TRANSPORTATION + ITS + REMOTE SENSING
description
Transcript of TRANSPORTATION + ITS + REMOTE SENSING
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atlasTHE UNIVERSITY OF
ARIZONATUCSON, ARIZONA
Pitu Mirchandani
Professor and Director, ATLAS Research CenterSystems and Industrial Engineering Department
The University of Arizona, Tucson, Arizona 85721
September, 2002
TRANSPORTATION+ ITS
+ REMOTE SENSING
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atlasTHE UNIVERSITY OF
ARIZONATUCSON, ARIZONA
• Transportation systems with ITS and Remote Sensing
• Transportation systems with ITS, especially sensor and communication technologies
• Provide a framework to discuss transportation systems
• Transportation service systems before ITS
OVERVIEW OF TALK
We will discuss:
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atlasTHE UNIVERSITY OF
ARIZONATUCSON, ARIZONA TRANSPORTATION PLANNING
(before ITS)
MANUAL SURVEYS& TRAFFIC COUNTS
Transport Planning& Network Design
MANUAL SURVEYS& TRAFFIC COUNTS
Transport Planning& Network design
TRANSPORTATION PLANNING
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atlasTHE UNIVERSITY OF
ARIZONATUCSON, ARIZONA
DOWNLOADOF TIMING PLANS
OPTIMIZATION/SIMULATIONMODELS
TRANSPORTATION MANAGEMENT(before ITS)
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atlasTHE UNIVERSITY OF
ARIZONATUCSON, ARIZONA
MANUAL SURVEYS& TRAFFIC COUNTS
Transport Planning& Network design
TRANSPORTATION PLANNING
DOWNLOADOF TIMING PLANS
OPTIMIZATION/SIMULATIONMODELS
TRANSPORTATION MANAGEMENT
BEFORE ITS
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atlasTHE UNIVERSITY OF
ARIZONATUCSON, ARIZONA
MAP
AN INCIDENT AT I6TH & CONN.AVE
TRAVELER INFORMATION(before ITS)
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atlasTHE UNIVERSITY OF
ARIZONATUCSON, ARIZONA
MANUAL SURVEYS& TRAFFIC COUNTS
Transport Planning& Network design DOWNLOAD
OF TIMING PLANS
OPTIMIZATION/SIMULATIONMODELS
MAP
AN INCIDENT AT I6TH & CONN.AVE
TRAVELER INFORMATION
BEFORE ITS
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atlasTHE UNIVERSITY OF
ARIZONATUCSON, ARIZONA FRAMEWORK FOR ITS
DecisionSystem
Sensor media
Transportation Flows
Data Gathering
dataflow
Feedback& decisions
Equipment Processing
Sensors
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atlasTHE UNIVERSITY OF
ARIZONATUCSON, ARIZONA SENSORS in TRANSPORTATION
INDUCTIVELOOP DETECTORS
GPS-BASEDLOCATOR
OTHER DETECTORS• VIDEO DETECTORS• SONAR DETECTORS• RADAR DETECTORS
CELLPHONES
OTHER SENSORS •TRAVEL PROBES•DRIVER INPUTS
•ROADSIDE BEACONS
MANUAL SURVEYS& COUNTS
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atlasTHE UNIVERSITY OF
ARIZONATUCSON, ARIZONA
Transportation Systems
Sensor media
Transportation Flows
Sensors
Data flow
Feedback& Actions
FRAMEWORK FOR ITS
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atlasTHE UNIVERSITY OF
ARIZONATUCSON, ARIZONA
Transportation Systems
Sensor media
Transportation Flows
Sensors
Data flow
WireTelephone line
FiberWireless (analog)Wireless (digital)
InternetWireless Internet
FRAMEWORK FOR ITS
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atlasTHE UNIVERSITY OF
ARIZONATUCSON, ARIZONA
Transportation Systems
Sensor media
Transportation Flows
Sensors dataflow
Feedback& Actions
FRAMEWORK FOR ITS
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atlasTHE UNIVERSITY OF
ARIZONATUCSON, ARIZONA
Transportation Systems
Sensor media
Transportation Flows
Sensors dataflow
Transportation Networks
FRAMEWORK FOR ITS
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atlasTHE UNIVERSITY OF
ARIZONATUCSON, ARIZONA TRANSPORTATION PLANNING
WITH ITS
MANUAL SURVEYS
Transport Planning& Network Design
Decisions
Sensor data
PLANNING &SIMULATION
TOOLS (E.G., DTA)
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atlasTHE UNIVERSITY OF
ARIZONATUCSON, ARIZONA
Transportation Systems
Sensor media
