All working papers are available online as PDF files. To obtain a free printed copy of any working paper, please send us a request via fax 312-258-0012 or e-mail John Allen at: information@catsmpo.com.

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06-05 Rail Transit Coding Procedures for Arc/INFO
06-04 Master Highway Network Coding and Processing Procedures for the 2006 Conformity Analysis
06-03 Archive of Survey Questionnaires
06-02 Survey and Questionnaire Design
06-01 Intermodal Volumes III: Serial Measuring, Tracking & Anticipating Levels of Activity for Northeast Illinois
05-06 Updating and Modifying CATS Modeling Zone Systems
05-05 The 2001 Interactive Regional Highway Atlas – Processing Excel and Access Files
05-04 The 2001 Interactive Regional Highway Atlas – Updating the Map Book
05-03 An Evaluation of the CATS CMAQ Division’s Method for Analyzing Bicycle, Pedestrian and HOV Project Proposals
05-02 FREQ Simulation and Ramp Meter/HOV Bypass Optimization for the Northwest Study Area: A Methodology for Determining Reasonable FREQ Volume Inputs
05-01 Analysis of Absolute Change In Carpool and Vanpool Numbers in Northeastern Illinois From 1990 to 2000
04-07 Public Reception of Ridematch 21
04-06 Variations in Traffic Accident Rates for Northeastern Illinois by Vehicle Miles of Travel and Facility Type for Each Hour of the Week
04-05 Expressway Travel Patterns in the City of Chicago
04-04 Dealing with AADT and VMT Data in the 2001 Interactive Regional Highway Atlas
04-03 Moving the Regional Highway Atlas to the Internet: A Technical Overview
04-02 Ridematch Systems 21: The Role of User Feedback in the Design and Implementation of Registration, Matching and Administrative Subsystems
04-01 Non-Central City Expressway Park-n-Ride Lot Preliminary Site Location Analysis for Northeastern Illinois
03-08 Master Highway Network Processing Procedures for the 2003 Conformity Analysis
03-07  Ridematch System 21 Using Vector-Based Matching To Direct Ridematching Activities
03-06  Testing of IDAS Capabilities Using Northeastern Illinois ITS Deployments
03-05  Preparing Rail Project Coding for Shared Path 2030
03-04  Methodology Used for Determining Transit Revenue Hours & Energy Consumption for all Modes of Travel for the 2030 RTP
03-03  CVHAS Project: Preliminary Market Assessment
03-02  SOV Survey Phase II Report
03-01  An Analysis of Intermodal Improvement Needs in the Northeastern Illinois Region: Close-Out Report
02-02  Non Central City Expressway Park-n-Ride Lot Demand Estimation for Northeastern Illinois
02-01  Small Area Traffic Forecasting for December 1998 Through 2000 By County and Year
01-22  CATS Signal Interconnect Inventory Baseline and Update Process
01-21 FREQ Simulation and Ramp Meter/HOV Bypass Optimization for the South Study Area--Milestone Report #2 Series
01-20  Milestone Report #3 series: A Planning Evaluation of Priority HOV Queue By-pass Lanes on Metered Expressway Entrance Ramps--Field Work Determination of Entry Ramp Average Vehicle Occupancy and Peak Hour Traffic for the North Study Area
01-19  Bus Transit Network Database Design and Coding Procedures
01-17  Public Education and Ramp Meter/ HOV Lane Enforcement for the HOV Ramp South Study Area--Milestone Report #2 Series
01-16  Wendella River Bus Service Analysis
01-15  Chicago Transportation Study GIS and An Intranet
01-14  Park & Ride Lot Demand and Location Survey for the HOV Ramp South Study Area--Milestone #2 Series
01-13  Northeastern Illinois Expressway System Atlas Annual Average Daily Traffic Volume Balancing Technical Process Methodology
01-12  CATS WPV Variable for Modeling
01-11  Development of the CATS Heavy Truck Model
