shelley row director, its joint program office research and innovative technology administration...
TRANSCRIPT
Shelley RowDirector, ITS Joint Program OfficeResearch and Innovative Technology AdministrationU.S. Department of Transportation
Surface Transportation Weather Research & Development
2
Previous World
3
Current World
5
Trends
• Growing Congestion• Stagnant Safety• Limited Public Resources• Ever-growing expectations for instant
information• Explosion of Technology
6
Growing Congestion
Between 1982 and 2003:
103% increase in highway travel
Impacted by congestion
55% increase in the length of
Rush hour
7
Road Weather & Congestion
• Weather & Mobility on the Nation’s Highways– About 25% of non-recurrent
congestion on freeways is due to weather
– System delay is 1 billion hours per year
– Weather-related delay adds $3.4 billion to freight costs annually
(2 of 4)
8
Slow Pace of Deployment
• 2,435 ESS in US
• 162,373 miles in the National Highway System– One ESS for every 67 miles
• 980,968 miles of Federal-Aid Highways– One ESS for every 403 miles
• Distribution is spotty
• Doesn’t include 3,030,662 miles of non-Federal-Aid Highways
Weather conditions change within feet – not miles
9
Growing Expectations for Connectivity
• Consumers Experience– Connectivity all times, every where– Streaming video on cell phones
• Road Weather Managers Have
11
Road Weather Research Needs
• Road weather information– Clarus
– VII
• Decision Support Systems• Weather & Transportation Partnerships
– Public
– Private
ITS: Capturing Transportation’s Imagination through Technology
12
Road Weather Information
Route Specific Radio & TV
Broadcasts of Travel Conditions
More Effective Websites
Credible & Precise Travel Advice
Add Detail to HAR & VMS Spawn New
Technologies(PDA, cell)
Enhanced decision making toolsIn-vehicle
Information
Anytime, Anywhere Road Weather
Information
13
The Clarus System
State DOTRWIS Server
CollectorServices
QualityChecking
WebPortal
7 DayData Cache
MetadataCache
The Clarus System
State DOTRWIS Server
State DOTRWIS Server
State DOTGPS/AVL
VII Probe-Based Data
Nationwide Data Management System forSurface Transportation Environmental & Pavement Condition Observations
•Observations•Metadata•Quality Flags
Environment CanadaRWIN Server
14
Road Weather Information
• Vehicle Infrastructure Integration (VII)–New road weather observations
•Fill gaps in data•Different data from fixed sensors
–Tailored information into vehicle
15
Previous World
16
Future World: Vehicle Infrastructure Integration
• A nationwide communication PLATFORM between vehicles and roadside beacons
• A PARTNERSHIP between DOT, automobile manufacturers, and state and local government
• APPLICATIONS (including weather) that will transformationally improve safety and mobility
On-Board Equipment
Public user
Private user
Roadside Equipment
Network
On-Board Equipment
Local applications
17
VII Weather Example
Improved identification of precipitationand precipitation type
Today: Precipitation type is determined by airport observations (red circles) - few and far between!
VII enabled: Data (air temperature, and data from maintenance vehicles) available directly from vehicles
19
Fundamental Research Needed
999J Ambient Temperature and Speed Profile Along Dulles Toll Road on July 18, 2006
80
85
90
95
100
105
-65 -55 -45 -35 -25 -15 -5 5 15 25 35 45 55 65Road Segments
0.0
20.0
40.0
60.0
80.0
100.0Segment-Average TemperatureSegment-Average Speed
8:19AM DTR WB start
Westbound Eastbound
Ave
rag
e S
egm
en
t T
em
pe
ratu
re (
Fa
ren
hei
t)
Ave
rag
e S
egm
en
t S
pe
ed (
mp
h)
8:30 AM exitDTR WB
9:06 AMDTR EB
end
8:35 AM enterDTR EB
22
MDSS: The Bridge Between Communities
Winter RoadMaintenanceCommunity
MeteorologicalCommunity
•Strengthening Communication•Integrating Science & Best Practices•Improving Mobility & Safety
24
Partnerships
• Traditional partnerships– Transportation to transportation– Weather to weather
• New partnerships–Weather to Transportation–Private sector partners
•Weather community•Transportation community
25
Road Weather Research Needs
• Road weather information– Clarus
– VII
• Decision Support Systems• Weather & Transportation Partnerships
– Public
– Private
ITS: Capturing Transportation’s Imagination through Technology