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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

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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 randy.butler@dot.gov (202) 366-9215

Paul Belella – RTTM/DRG Project Manager p.belella@delcan.com (703) 752-6060 x104

Ron Schaefer – C-TIP Project Manager schaeferrl@saic.com (618) 257-8435