01-10  A Synopsis of CMAQ Demonstration Projects
01-08  2001 Highway Performance Monitoring System: CATS  Year 2020 Traffic Forecast for the Northeastern Illinois Six-County Areas, Process and  Methodology
01-07  Project Level Traffic Forecasting: Process and Methodology
01-05  Investigation of an Origin-Based Traffic Assignment Algorithm
01-04  Intermodal Volumes: Tracking Trends & Anticipating Impacts in Northeast Illinois (Continued)
01-03  Light-Duty Fuel Costs and Transportation Demand 1998-2000
01-02  Milestone Report #2 Series: A Planning Evaluation of Priority HOV Queue Bypass Lanes on Metered Expressway Entrance Ramps, Field Work Determination of Entry Ramp Average Vehicle Occupancy and Peak Traffic for the Northwest Study Area
01-01  CATS Travel Demand Models: Data Processing for the 2020 RTP Update and 2000 RTP/TIP Conformity Analysis
00-05  VMT Database Update to 1999 Northeastern Illinois Expressway and Tollway Systems
00-04 Highway Assignment Validation Activities
00-03  Status Report on the 11 Transportation Management Strategies of the 2020 Regional Plan
00-02  National Survey of Transportation Management Strategies and  New Initiatives for Consideration
00-01  A Review of FRA's Proposed Rule Requiring Locomotive horn Sounding at all Public At-Grade Highway-Rail Crossings
99-12  An Investigation of Future Land and Equipment Requirements for the Intermodal Freight Industry in Northeastern Illinois
99-11  Assigning Auto Access to Transit Stations
99-10  1997-1998 Multi-Modal External Travel Survey Part 3: Inter-City Air, Bus and Rail Carrier Inventory
99-09  Vehicle Registration Database
99-08  Lake County Transportation Improvement Projects Phase 1: Project No-Build Trip Table Development
99-07  A Description of CATS Technical Work in Support of Three Major Investment Studies
99-06  Report on Carpool and Non Carpool Focus Groups
99-05  Consistency With the Intelligent Transportation System National Architecture Through the Metropolitan Planning Process
99-04  Grade Crossings of Northeastern Illinois: An Analysis of the FRA Grade Crossing and Grade Crossing Accident Inventories, and An Analysis of the  Potential Impacts of the Horn-Sounding Requirement of the Swift Rail Development Act
[Note: This is a very large file (10.5 MB). You will have an easier time if you save it to your computer before opening it.
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99-03  South Suburban Transportation Corridor Study
99-02  Investment of Highway Funds in Northeastern Illinois
99-01  1997-1998 External Travel Survey Part 2: Illinois and Indiana Screen Line Traffic Counts
98-08  Three Approaches to Defining Transportation Corridors
98-07  Mainstreaming Intermodal Freight into the Metropolitan Planning Process
98-06  Municipal Transportation Study: Survey of Resources and Expenditures
98-05  Employer Access Shuttle Location Screening Process: Creating the Foundation
98-04  An Analysis of Intermodal Improvement Needs in the Northeastern Illinois Region
98-03  Application of FHWA Travel Demand Management Evaluation Model for Transportation Management Strategy Analysis
98-02  Guidelines for a Proposed Regional Guaranteed Ride Home Program
98-01  A Statistical Analysis of Mean Route Travel Times on Seven Primary Arterials in the Chicago Metropolitan Region
97-21  Transportation Management Research Compendium
97-20  Light-Duty Vehicle Fuel Costs and Transportation Demand
97-19  VMT Data Base Northeastern Illinois Expressway and Tollway Systems
[Note: This is a very large file (6.63 MB). You will have an easier time if you save it to your computer before opening it.
