T he fhwa p rogram for p rototyping a dvanced d ecision s upport for w inter r oad m aintenance
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T HE FHWA P ROGRAM FOR P ROTOTYPING A DVANCED D ECISION S UPPORT FOR W INTER R OAD M AINTENANCE. Steve Beningo Rural Intelligent Transportation Systems Specialist Midwestern Resource Center Federal Highway Administration. Maintenance Decision Support System Objective.

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T he fhwa p rogram for p rototyping a dvanced d ecision s upport for w inter r oad m aintenance

THE FHWA PROGRAMFOR PROTOTYPING ADVANCED DECISION SUPPORT FOR WINTER ROAD MAINTENANCE

Steve Beningo

Rural Intelligent Transportation

Systems Specialist

Midwestern Resource Center

Federal Highway Administration


Maintenance decision support system objective
Maintenance Decision Support System Objective

The objective of the Maintenance Decision Support System (MDSS) project is to produce a prototype tool for decision support to winter road maintenance managers.


SENSORS

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SALT USAGE

OBSER-

VATIONS

FORECASTS

MATERIALS

CONSTITUENTS

EXPERIENCE


The maintenance decision support system
The Maintenance Decision Support System

  • Will be based on leading diagnostic and prognostic research systems of weather and road behavior.

  • Will be non-proprietary, thus the intellectual content contained in the MDSS prototype will be available for Federal and private applications.



Maintenance decision support system approach
Maintenance Decision Support System Approach

  • Employ National Labs to develop prototype modules

    • Iterative development with users and system deployers

    • Based on open systems principles

  • Field test


Maintenance decision support system project goal
Maintenance Decision Support System Project Goal

To develop a prototype capability that:

  • Capitalizes on existing road and weather sources.

  • Augments data sources where they are weak.

  • Fuses data to make an open, integrated and understandable presentation of current environmental and road conditions.

  • Generates diagnostic and prognostic maps of road conditions.


Maintenance decision support system project goal1
Maintenance Decision Support System Project Goal

To develop a prototype capability that:

  • Provides a display capability on the state of the roadway.

  • Provides a decision support tool, which provides recommendations on road maintenance courses of action.

  • Uses a single platform, with simple and intuitive operating requirements.

  • Provides a readily comprehensible display of results and recommended courses of action.


Development schedule
Development Schedule

  • FY 2001 – The Federal Highway Administration works with State Departments of Transportation and the private sector on the development of a prototype Maintenance Decision Support System.

  • FY 2002 and FY 2003 – Demonstration and evaluation of selected components of the prototype in one or more operational systems.


Development schedule1

Prototype

Development

Field Test

& Evaluation

Deployment

9/00

9/01

7/03

Development Schedule


Decision support needs
Decision Support Needs

  • Covered all surface transportation decision makers

  • Defined 426 needs

    • Across 44 decision maker categories

    • Across 3 scales: planning, operational, and warning


Micro scale warning

Examples of Needs

Micro-Scale Warning

  • 1.1 Control Spreader Application

  • 1.2 Control Plow

  • 1.3 Control Static (Bridge) Deicer

  • 1.4 Observe/Report

  • 1.5 Navigate Spreader/Plow Truck


Meso synoptic operational

Examples of Needs

Meso/Synoptic Operational

  • 2.1 Monitor Conditions

  • 2.2 Prepare

  • 2.3 Select Strategy

  • 2.4 Assign Crews

  • 2.5 Prepare Equipment


Meso synoptic operational1

Examples of Needs

Meso/Synoptic Operational

  • 2.6 Activate Staff

  • 2.7 Initial Dispatching

  • 2.8 Contracting

  • 2.9 Mid-Storm Management

  • 2.10 Cleanup


Synoptic climatic planning

Examples of Needs

Synoptic/Climatic Planning

  • 3.1 Devise Response Plan

  • 3.2 Hire Staff

  • 3.3 Train Staff

  • 3.4 Buy Equipment/Services


Synoptic climatic planning1

Examples of Needs

Synoptic/Climatic Planning

  • 3.5 Stock Stores

  • 3.6 Budget

  • 3.7 Schedule Seasonal Tasks

  • 3.8 Calibrate Treatment Controls


Important environmental factors
Important Environmental Factors

  • Event Definition – start and stop times

  • Precipitation Characteristics - type, amount, and rate

  • Road Condition – temperature, chemical concentration, coverage by liquid phases)

  • Snow Status – depth on road and drift patterns

  • Risk – Confidence and/or probabilities associated with the data elements.


Conceptual system structure
Conceptual System Structure

  • Weather Data

  • Advanced Weather Capabilities

  • Road Condition Module

  • Decision Support Logic

  • Display


Weather data
Weather Data

  • Standard Data Sources – such as National Weather Service data.

  • Nonstandard Data Sources – such as road weather sensor data, video images, and advanced numerical forecast model output.

  • Surface data will be critical for the system.


Advanced weather capabilities
Advanced Weather Capabilities

  • Precipitation-Type Algorithms

  • Weather Condition Diagnosis from Video Cameras

  • Data Fusion Algorithms and Advanced Forecasting Technologies


Road condition module
Road Condition Module

  • Road Temperature Algorithm

  • Road Surface Friction Algorithm

  • Road Chemical Concentration

  • Snow Drift Algorithm


Decision support logic
Decision Support Logic

  • Integrates environmental, road condition and State Department of Transportation operations data.

  • Rules of Practice Algorithms – Will suggest courses of action based on predicated conditions, and the potential consequences of inaction.


Display
Display

  • ArcView will be used for the prototype.

  • ArcView is a commercial desktop GIS system developed by the Environmental Systems Research Institute (ESRI).

  • ArcView can display point or grid data, and numerous map data sets.


References contacts
References & Contacts

  • All documents are posted on the Electronic Document Library

    http://www.its.dot.gov/welcome.htm

  • To participate in the Maintenance Decision Support System contact:


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