Intelligent Transportation Society of Connecticut 14 th Annual Meeting September 28, 2011
Jan 18, 2015
Intelligent Transportation Society of Connecticut 14th Annual Meeting September 28, 2011
Intelligent Transportation Society of Connecticut 14th Annual Meeting September 28, 2011
FHWA +10 yrs - program support: Road Weather Management
Emergency Transportation Operations
Real – Time Data Management
+ 20 yrs Illinois Dept. of Transportation:
Operations, Maintenance, & Construction
ITS Project Manager
CEC Officer/Seabees & Engineer Mentor
Ray Murphy
Weather Technologies…
Clarus and the Connected Vehicle
Ray MurphyFederal Highway Administration
September 28, 2011 Intelligent Transportation Society of Connecticut
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Existing RWIS installations:1. East Hartford2. Middletown3. Groton4. New London5. Lebanon6. Sikorsky Bridge7. New Haven8. Stamford9. North Canaan10. Torrington11. Avon Mountain12. Seymour13. Danbury
Road Weather Information System (RWIS)Environmental Sensor Station (ESS)
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Environmental Sensor Stations
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2,253 Sensor Stations (ESS) 52,471 Individual Sensors
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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 transportation users and operators.
• To do so, FHWA created 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).
www.clarusinitiative.org
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The Clarus System A database management system for
all surface transportation weather observations in North America
One database removes borders
Provides advanced quality checking for both atmospheric & pavement data
Includes extensive metadata
Easy access via web portal & subscription
2011 National ITS Update
www.clarus-system.comFHWA Road Weather Management Program, in conjunction with the US DOT ITS Joint Program Office established Clarus in 2004 to reduce the impact of adverse weather conditions on surface transportation users. Clarus is the 21st Century’s answer to the need for timely, high-quality road weather information.
Participation Status for Clarusas of September, 2011
CanadianParticipation
Clarus Connection Status
Local ParticipationCity of Indianapolis, INMcHenry County, ILCity of Oklahoma City, OKKansas Turnpike Authority Parks Canada
Sensor & Station Count2,253 Sensor Stations (ESS)52,471 Individual Sensors 81 Vehicles
Connected (37 States, 5 Locals, 4 Provinces)
Connected plus vehicles (1 state)
Pending (4 States, 3 Locals, 1 Province)
Considering (3 States, 1 Local)
*1st time showing mobile data sources!
*
*Intelligent Transportation Society of Connecticut
Over 75% of State DOTs Participate in Clarus
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Clarus System Observations
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Clarus Users in 2010
4993 unique addresses gaining access (3,524,702 hits) from 67 countries government agencies (federal, state, local) academic institutions weather providers TV stations private sector firms unknown sources (Internet providers, etc.)
Clarus Users in 2009 - 314 unique addresses gaining access (59,000+ hits) from 19 countries
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Clarus Survey
Conducted by ITSA from 15 June - 15 July 2011
Intent was to increase understanding of how Clarus is used by system customers
28 Participants: 13 State DOTs6 private sector companies4 academic institutions3 Federal agencies1 weather service provider 1 transit agency
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Clarus Access Methods
Map: 48%
On-demand request: 26%
Subscription: 22%
Other: 4%
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New Data Preferences
Mobile Data: 81%
Air Quality: 50%
ASOS/AWOS: 46%Other: 20%
Response Frequency
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Clarus System Survey - Summary
Clear primary indicators:
State DOTs are primary users
Main use of data is monitoring current weather
Map is the main access method
Mobile data most desired of new sources
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Clarus Regional Demonstrations
Ensure the Clarus System works as designedDemonstrate the ability of the Clarus System to
process and provide data from large numbers of Environmental Sensor Stations (ESS)
Promote/educate on metadata collection
Foster proactive transportation system management in response to the weather
Encourage improved private sector services for road weather information enabled with data from the Clarus SystemNew software GOTS/open source
Objectives
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Clarus Regional Demonstration
1. Enhanced Road Weather Forecasting Enabled by Clarus
2. Seasonal Load Restriction Tool
3. Non-winter Maintenance Decision Support System
4. Multi-state Control Strategy Tool
5. Enhanced Road Weather Content for Traveler AdvisoriesState Transportation Agency Partners
Mixon Hill Team includes IA, IL & IN
Scenarios 1, 3, 4
Meridian Team includes ID, MT, WY, ND, SD & MNScenarios 1, 2, 5
5 Use Case Scenarios
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Assess the impact of Clarus road weather observations (RWIS/ESS data) on various weather and road-weather models
Provide Clarus-enabled forecasts to the four use case scenarios that use applications and decision support tools
Primary Objectives