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97-18  CATS Daily Travel Demand Models: Ancillary Data Processing Steps
97-17  Two Presentation/Discussion Papers on the Activities of the CATS Intermodal Advisory Task Force
97-16  A Preliminary Examination of Future Intermodal Volumes in Northeastern Illinois & Implications for Land Use
97-15  CATS Daily Travel Demand Models: Principal Data Processing Steps
97-14  1997 Conformity Highway Network Processing Procedures
97-13  A License Plate Matching Scheme for 1997 CATS I-55 O-D Travel Survey
97-12  Method for Adjusting Modeled Speeds Based on Empirical Speed Data
97-11  Commercial Vehicle Volumes on Major Highway Facilities in Northeastern Illinois
97-10  An Evaluation of Prior Carpool Promotion Effects on Carpool and Garage Utilization at the CTA Blue Line Cumberland Road Park 'n Ride Garage
97-09  1994, 1995 & 1996 Combined Travel Time Data Base Documentation: Arterial Highway System
97-08  Methods of Processing and Analyzing Arterial Travel Time Data for the CATS Travel Time and Speed Study
97-07  Study of Truck Volumes & Percentages on Marked Routes in Northeast Illinois
97-06  Comparative Analysis of Travel Times on I-355, North-South Tollway
97-05  A Statistical Method for Testing Year-to-Year Difference in Arterial Travel Data: The Chicago Case
97-04  A History of the Northeastern Illinois Expressway System
97-03  Statistical Summary and Value of the Intermodal Freight Industry to Northeast Illinois
97-02  An Analysis of Inter-modal Improvement Needs in the Northeast Illinois Region
97-01  Evaluation of the Canadian Pacific Rail System's CMAQ Project
96-20  Preliminary Technical Report: Travel Demand Reduction
96-19  Developing Day of the Week Traffic Variation Using Loop Detection Data
96-18  Developing Monthly Seasonal Factors Using Loop Detection Data
96-17  A Travel Time Delay Approach to Qualifying Congestion in the Chicago Area
96-16  EMME/2 Transit Assignment
96-15  EMME/2 Transit Assignment Auxiliary Link Construction
96-14  EMME/2 Transit Skims Construction
96-13  CMAQ Project Evaluation Methodologies
96-12  Traffic System Center Data Coding Guide
96-11  Building Sketch Networks: The Development of Sketch Zones, Boundaries and Aggregation Process of Detailed Highway Networks
96-10  Use of Census Data in Illinois: Small MPO Application
96-09  Use of Census Data in Illinois: A Large MPO Application
96-08  Analysis of the 1995 Bicycle Survey of Suburban Bike Trails
96-07  Processing Procedures Used to Build the 1995 Conformity Highway Networks
96-06  Traffic Monitoring for Air Quality a.k.a. VMT Estimating, Tracking and Forecasting
96-05  Using Geographic Information Systems for Intermodal Planning: NHS Connectors and Intermodal Inventory Development with Intermodal Facilities Inventory (Version 2.0)
96-04  Transportation Management Research Compendium
96-01  Railroad Crossings of Northeastern Illinois
95-20  Employer Rideshare Coordinator Training Program
95-19  A Rideshare Mass Marketing Strategy Plan to Increase the Regional Rideshare Database
95-18  Employer Based Tax Incentives to Encourage Ridesharing
95-17  1995-2000 Rideshare Development Strategy
95-16  Travel Demand Management Evaluation Model: A User's Guide
95-15  Preliminary Technical Report Intermediate Congestion Management System/Travel Demand Reduction for IL Route 64 (North Avenue) IL Route 53 to Villa Avenue in DuPage County
95-14  Rideshare Promotional Documents
95-10  Master Highway Network Database Design and TIP Change Card Processing
95-09  Travel Time Database and Structure, Chicago Area Expressway System, Volume 3 0f 3
95-08  Travel Time Database and Structure, Arterial Highway System, Volume 2 of 3
95-06  Designated State Truck Route System Map Distribution Survey
95-05  An analysis of Selected Park and Pool Programs
95-04  A Clean Air Primer for Northeastern Illinois
95-03  Using Geographic Information Systems for Intermodal Planning: NHS Connectors and Intermodal Inventory Development
95-02  Transit Coding Procedures and Conventions