Transportation Flows
Sensors dataflow
Transportation NetworksTraffic Signals
Traffic Adaptive Signals **
FRAMEWORK FOR ITS
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atlasTHE UNIVERSITY OF
ARIZONATUCSON, ARIZONA
TRAFFIC MANAGEMENT WITH ITS “RHODES” Adaptive Traffic Control
ON-LINE OPTIMIZATION/SIMULATION
MODELS
AUTOMATICUPLOADING
OF SENSOR DATA
AUTOMATICDOWNLOADING OF
PHASE TIMES
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atlasTHE UNIVERSITY OF
ARIZONATUCSON, ARIZONA
Transportation NetworksTraffic Signals
Traffic Adaptive Signals **
Transportation Systems
Sensor media
Transportation Flows
Sensors dataflow
Adaptive Ramp Meters *Variable Message Signs *
Transit Information (WWW)*Congestion Information (WWW) *
Highway Advisory Radio **
FRAMEWORK FOR ITS
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atlasTHE UNIVERSITY OF
ARIZONATUCSON, ARIZONA TRAVELER INFORMATION
WITH ITS
A TRAFFIC/SYSTEMS ENGINEERMONITORING TRAFFIC
CONDITIONS
Sensor data
A COMMUTER CHECKINGTRAFFIC CONDITIONS
BEFORE LEAVING
WWW
GPS-BASEDLOCATOR CELL
PHONE
EN-ROUTEWIRELESS
INFORMATION
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atlasTHE UNIVERSITY OF
ARIZONATUCSON, ARIZONA
Transportation Systems
Sensor media
Transportation Flows
Sensors dataflow
Transportation NetworksTraffic Signals
Traffic Adaptive Signals **Adaptive Ramp Meters *Variable Massage Signs *
Highway Advisory Radio **Congestion Information (WWW) *
Transit Information (WWW)*Signal Preemption/Priority
(Buses, EMUs, trains) *Speed Advisory Signs *
In-vehicle Route GuidanceCongestion Pricing
CVO Fleet Operations/Tracking *
FRAMEWORK FOR ITS
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atlasTHE UNIVERSITY OF
ARIZONATUCSON, ARIZONA
Transportation Systems
Sensor media
Transportation Flows
Sensors dataflow
Feedback& Actions
FRAMEWORK FOR ITS + REMOTE SENSING
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atlasTHE UNIVERSITY OF
ARIZONATUCSON, ARIZONA
TransportationSystems
Transportation Flows
Remote Sensors dataflow
Feedback& Actions
RemoteSensormedia
Imageacquisition
Imageprocessing
Pattern recognition
FRAMEWORK FOR ITS + REMOTE SENSING
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atlasTHE UNIVERSITY OF
ARIZONATUCSON, ARIZONA
REMOTE SENSORS
MAGNETICLOOP DETECTORS
MANUAL SURVEYS& COUNTS
GPS-BASEDLOCATOR
OTHER DETECTORS• VIDEO DETECTORS• SONAR DETECTORS• RADAR DETECTORS
CELLPHONES
OTHER SENSORS •TRAVEL PROBES•DRIVER INPUTS
•ROADSIDE BEACONS
SENSORS in TRANSPORTATION
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atlasTHE UNIVERSITY OF
ARIZONATUCSON, ARIZONA
– can re-locate sensors where most needed (in case of monitoring congestion points)
• Each sensor is not constrained to be located at one point
– can provide information on the WWW
FRAMEWORK FOR ITS + REMOTE SENSING
SO, HOW DOES REMOTE SENSING HELP?
– can move with the “flow” (in security applications the sensor can follow suspicious movements)
• Can provide up-to-date traveler information, especially at disruptions and incidents
– can provide information to en-route motorists in in-vehicle ATIS
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atlasTHE UNIVERSITY OF
ARIZONATUCSON, ARIZONA
– for evacuation management during floods and disasters
• Can be deployed and re-deployed when fixed detectors fail
FRAMEWORK FOR 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
– for incident management
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atlasTHE UNIVERSITY OF
ARIZONATUCSON, ARIZONA
� Acceptance -- by users, by providers, by operators.
CHALLENGES
• There are three major challenges
� Technical -- to integrate these sensors, computers, communication systems, people, infrastructure
� Cost: Will the benefits justify the costs?
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atlasTHE UNIVERSITY OF
ARIZONATUCSON, ARIZONA
Questions?