February 2004

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IDAS ITS Deployment Analysis System

• February 2004

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What is IDAS?

• ITS Deployment Analysis System (IDAS)
• FHWA sponsored software program released in May
  2000
• A sketch-planning tool to estimate ITS benefit
  and cost impacts, for over 60 types of ITS
  investments
• Assists public agencies with integrating the
  deployment of ITS into the transportation
  planning process
• Relies on traditional MPO travel demand model
  outputs to construct data inputs
• Runs on Windows 2000, NT, and XP operating systems

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What IDAS is NOT

• Design Tool
• IDAS is designed primarily as a planning tool
• Replacement to the Travel Demand Model
• IDAS is intended to operate as a post-processor
  to the travel demand model
• Black Box
• IDAS was developed in an open format that allows
  users to view and edit most all of the model
  defaults
• IDAS is accompanied by an extensive Users Manual

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IDAS is a Postprocessor and Extender to the
Travel Demand Model (TDM)
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Why was IDAS developed?

• Provide a sketch-planning analysis capability for
  analyzing alternative ITS deployment scenarios
  and for testing tradeoffs of traditional highway
  and transit infrastructure options
• Design a system which is consistent with the
  functional, technical, and resource requirements
  of state, regional, and local agencies
• Develop a tool which assists agencies in
  integrating ITS into the planning process
• Make IDAS compatible with current transportation
  planning models and outputs

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Incorporating ITS in the Planning Process
ITS Strategies
IDAS
Problem Identification
Alternatives Analysis
Recommendations
Transportation Plan and TIP
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IDAS Capabilities

• Comparison and screening of ITS deployment
  alternatives, in isolation or in combination with
  other improvements
• Estimation of impacts and traveler responses to
  ITS
• Estimation of life-cycle costs
• Inventory of ITS equipment, and identification of
  cost-sharing opportunities
• ITS deployment and operations/maintenance
  scheduling
• Documentation for transition into design and
  implementation

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How IDAS Works

• Allows the user to import data from the travel
  demand model to recreate the model network within
  the IDAS software
• Provides the opportunity to build different
  alternatives by choosing from a menu of various
  types of ITS components and deploying them on the
  network
• Maintains a database of system impacts and costs
  related to each type of deployment based on
  national evaluations
• Performs internal network assignment and analysis
  to estimate impacts of ITS
• Reports outputs in terms of the incremental
  change in performance measures and the annual
  benefit/costs

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IDAS Overall Structure
Travel Demand Model
Input/Output Interface
Alternatives Generator
Benefits Module

• Assignment
• Mode choice

Cost Module

• Equipment inventory
• Capital and operations and maintenance (O
  M) costs
• Life-cycle costs

Performance Measures

• Travel time/mobility
• Emissions/fuel
• Accidents
• Travel time reliability

Alternatives Comparison Module

• Benefit/cost analysis
• Incremental performance impacts
• Sensitivity/risk analysis

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Projects, Alternatives, ITS Options
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Types of ITS Components in IDAS
Advanced Public Transportation Systems
Regional Multimodal Traveler Information
Incident Management
Freeway Management
Electronic Toll Collection
Emergency Management
Arterial Management
Electronic Fare Payment
Railroad Grade Crossings
Advanced Vehicle Control and Safety Systems
Supporting and Generic Deployments
Commercial Vehicle Operations
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IDAS Input Data

• Analysis Network Output from travel demand
  model
• Node coordinates
• Link characteristics
• Turn prohibitor (optional)
• Origin-destination (O-D) number of trips
• Zone-to-zone travel times (optional for
  in-vehicle auto trips)
• Default Parameters, Impacts, and Costs User may
  adjust
• Speed-flow curves
• Rates (emissions, fuel, safety)
• Impacts of ITS options
• Dollar value of benefits
• Unit cost of equipment

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Example ITS Deployment Screen
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IDAS Benefits Module Outputs

• Systemwide performance measures including
• Mobility
• Travel time
• Travel time reliability
• Accidents (fatality, injury, property damage)
• Emissions (HC, CO, NOx, PM10)
• Fuel use
• Agency efficiency
• Viewed by
• Market sector (mode)
• Facility type
• District (user defined)

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IDAS Cost Module Outputs

• Inventory of ITS equipment on the transportation
  network
• Opportunities for equipment and cost sharing
• IDAS default cost estimates based upon National
  ITS Architecture
• Costs by year - expenditure stream
• Public and private sector costs
• Capital and operating and maintenance (OM) costs
• Estimate of average annual cost

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Benefit/Cost Summary
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IDAS ITS Library

• IDAS uses look-up tables for the impacts of each
  ITS component
• Data sources
• Literature
• Past deployments
• Simulations

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Where IDAS Has Been Used
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Sample IDAS Applications

• ITS alternatives analysis for Long Range Plans
  Tucson, AZ and Hampton Roads, VA
• ITS Pre-deployment study Detroit, Ann Arbor,
  Flint and Lansing, MI
• Optimal combination of ITS for corridor studies
  Minneapolis/St. Paul, MN
• Evaluation of existing ITS components ARTIMIS
  in Cincinnati, OH region and AZTech in Phoenix,
  AZ
• ITS cost information for statewide ITS strategic
  deployment plans Kansas and Missouri
• Benefits of full operational deployments Tucson,
  AZ Seattle, WA and Cincinnati, OH

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Sample IDAS Applications

• Major Investment Study (MIS) I-70 Corridor in
  Missouri and I-710 in Long Beach, CA
• Freight/Goods Movement Study Seattle, WA
• Evaluation of HOV Operations Minneapolis/St.
  Paul, MN
• Evaluation of Ramp Meters on I-95 Dade County,
  FL
• Analysis tool for a Congestion Management System
  Kansas City, MO
• Evaluation of a Temporary ITS Reconstruction of
  I-496 in Lansing, MI
• Supporting Documentation for AQ Funding
  Application Hampton Roads, VA

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IDAS Case Studies

• Case Study 1 Ohio-Kentucky-Indiana Regional
  Council of Governments (Cincinnati/Northern
  Kentucky region) Evaluation of ARTIMIS and ITS
  Program Plan
• Case Study 2 Michigan Department of
  Transportation Evaluation of the Temporary ITS
  for the Reconstruction of I-496 in Lansing,
  Michigan
• Case Study 3 Evaluation of Emissions Impacts of
  an Incident Management System in Hampton Roads,
  Virginia
• Case Study 4 Mid-America Regional Councils
  (Kansas City) Enhanced Congestion Management
  System

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Information on IDAS

• IDAS web site at http//idas.camsys.com
• About IDAS
• Whats New
• FAQs/User Tips
• Documentation
• Case Studies
• Contacts
• To acquire IDAS contact McTrans at
  http//mctrans.ce.ufl.edu/
• For IDAS training contact NHI at
  http//nhi.fhwa.dot.gov/
• FHWA continues funding maintenance, support and
  training of IDAS