Use Case #1: Enhanced Road Weather Forecasting Enabled by Clarus
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Quicker agency deployment
Multi-state interaction & awareness
• Enables regional restrictions
• Uses established state notification formats & procedures
Restriction Generation
Current Seasonal Load Restriction (SLR) by county Overview A multi-state view of active SLR information
Web-Client…
• State participants found value in . . .– Multiple displays of sub-pavement conditions– Site specific sub-pavement profile forecasts– Less ad-hoc approach potential– Multi-state display of restriction status
Use Case #2: Seasonal Load Restriction Tool
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Use Case #3: Non-winter Maintenance and Operations Decision Support Tool
Primary Objectives
Clarus SystemNon-winter
DSSTool
Weather Service Provider
Input Configuration
System Configuration
ExistingLegend: NewSystem
Boundary
Use Case #3 Non-winter Maintenance and
Operations Decision Support Tool
Output Configuration
UserWorkstations
Other Data Provider
– Continue to bridge the current gap between road weather information and proactive maintenance
– Expand decision support beyond snow and ice control
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To provide data and strategies which will improve the coordination between agencies with respect to the imposition of controls and dissemination of associated advisories.
This coordination will assist agencies in:
proactively responding to situations,
allow for timely dissemination of safety-related information, and thus mitigate the impact to travelers.
Objectives…
i.e. chemical spill – tool monitors the weather data – chemical plume – general process graphic
Use Case 4: Multi-state Control Strategy Tool
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Services for current and predicted pavement conditionsExpands traveler planning with
future conditions
Delivered through state DOT website
Generate enhanced pavement condition information for travelers using Clarus data & enhanced forecasts from UC1
Support for multi-state trip planningConnect state 511 system info
Use Case 5: Enhanced Road Weather Content for Traveler Advisories
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Good Driving ConditionsFair Driving ConditionsDifficult Driving ConditionsRoad Closed/BlockedUnknown
Observed Road Conditions
Use Case #5
May Change from Good to Fair Driving ConditionsMay Change from Good to Difficult Driving Conditions
Sensors indicate Conditions May Vary From Observed Road Conditions
Enhanced Road Weather Content for Traveler Advisories
Web-Portal
Analysis Suggests Road Conditions
Connected Vehicles and Weather The Vehicle Data Translator (VDT) Version 3.0
Weather Observations from Connected Vehicles
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The Connected VehicleImproving Road Weather Awareness
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Connected Vehicle Applications
• Safety– Collision warning– Traffic signal violation warning– Emergency notification
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• Mobility– Adaptive traffic signals– Intermodal transfers– Event and emergency planning/response– Parking location assistance
• Environmental– Eco-routing– Multi-modal routing– Adaptive roadway lighting– Smart intersections
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Connected Vehicle ScenariosDaily operations - Recurring congestion and peak ridership conditions (i.e., the baseline for activities)
Major traffic incidentExtended closures/fatalities/ major structural damage occurring on either freeway or arterials with impacts for freeway, arterial, transit, and parking management
Major EvacuationMajor evacuation of large numbers of people caused by unpredictable events (e.g., wild fire, terrorist attack)
Major Winter Weather EventMajor winter weather event (ice and snow) with a regional impact
Special EventPlanned major event impacting corridors and downtown area
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Obtain a thorough picture of current weather and road conditions by including mobile sources• Higher resolution observations that spatially
augment fixed sensors• Take advantage of existing standards and on-board
sensors
Improve weather-related decision support tools to mitigate safety and mobility impacts of weather• Based on ability to better detect and forecast road
weather and pavement conditions
Weather & the Connected Vehicle
Objectives…
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Weather Observations from Connected Vehicles
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1. Develop and improve the Connected Vehicle “Anytime, Anywhere Road Weather Information”
2. Better Characterization of current weather and road conditions
3. Accurate Quality Checking and/or Quality Control of vehicle data
4. Development of inferred road segment specific weather and road-weather information for end-user applications
Vehicle Data Translator (VDT)
Objectives…
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Vehicle Data Translator (VDT)
Mobile data
ingesters
Parsed mobile data
Output data
handler
QC Module
Segment module
Ancillary data
ingesters
Basic road segment data
Output data
handler
Inference Module
Advanced road segment data
Output data
handler
Apps and Other Data Environments
Stage I Stage II Stage III
VDT 3.0
Ancillary: Radar, Satellite, RWIS, Etc.