95-01  MO1/MO23 Data File Update Description of Variables
94-08  Preliminary Evaluation of TCM Proposals
94-07B Monthly Adjustment Factors, (Appendices)
94-07A  Monthly Adjustment Factors
94-06  Aircraft Operational Counts
94-05  CATS 1990 Household Travel Survey, A Methodological Overview
94-04  1990 CATS Household Travel Survey Technical Documentation for the Household, Person and Trip Files
94-03 CATS Communications Manual
94-02  Acquiring Secretary of State Vehicle Registration Files 1994 Update
94-01  CATS Traffic Analysis Zone Structure for the 1990 Census Transportation Planning Package
93-05  1990 Work Trip Flow Between Illinois Counties
93-02  Updating the CATS Highway Network Database
93-01  The Effect of Reconstruction Work on the  Travel Characteristics of Kennedy Expressway Drivers
92-04  Kennedy Expressway Reconstruction Survey Comments Received from Motorists
92-02  Acquiring Secretary of State Vehicle Registration Files
92-01  Results of Interstate O/D Survey I-294 at Cermak
91-03  1991 Chicago Auto Show Survey – Awareness and Usage of CATS Carpool Hotline
91-01  A Computerized Travel Time Study for Northeastern Illinois: Methodology and Commentary
90-04  Out of State Traveler Survey of the Dan Ryan Reconstruction Project
90-03  Radio Traffic Information Survey: 81st Annual Chicago Auto Show
90-02  Illinois Route 59 Commuter Rail Station Survey
90-01 Comments Received from the Illinois Route 59 Commuter Rail Station Study
89-07 Analysis of Traffic Impacts Due to Summer 1989 Construction
89-06  Requesting Travel Time Contour Maps
89-05  Linking Input-Output and Transportation Planning Methods to Evaluate the Economic Impacts of Transpiration Investments
89-04  Trip Generation at Neighborhood Shopping Centers with Frequent Bus Service
89-03  Comments Received from the Dan Ryan Panel Study
89-02  Dan Ryan Reconstruction Public Information and Awareness Survey Results
89-01  Addendum to Auto Occupancy for Areas Outside Chicago Central Business District
88-12  Comparison of Metra Ridership Before and During Dan Ryan Reconstruction
88-11  A Comparison of Tri-State Tollway Travel Times Before and During Dan Ryan Reconstruction
88-10  Dan Ryan Reconstruction Travel Time Study
88-09  1988 O'Hare International Airport Limousine Dwell Time Study
88-08  Study of Plainfield Central Business District Parking
88-07  Auto Occupancy for Areas Outside the Chicago Central Business District
88-06  The Effect of the Two-Way Left-Turn Lane on Accidents in the Six County Area
88-05  Existing Traffic Conditions in St. Charles
88-04  1987 Western Open: Summary of Data Collection Efforts
88-03  Local Government Participation in Federal Aid Highway Programs: Faus Experience and Future Prospects
88-02  Three Case Studies of Planning for Suburban Arterial Sheet Corridors in Northeastern Illinois
87-33  Instructions for Affixing Labels on Newsletters, Bulletins and Operations Review
87-13  Programming Stability of the Annual Element
87-12  A Review of the 1986 Schaumburg Area Rideshare Promotion
87-11  North Shore Rideshare II Promotion-1986
87-10  Seat Belt Opinion Survey: 79th Annual Chicago Auto Show
87-09  Commercial Vehicle Survey: A Presentation to the Regional and Distribution Carriers Conference
87-08  Commercial Vehicle Survey: A Presentation to the Piggyback Association of Chicago
87-07  Rich Township Mobility Limited Survey
87-06  A Choice of Mode Model for a  Commuter Rail Corridor
87-05  Management of a Small Home Interview Travel Survey Using a Microcomputer
87-04 Commuter Rail Station Market Analysis: Survey Design
87-03  Commuter Rail Station Market Analysis: Planning Issues and Study Approach
87-02  Identification of Work Trips to the Greater Oak Brook Area
87-01  Review of Trip Patterns Relevant to the Dan Ryan Reconstruction
86-14  Evaluation of Traffic Problem Route 120: The City of McHenry
86-13  Mid-Day Pedestrian Demand Estimate for the West Loop Pedway Study
86-12  Chicago Taxicab Short Trip Study
86-11  Limousine Vehicular Delay Study: O'Hare International  Airport
86-10  West Loop Pedway Peak Demand Analysis
86-09  1984 Cordon Line Survey
86-08  Highway Advisory Radio Opinion Survey: 78th Annual Chicago Auto Survey
86-07  Metropolitan Planning Organization Survey: Preliminary Report
86-05  Description of the Chicago Transit Authority's Special Service Contract Operation
86-04  Weekend Expressway Travel
86-03  Transportation Operations Committee Review of the Transit Service Corporation Cost
86-02  Central Area Building Survey Methodology
86-01  An Alternative Approach to Performing Selected Link Analysis
85-15  The Vanpool Transportation Subsidy Project for the Chicago Region
85-14  A Review of the Transportation Systems Planning for the Chicago Region
85-13  Involving Private Transportation Operators in the Transportation Planning Process: The Case of the Chicago Region
85-12  An Inventory of Vehicles Traversing the Lower Roadway at O'Hare International Airport
85-11  The Hillside Mall Park and Ride Promotion
85-10  Paratransit Opportunities in the Chicago Region
85-09  Inventory of Liveries, Taxi Cabs, School Buses and Commuter Vans Operating in Northeastern Illinois
85-08  A Traffic Impact Analysis for Proposed Alternative Milwaukee Road Railroad Station Sites at Lake-Cook Road
85-07  Seat Belt Opinion Survey: 77th Annual Chicago Auto Show
85-06  Summary of the Illinois Revised Statutes as They Relate to Taxicabs
85-05  Allocation of 1980 Census Work Trips to CATS Zones
85-04  Household Structure and Trip Generation
85-03  Transit Network Review
85-02  A Guide to Answering the CATS Carpool Hotline
85-01  Maintaining the CATS Carpool Program Database
84-15  Funding Sources for Transit Systems' Operations
84-14  A Survey of Commercial Vehicle Access Controls at Major U.S. Airports
84-13  Pedestrian Signal Evaluation 76th Annual Chicago Auto Show
84-12  Capital Rehabilitation and Replacement Needs of the Northeastern Illinois Region's Public Transportation System to 1992
84-11  Repair Needs of the Northeastern Illinois Region's Federal-Aid Highway System to 1992
84-10  Analysis of Taxis and Limousines Departing from O'Hare International Airport
84-09  Home Based Trip Generation: Preliminary Calibration Results
84-08  Will County Transportation Study Evaluation of Alternatives
84-07  Development of a Doubly Constrained Intervening Opportunities Model for Trip Distribution
84-06  CATS Data Requirements Phase I Report: A Critique of Present Practices
84-05  A Simple Regression System Using a Personal Computer Spreadsheet Program
84-04  An Experimental Design to Determine the Effectiveness of a Company Ridesharing Program
84-03  Mobility Limited Transportation Demand Analysis
84-02  Calibration of Home to Work Production and Work to Home Attraction Trip Generation Models Using Multiple Regression Methods
84-01  Calculation of Federal Aid Urban Highway Program Marks: An Application for a Personal Computer Spreadsheet Program
83-16  Statistical Analysis of the Travel Time Data
83-14  Fiscal Year 1983 Rideshare Project: A Review
83-13  Traffic Engineering FY 83 Report: Studies on Traffic Flow and Travel Time in Various Communities
83-12  An Analysis of Passenger Loads on Chicago Transit Authority Rapid Transit Cars and Buses
83-11  Evaluation of Travel Time Data
83-10  Equilibrium Traffic Assignment on an Aggregated Highway Network for Sketch Planning
83-09  Programming Trends in the FY 82-86 Transportation Improvement Program
83-08  Validation of Highway Link Congestion Functions
83-07 An Analysis of Ground Transportation to Chicago-O'Hare International Airport
83-06  Chicago Central Area Travel Generation: 1970-1992
83-05  Several More Improvements in Understanding, Calibrating, and Applying the Opportunity Model
83-04  Transportation Planning for the 1992 Chicago World's Fair Lake Shore Drive Relocation: I-55 to Balbo Drive
83-03  A Motor Freight Planning Model for Chicago
83-02  A Sketch Analysis of Transportation Service for the 1992 Chicago World's Fair
83-01  Planning Issues for the Truck, Rail, