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National Oceanic & Atmospheric Administration
Real-Time Transportation Infrastructure Information Systems: Applications
2
Outline
• Why NOAA is Here• NOAA’s Mobile Sensing
Experience• NOAA Applications of
Probe Vehicle Data• Challenges
3
Why NOAA is Here
• NOAA is responsible for protecting life and property and promoting safe and efficient commerce and transportation
• Existing national weather information is inadequate for highway operations
• Sensors on vehicles could provide continuous data on air and road surface temperature, visibility, precipitation, etc.
~1,400,000 weather-related highway crashes and ~7,000 deaths per year
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Experience: In the Air
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Experience: At Sea
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Experience: On Land
• Three fundamental deficiencies today– Lack of transportation system
relevant weather observations– Lack of understanding on how
to apply weather information in decision making
– Lack of capabilities for predicting and/or assessing surface level weather phenomena
• VII opens the opportunity for empirical data gathering not possible otherwise
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VII Decision Making Opportunities
– Immediate response(e.g. black ice, fog banks) conveyed in seconds to minutes
– Tactical response (e.g. thunderstorms, flash floods) forecast in minutes to hours
– Strategic response (e.g. blizzards, floods, heat) forecast in hours to days
• VII enables enhanced response and planning through improvements to weather observations, models, and predictions
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Probe Data
• GPS Data• Turn Signal• Speed• Odometer• Wipers• Headlights• Hazard Signal
• Traction Control• ABS• Airbag• Rain Sensor• Sun Sensor• Fog Lamps• Temperature
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HEAVY RAIN
GO SLOW
LOW VISIBILITY
MILE 20
MILE 25
RSU
VII Application: Heavy Rain/Low Visibility
Weather Indicators:
• Are Wipers on? What Rate?
• Are Headlights on?
• Is the Rain Sensor Detecting Rain?
Responses:In Vehicle Display Overhead “Slow Down” Sign
Driver ActionTake Immediate Action
10MILE 24
MILE 25
WARNING
GO SLOW
ICE AHEAD
VII Application: Ice
Weather Indicators:• Is traction control engaged?• Is the temperature near
freezing?• Are Hazard Lights on?
Responses:In Vehicle Display Overhead “Slow Down” Sign
Driver ActionTake Immediate Action
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NOAA Applications of Probe Vehicle Data
• Observations to assist warning decisions
• Input to weather models• Verification of warnings
and forecasts• Calibrates remote
sensors• Dissemination of
information back to the vehicle
State DOTServer
National Surface Transportation Weather Observation and
Forecast System
NOAA
Forecasts -Use for General
Awareness
Watch/Warning
/Advisory-county- or area-
specific
DMSRoad Section
Specific
VIIPoint
Private or Public Interface
Input
Output
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Challenges
• Overcoming technical obstacles– Translating observations into meaningful
information– Rural vs Urban
• Addressing privacy issues
• Integrating data – Other systems and applications
• Pulling together expertise– Partnerships are crucial for success
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NOAA Priorities
Focus on Public Safety• Validate requirements• Maximize existing data and
services• Work with transportation and
weather partners • Research to operations• Participate in Clarus & VII
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Conclusion
• Probe data can: – improve forecast decision
making, weather model predictions, forecast verification, remote sensor calibration
– enable a feedback loop bringing weather information to the dashboard
More info available at: surfaceweather.noaa.gov
National Oceanic & Atmospheric Administration
Real-Time Transportation Infrastructure Information Systems: Applications
1315 East-West Highway, Silver Spring, MD 20910 301-713-3222Charlie.Challstrom@noaa.gov
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