QC Module
QC Module
Vehicle Data Translator (VDT) – Version 3.0
Mobile data
ingesters
Parsed mobile data
Output data
handler
Apps
Stage I Ingest vehicle data from aftermarket sensors
Data parsed, sorted/binned Light Quality Control Sorted by time, road segment
and grid cell Segments & grids user defined
All processed data available for other applications
Stage I
Vehicle Data Translator (VDT) – Version 3.0
QCh Module
Statistics
module
Ancillary data ingeste
rs
QC’d data, Basic road segment data
Output data
handler
Apps
Stage II
Ancillary: Radar, Satellite, RWIS, Etc.
Ingest ancillary data for QC and Stage III
Quality Checks From Clarus: Sensor Range,
Spatial, Climate Range
New Mobile Data Tests: Data Filtering (tunnel, slow speeds), Model Analysis, Neighboring Vehicle, Combined Algorithm
Combines point data into basic road segment products Temp range, speed, etc
Stage II
Vehicle Data Translator (VDT) – Version 3.0
Inference
Module
Advanced road segment data
Output data
handler
Stage III
More sophisticated road impact information
Precipitation Type and Intensity: combines basic vehicle (e.g. wiper, temp), weather radar and satellite data
Visibility: combines basic vehicle (e.g. headlight, wiper, temp), satellite and fixed weather station data
Pavement Condition: combines more vehicle (e.g. ABS, traction, etc) , weather radar and satellite
Apps
Stage III
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What Can You Do With VDT-based Data?
There are any number of road weather dynamic applications that could use vehicle-based observations:
State DOT-based applications
Transportation-specific applications
Broad Weather & Transportation applications
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State DOT-based Applications
Observation assimilation□ Fill in the gaps between
fixed stations□ Collect real-time pavement
temperatures
Maintenance Decision Support□ What are the current roads conditions?□ Accurate pavement temperature
modeling
Manage Maintenance Actions□ End of Shift Reports□ Materials Management
VDT-based data
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VDT-based weather alerts: Impending weather hazards Alerts from other vehicles Re-routing
Transportation-specific Applications
*Simulated screen –
designed to not distract the driver
*
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Winter Maintenance – Which roads have been treated?
Tornado Warning! I70 Denver to LimonDelay Until 3:30pm
Route Specific Impact Warnings for…
School Buses
Truckers EMS
Broad Transportation ApplicationsVDT-based data
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Numerical Weather Modeling
Traffic Modeling and Alerting
Weather Modeling – complex terrain
Other surface transportation users
Weather-related Applications
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Future - Optimized Winter Maintenance
• Use of Connected Vehicle network and data allows more effective and efficient deployment of pre-treatment, treatment, and plowing operations
• Local weather information from Connected Vehicle network– From vehicles:
• Temperature, barometric pressure, precipitation sensors, head lights
• Activation of ABS, Stability control, traction control– From roadside equipment:
• Pavement temperatures, humidity, etc.
• From on-board equipment in maintenance vehicles– Application rates– GPS, Time
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Intelligent Transportation Society of Connecticut
Clarus
Connected Vehicle Data
Capture
VDT(NCAR)
State DOT & Private Vehicle Data
Other Connected Vehicle Applications
Integrated Mobile Observing & Dynamic Decision Support
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FHWA Road Weather Mgmt. Team
Paul Pisano, Team Leader Dale ThompsonFHWA Office of Operations USDOT RITA, JPO202-366-1301 [email protected] [email protected]
Roemer Alfelor C.Y. David YangFHWA Office of Operations FHWA Off. of Operations R&D202-366-9242 [email protected] [email protected]
Gabriel GuevaraRay MurphyFHWA Office of Operations FHWA Off. of Tech. Services202-366-0754 [email protected] [email protected]