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C-TIP Real Time Traffic Monitoring (RTTM) and Dynamic Route Guidance (DRG). In association with:. Talking Freight Seminar November 17, 2010 Paul Belella. Agenda. Project Overview RTTM & DRG Concept RTTM Overview DRG Overview RTTM & DRG Functional Layout RTTM & DRG Operation - PowerPoint PPT Presentation
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C-TIP Real Time Traffic Monitoring (RTTM) and Dynamic Route
Guidance (DRG)
Talking Freight Seminar
November 17, 2010Paul Belella
In association with:
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Agenda
Project Overview RTTM & DRG Concept RTTM Overview DRG Overview RTTM & DRG Functional Layout RTTM & DRG Operation RTTM & DRG Schematic Important Factors
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Project Overview
Primary Objective: Make tailored real-time traffic information and route guidance available to motor carriers to mitigate congestion and reduce delay
Major Project Components Design and Development of RTTM Module Design and Development of DRG Module Implementation of both in Kansas City
Connection with C-TIP Two of several components Fully integrated with other modules Scalable and transferable to other locations
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RTTM & DRG Concept
Commercial Cellular Network
Smart PhoneEn-route Truck
RTTM/DRGRoadway Traffic Data
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RTTM Overview
Telemetry Processor Receive telemetry data Locate trucks on routes
Traffic Interfaces Receive traffic information from KC Scout & Navteq Calculate link speeds and travel times
Traffic Report Generator Formulate trip-specific travel time reports Use of current travel time calculations
IMEX/WDU Interface Receive requests Forward travel time info for dissemination to trucks
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DRG Overview
Primary Objective: Extend the RTTM functionality to provide navigation information to help trucks avoid congestion and minimize travel time
Approach Calculate “best route” from location to destination Build on RTTM and WDU applications and devices Leverage latest in dynamic routing research and practical applications Integrate fully with C-TIP
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RTTM & DRG Functional Layout
Traffic Management Center
Roadway Sensors
Eyewitness Reports
Incident Reports
Traffic Data
Traffic & Route Data
RTT
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DR
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RTTM & DRG Operation
Primary Route
Alternate Route #1
Alternate Route #2
At Decision Points:• 3 miles from re-route point• Device requests travel info• RTTM/DRG execute trip calculations
• Primary route• Alternate routes
• RTTM/DRG advise about shortest trip (audio notification only)
At Origin:• Driver enters destination• Driver requests travel info• RTTM/DRG execute trip calculations
• Primary route• Alternate routes
• RTTM/DRG advise about shortest trip
Throughout Trip:• Device reports
• Location• Heading• Speed
• Device requests travel info• Visual display is locked out for safety
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RTTM & DRG Schematic
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Important Factors
Collecting the right data Multiple sources (trucks, roadway sensors, etc.) Accurate depiction of current conditions on roads of interest
Packaging data into useful information Designed to properly interpret the data available to it Formulating information that can be confidently acted upon
Making information available when it is needed The intended use underscores importance of timeliness End users will need to interpret the information and formulate decisions
quickly
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Important Factors
DRG provisioning requirements Accurate input data (reliable travel time/speed reporting) Timely input data (low data latency) Reliable historic data (for comparison to current data) Rapid alternatives calculation (for quick response to user requests) Predictive travel time modeling (to compensate for changes during trip) Accommodation for roadway limits (i.e., restricted routes, geometric
constraints, clearances)
Significant challenges Validating DRG output Providing useable output to drivers Accommodating human behavior variables Getting truckers to trust DRG recommendations
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Project Contacts
Randy Butler – FHWA Project Manager [email protected] (202) 366-9215
Paul Belella – RTTM/DRG Project Manager [email protected] (703) 752-6060 x104
Ron Schaefer – C-TIP Project Manager [email protected] (618) 257-8435