 Pitu Mirchandani



                     Professor and Director, ATLAS Research Center
                      Systems and Industrial Engineering Department
                      The University of Arizona, Tucson, Arizona 85721



                                    September, 2002
 THE UNIVERSITY OF


ARIZONA                                             atlas
 TUCSON, ARIZONA
                     OVERVIEW OF TALK

 We will discuss:

 • Transportation service systems before ITS


 • Provide a framework to discuss transportation systems


 • Transportation systems with ITS, especially sensor and
 communication technologies


 • Transportation systems with ITS and Remote Sensing
 THE UNIVERSITY OF


ARIZONA                                                                                  atlas
 TUCSON, ARIZONA
                     TRANSPORTATION PLANNING
                                                 (before ITS)



                                                                           Transport Planning
                                                                           & Network Design

                                                        MANUAL SURVEYS
                                                        & TRAFFIC COUNTS

                                   Transport Planning
                                    & Network design


                      MANUAL SURVEYS
                      & TRAFFIC COUNTS




   TRANSPORTATION PLANNING
 THE UNIVERSITY OF


ARIZONA                                                atlas
 TUCSON, ARIZONA
                     TRANSPORTATION MANAGEMENT
                             (before ITS)
                             OPTIMIZATION/SIMULATION
                                     MODELS



                                       DOWNLOAD
                                    OF TIMING PLANS
 THE UNIVERSITY OF


ARIZONA                                                                               atlas
 TUCSON, ARIZONA
                                         BEFORE ITS




                                                            OPTIMIZATION/SIMULATION
                                                                    MODELS



                                  Transport Planning
                                   & Network design                   DOWNLOAD
                                                                   OF TIMING PLANS

                     MANUAL SURVEYS
                     & TRAFFIC COUNTS




   TRANSPORTATION PLANNING                             TRANSPORTATION MANAGEMENT
 THE UNIVERSITY OF


ARIZONA                                      atlas
 TUCSON, ARIZONA
                     TRAVELER INFORMATION
                           (before ITS)
                            AN INCIDENT AT
                           I6TH & CONN.AVE




                                   MAP
 THE UNIVERSITY OF


ARIZONA                                                                              atlas
 TUCSON, ARIZONA
                                           BEFORE ITS
                                        AN INCIDENT AT
                                        I6TH & CONN.AVE




                                                          TRAVELER INFORMATION


                                                 MAP

                                                           OPTIMIZATION/SIMULATION
                                                                   MODELS



                                  Transport Planning
                                   & Network design                  DOWNLOAD
                                                                  OF TIMING PLANS

                     MANUAL SURVEYS
                     & TRAFFIC COUNTS
 THE UNIVERSITY OF


ARIZONA                                                                   atlas
                             FRAMEWORK FOR ITS
 TUCSON, ARIZONA




                                                                   data
                                                                   flow   Decision
                      Equipment      Processing   Data Gathering          System

                                    Sensors

                     Sensor media
                                                    Feedback
                                                    & decisions




        Transportation Flows
 THE UNIVERSITY OF


ARIZONA                                                    atlas
 TUCSON, ARIZONA
                     SENSORS in TRANSPORTATION
       OTHER DETECTORS
      • VIDEO DETECTORS
     • SONAR DETECTORS
     • RADAR DETECTORS
                             MANUAL SURVEYS       GPS-BASED
              INDUCTIVE         & COUNTS          LOCATOR
            LOOP DETECTORS
                                                         CELL
                                                        PHONES




                                                OTHER SENSORS
                                                •TRAVEL PROBES
                                                 •DRIVER INPUTS
                                              •ROADSIDE BEACONS
 THE UNIVERSITY OF


ARIZONA                                               atlas
                          FRAMEWORK FOR ITS
 TUCSON, ARIZONA




                       Sensors
                                    Data flow
                                                Transportation
                                                   Systems



               Sensor media
                                  Feedback
                                  & Actions




   Transportation Flows
 THE UNIVERSITY OF


ARIZONA                                                     atlas
                          FRAMEWORK FOR ITS
 TUCSON, ARIZONA




                       Sensors
                                     Data flow
                                                      Transportation
                                                         Systems
                                      Wire
                                  Telephone line
                                      Fiber
               Sensor media      Wireless (analog)
                                 Wireless (digital)
                                     Internet
                                 Wireless Internet



   Transportation Flows
 THE UNIVERSITY OF


ARIZONA                                                        atlas
                          FRAMEWORK FOR ITS
 TUCSON, ARIZONA




                       Sensors   data
                                 flow
                                            Transportation Systems




               Sensor media
                                    Feedback
                                    & Actions




   Transportation Flows
 THE UNIVERSITY OF


ARIZONA                                                           atlas
                          FRAMEWORK FOR ITS
 TUCSON, ARIZONA




                       Sensors   data
                                 flow
                                               Transportation Systems

                                        Transportation Networks

               Sensor media




   Transportation Flows
 THE UNIVERSITY OF


ARIZONA                                                          atlas
 TUCSON, ARIZONA
                     TRANSPORTATION PLANNING
                PLANNING &
                                      WITH ITS
                SIMULATION
              TOOLS (E.G., DTA)


                                                   Transport Planning
                                                   & Network Design
                                                       Decisions


                                  MANUAL SURVEYS


                        Sensor data
 THE UNIVERSITY OF


ARIZONA                                                           atlas
                          FRAMEWORK FOR ITS
 TUCSON, ARIZONA




                       Sensors   data
                                 flow
                                             Transportation Systems

