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Observation Data Requirements for Surface Transportation

Observation Data Requirements for Surface Transportation. 3 rd National Surface Transportation Weather Symposium Tysons Corner, VA July 26, 2007. Paul Pisano Team Leader, Road Weather Management Federal Highway Administration. Topics to discuss. Adequacy of: Sensors (coverage, type)

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Observation Data Requirements for Surface Transportation

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  1. Observation Data Requirementsfor Surface Transportation 3rd National Surface Transportation Weather Symposium Tysons Corner, VA July 26, 2007 Paul Pisano Team Leader, Road Weather Management Federal Highway Administration

  2. Topics to discuss • Adequacy of: • Sensors (coverage, type) • Archiving technologies, techniques • Robustness of: • Collection processes • Assimilation processes • Prospect of new or advanced sensors to meet needs • Extent to which we can detect/predict extreme weather events

  3. ESS Owned by State DOTs

  4. State DOT ESS Available via NOAA MADIS 8 2 103 12 23 62 92 59 68 41 32 53 169 54 60 31 47 37 66 109 39 54 14 48 40 1,331 ESS available via MADIS 25 State DOT Networks + E-470 Highway Authority, Colorado

  5. Add Detail to HAR & VMS Credible & Precise Travel Advice Route Specific Radio & TV Broadcasts of Travel Conditions Clarus More Effective Websites Enhanced decision making tools Anytime, Anywhere Road Weather Information Spawn New Technologies (PDA, cell) In-vehicle Information

  6. The Clarus Initiative • Clarus is an R&D initiative to demonstrate and evaluate the value of “Anytime, Anywhere Road Weather Information” that is provided by both public agencies and the private weather enterprise to the breadth of transportation users and operators. • To do so, we needed to create a robust • data assimilation, • quality checking, and • data dissemination system • that can provide near real-time atmospheric and pavement observations from the collective states’ investments in environmental sensor stations (ESS).

  7. The Clarus System Environment Canada RWIN Server State DOT GPS/AVL State DOT RWIS Server VII Probe- Based Data State DOT RWIS Server State DOT RWIS Server Collector Services • Observations • Metadata • Quality Flags Quality Checking 7 Day Data Cache Web Portal Metadata Cache The Clarus System Nationwide Data Management System for Surface Transportation Environmental & Pavement Condition Observations

  8. Vehicle-based Elements • Atmospheric Pressure • Ambient noise level • Headlights • Relative humidity • ABS • Traction control • Stability control • Pavement temperature • Brake • Hours of operation • Elevation • Accelerometer data • Vehicle speed • Heading • Rate of change of steering wheel • Exterior temperature • Windshield wiper setting • Rain sensor • Sun sensor • Adaptive Cruise Control (ACC) radar

  9. Clarus (or other assimilator) Info. Service Providers QCh’d obs Weather Data Translator VII Data Other Weather Data (Radar, ASOS) VII – A New Road Weather Source Road Weather Obs (fixed)

  10. Research Needs & Challenges Data Volume, Fusion and Quality

  11. Where are the gaps? • Sensors • There are gaps in sensing, who should fund? • Road Condition • What about phased array? • Observations Networks • Build interest/reliance within transportation agencies • Ownership of data / liability • Mobile sensing • Weather Data Translator • Path to operations

  12. Contact Information • Paul Pisano • Team Leader, Road Weather Management • Phone: 202-366-1301 • Email: Paul.Pisano@dot.gov

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