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?