                                     Transportation Networks
                                          Traffic Signals
               Sensor media         Traffic Adaptive Signals **




   Transportation Flows
THE UNIVERSITY OF

                                  atlas
ARIZONA TRAFFIC MANAGEMENT WITH ITS
                    “RHODES” Adaptive Traffic Control
TUCSON, ARIZONA




                                  ON-LINE
                          OPTIMIZATION/SIMULATION
                                  MODELS




                                                       AUTOMATIC
  AUTOMATIC                                         DOWNLOADING OF
  UPLOADING                                           PHASE TIMES
OF SENSOR DATA
 THE UNIVERSITY OF


ARIZONA                                                       atlas
                          FRAMEWORK FOR ITS
 TUCSON, ARIZONA




                       Sensors   data
                                 flow
                                           Transportation Systems

                                     Transportation Networks
                                           Traffic Signals
                                    Traffic Adaptive Signals **
               Sensor media          Adaptive Ramp Meters *
                                     Variable Message Signs *
                                    Highway Advisory Radio **
                                 Congestion Information (WWW) *
                                   Transit Information (WWW)*


   Transportation Flows
 THE UNIVERSITY OF


ARIZONA
               TRAVELER INFORMATION
 TUCSON, ARIZONA
                                                       atlas
     A COMMUTER CHECKING
                         WITH ITS
         TRAFFIC CONDITIONS
           BEFORE LEAVING
                         WWW


                                    A TRAFFIC/SYSTEMS ENGINEER
                                        MONITORING TRAFFIC
                        EN-ROUTE            CONDITIONS
                        WIRELESS
                      INFORMATION
GPS-BASED                                         Sensor data
LOCATOR               CELL
                     PHONE
 THE UNIVERSITY OF


ARIZONA                                                        atlas
                          FRAMEWORK FOR ITS
 TUCSON, ARIZONA




                       Sensors   data
                                 flow
                                            Transportation Systems

                                     Transportation Networks
                                          Traffic Signals
                                    Traffic Adaptive Signals **
               Sensor media
                                     Adaptive Ramp Meters *
                                     Variable Massage Signs *
                                   Highway Advisory Radio **
                                 Congestion Information (WWW) *
                                  Transit Information (WWW)*
                                    Signal Preemption/Priority
   Transportation Flows               (Buses, EMUs, trains) *
                                      Speed Advisory Signs *
                                    In-vehicle Route Guidance
                                        Congestion Pricing
                                 CVO Fleet Operations/Tracking *
 THE UNIVERSITY OF


ARIZONA
 TUCSON, ARIZONA
                                FRAMEWORK FOR                       atlas
                              ITS + REMOTE SENSING
                       Sensors        data
                                      flow
                                                 Transportation Systems




               Sensor media
                                         Feedback
                                         & Actions




   Transportation Flows
 THE UNIVERSITY OF


ARIZONA
 TUCSON, ARIZONA
                          FRAMEWORK FOR                                      atlas
                       ITS + REMOTE SENSING
                     Remote Sensors                         data
                                                            flow
   Image                Image                                      Transportation
                                      Pattern recognition
 acquisition          processing                                      Systems


    Remote
    Sensor
                                                Feedback
    media
                                                & Actions




   Transportation Flows
 THE UNIVERSITY OF


ARIZONA
 TUCSON, ARIZONA
                                                           atlas
                     SENSORS in TRANSPORTATION
       OTHER DETECTORS
      • VIDEO DETECTORS
     • SONAR DETECTORS                   REMOTE SENSORS
     • RADAR DETECTORS
                             MANUAL SURVEYS       GPS-BASED
              MAGNETIC          & COUNTS          LOCATOR
            LOOP DETECTORS
                                                         CELL
                                                        PHONES




                                                OTHER SENSORS
                                                •TRAVEL PROBES
                                                 •DRIVER INPUTS
                                              •ROADSIDE BEACONS
 THE UNIVERSITY OF


ARIZONA
 TUCSON, ARIZONA
                        FRAMEWORK FOR                        atlas
                     ITS + REMOTE SENSING
   SO, HOW DOES REMOTE SENSING HELP?
• Each sensor is not constrained to be located at one point
   – can move with the “flow” (in security applications
      the sensor can follow suspicious movements)
   – can re-locate sensors where most needed (in case of
      monitoring congestion points)

• Can provide up-to-date traveler information, especially
      at disruptions and incidents
        – can provide information on the WWW
        – can provide information to en-route motorists in
           in-vehicle ATIS
 THE UNIVERSITY OF


ARIZONA
 TUCSON, ARIZONA
                        FRAMEWORK FOR                 atlas
                     ITS + REMOTE SENSING
       SO, HOW DOES REMOTE SENSING HELP? (contd.)
   • Can get better spatial measures such as turning ratios
     platoon dispersion, discharge rates, and travel times
      – better measures for wide-area dynamic traffic
         management (DTA-ATIS)
      – even better OD route volumes for transportation
         planning

   • Can be deployed and re-deployed when fixed detectors
          fail
      – for incident management
      – for evacuation management during floods and
                 disasters
 THE UNIVERSITY OF


ARIZONA                                                     atlas
 TUCSON, ARIZONA
                           CHALLENGES
   • There are three major challenges

              •Technical -- to integrate these sensors,
                     computers, communication systems,
                     people, infrastructure

              •Cost: Will the benefits justify the costs?

              •Acceptance -- by users, by providers, by
                     operators.
 THE UNIVERSITY OF


ARIZONA
 TUCSON, ARIZONA
                                  atlas




                     Questions?

				
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