1 clarus: the national surface transportation weather observing and forecasting system roemer m....
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Clarus: The National Surface Transportation Weather Observing and Forecasting System
Roemer M. AlfelorFHWA Office of Transportation OperationsWashington DC
December 1, 2004MnDOT Regional Traffic Management CenterRoseville, MN
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FHWA Road Weather Management
Objectives: To better understand the impacts ofweather on highways, and develop and deploystrategies that can mitigate those impacts, throughthe following activities:
1. Partnership and Collaboration2. Customer Service and Outreach3. Tools and Technologies
• Maintenance Decision Support• Weather-Responsive Traffic Management • Road Weather Observing/Forecasting Systems
4. Program Management and Evaluation
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Clarus Observing System
• What – Demonstration of a regional road
weather observation and forecasting system, and partnership to establish a nationwide road weather observation network.
• Why– To reduce the impact of adverse
weather on all road and transit users and operators.
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Clarus Context Diagram
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Clarus Use Case Scenario
Service Provider
Traffic Operations Center
External Weather Data Sources
Vehicle Data Collector
ESS Data Collector/RWIS
Patrol or Maintenance
Vehicle
ESS Equipment
Provide Nowcast
and Forecast
Provide Other
DecisionSupport
Info
Provide ESS Data
Provide Vehicle
Data
Integrate and Transform
Service Provider Data
Network Operator
Clarus
TransferQuality
Controlled Data
CollectExternal Weather
Data
Compare RWIS and
Vehicle Data with
External Weather Data
Collect, Check, Flag
and SendRWIS Data
Collect, Check, Flag
and SendVehicle
Data
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Clarus
Route Specific Radio,TV and Internet Broadcasts of Travel Conditions
Credible &Precise
Travel Advice
Add Detail toHAR & VMS
Spawn New technologies
(in vehicle, PDA)
Create New and More Effective Ways to Convey Surface Transportation Weather Information
Clarus System Applications
Enhance decision making tools
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• A stable and reliable access to integrated surface transportation weather related observations
• Continuous quality control with feedback to customers
• Data available in one common format with full metadata
• Data provided without post-processing, ready to be incorporated into value-added products including weather and traffic models as well as decision support systems
• Support for the inclusion of new technologies such as vehicle-based sensing technologies, surface visibility information from traffic cameras, and remote sensing technologies
Benefits of Clarus
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Clarus Roadmap
Stakeholder Coordination
System Design
FY04 FY05 FY06 FY07 FY08 FY09
Multi-State RegionalDemonstration
Final Design and Deployment
Tra
ck 2
Tra
ck 3
Tra
ck 4
Tra
ck 1
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1. Stakeholder Coordination – ICC established and first meeting held in Sept.
04
1. Concept of Operations– User Needs and Use Case Drafts(on website)– ICC Meeting/ConOps Review 03/02/05– Final Draft 05/06/05
2. System Design – RFP issued 11/19/04– 20 Months beginning on or about 06/01/05– Systems Engineering stages following Concept of
Operations– Proof-of-Concept
Clarus Roadmap - Status
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• Who is this open to?– Open to all -- Meteorological and
Transportation Communities.
• What level of activity is expected?– Up to the individual. ICC is meant to
provide the stakeholders a voice.
• Is everything left to consensus?– The ICC Management Team makes final
decisions with input from ICC.
Clarus ICC - Membership
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DOT Consultant Team
Clarus Initiative Management Team
Project Task Force
Project Task Force
Clarus Initiative Coordinating
Committee (ICC)
Project Task Force
• USDOT
• NOAA
• ITS America
• AMS
• ITE
• AASHTO
• TRB
Clarus ICC - Organization
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1. Vehicle Infrastructure Integration and Data Collection Enhancement
2. CCTV Technologies for Road Condition and Visibility
3. Phased Array Radar for Near Surface Observing
4. Remote Sensing from NASA Satellites
Clarus Applied Research
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1. ESS Siting Guidelines
2. Missouri DOT Weather Response System for Traffic Management
3. Integration of Weather Information in TMC’s and TOC’s
4. Maintenance Decision-Support System (MDSS) Technology Transfer and Pooled Fund Study
5. Empirical Studies on Weather and Traffic
6. Integrating RWIS Data into MADIS
Related FHWA Activities
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• Paul Pisano – Team Leader, Road Weather Management
Program– paul.pisano@fhwa.dot.gov, 202-366-1301
• Roemer Alfelor– Transp. Specialist, Road Weather Mgmt. Program– roemer.alfelor@fhwa.dot.gov, 202-366-9242
• James Pol– Transp. Specialist, ITS Joint Program Office– james.pol@fhwa.dot.gov, 202-366-4374
• Program Web Sites– http://www.fhwa.dot.gov/weather/– http://www.its.dot.gov/– http://www.clarusinitiative.org
Contact Info
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