April 16, 1999
description
Transcript of April 16, 1999
Application of Intelligent Transportation Systems (ITS) for Statewide Traffic and Evacuation Monitoring and Management in
Louisiana
April 16, 1999
Who Are We?
• Department of Civil and Environmental Engineering– Dr. Marc Levitan, Structural Engineering– Dr. Brian Wolshon, Transportation Engineering
• Remote Sensing and Image Processing Laboratory– Chris Schwehm, Digital Processing
Louisiana State University
What is ITS?
– ATMS - Video Surveillance, Incident Detection and Response, Adaptive Traffic Signal Systems
– ATIS - Changeable Message Signs, HA, In-vehicle Information, Dynamic Route Guidance
– CVO - Safety Assurance, Automated Credential Administration, Weigh-in-Motion
– AVCS - Collision Avoidance, Road Condition Sensing, Advanced Guidance
Application of Advanced Information and Communication Technologies for
Transportation
Limitations of Current Systems Used in Louisiana
• Limited Statewide Traffic Data Collection– Limited to Hourly Volume and Average Speed– Not “Real-Time”– Not Easily Accessible and Usable
• No Roadway Specific Weather Data– Road Icing, Fog Conditions, Wind Speed
• Limited Coordination Between OEP & DOTD– Evacuation for Natural and Technological Hazards
What Do We Suggest?
• Collect Data Statewide– Traffic, Weather, Road Surface Conditions
• Process this Information in Real-Time– Automatic and Immediate Updates
• Make it Available– Use the World Wide Web
– Decision Makers and the Public
• Present information in a Clear and Useable Format– Graphical Interface (point and click)
What Will It Do?
If such data were available in an easily accessible form, it could have a tremendous positive impact on– Hurricane Evacuations– Incident Detection and Management– Traffic Management– Air quality attainment?– + many others
System Requirements
• Provide data on– Traffic– Road surface conditions– Weather conditions
• Regional or statewide coverage of key routes
• Provide data in real-time or near real-time
System Requirements, cont’d.
• Allow simultaneous access to all officials in need of the data– DOTD, OEP, State Police– Local counterparts
• Provide feedback (management) capabilities
• Allow public access to selected portions
Problem Solution...
TRICOMM
Total Roadway
Integrated Condition
Monitoring & Management
System Overview
Traffic, WeatherRoad Surface Data
Central Processor
Users
InternetInternetPhone modemCellular modemSatellite PagingOther
System Overview
Traffic, WeatherRoad Surface Data
Central Processor
Users
Traffic Management
InternetInternetPhone modemcell modemsatellite pagingother
System Overview- Basic Conditions Monitored
• Traffic Flow– # of vehicles
– speed
– type
• Road Surface– temperature
– water depth
• Weather– temperature
– relative humidity
– wind speed and direction
– visibility
– rain
System Overview- Optional Conditions Monitored
• Water Depth/Rate of rise in adjacent floodprone areas
• HAZMAT – chemicals– radiation
• Other
Monitoring Station
User Interface
H
WW
Highway Advisory Radio Station 3
Location: I-12 at Oneal LaneFrequency: 1670 amStatus: OperationalFlash Status: No Flash
Current Message:
Enter New Message: Flash URGENT
Interstate 12 westbound reduced to one lane at Airline Highway due to an accident in the right lane. Please expect delays.
Interstate reconstruction project completed. All traffic lanes are open
5,805
4,123
5,339
2,364
12,445
2,745
11,008
18,873
47,665
15, 037
Clearance Area
Enter Clearance Area
Round Table Discussion
• Will this type of system be useful (and used)?
• Weaknesses?
• Changes?
• Improvements?