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4-1
Lesson 4
Technology:
Resources and Implementation
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4-2
Learning Outcomes
Identify the technical and institutional resources for implementing Road Weather Information Systems (RWIS)
• Identify key technological resources available to you for making road weather decisions
• Identify the challenges faced in implementing road weather
technology
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4-3
Technology
• Resources
• Implementation Challenges
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4-4
RWIS
• 1970s: Devices first tested on bridges
• 1980s: Introduced to the general highway environment
• Today: Refers to a spectrum of resources
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4-5
Components of RWIS
• Environmental Sensor Stations
• Processing Systems
• Forecasts and Models
• Dissemination
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4-6
Environmental Sensor Station
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4-7
Types of Data Collected
• Air temperature
• Chemical presence in roadway
• Humidity
• Pavement temperature
• Precipitation: amount, rate and type
• Other?
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4-8
RWIS Processing Systems
1: Road Sensors
2: Sensors & RPU
3: CPU/Server
4: End User
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4-9
Forecasts and Models
• Air temperature
• Pavement temperature
• Precipitation
• Wind forecast
• Snow accumulation
• Pavement icing
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4-10
Dissemination
FOGAHEAD
511
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4-11
Benefits of RWIS
Safety
MobilityEconomic Vitality
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4-12
Data Sharing Issue: RWIS
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4-13
RWIS Review
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4-14
Additional Resources
• Thermal Mapping
• Satellite Imagery
• Mesonet
• Decision Support System (DSS)
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4-15
Thermal Mapping
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4-16
Satellite Imagery
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4-17
Mesonets
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4-18
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4-19
Technology Implementation
Challenges• Technical
• Universal Standards
• Personnel
• Thresholds
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4-20
Identify the technical and institutional resources for implementing Road Weather Information Systems (RWIS)
• Identify key technological resources available to you for making road weather decisions
• Identify the challenges faced in implementing road weather
technology
Review: Learning Outcomes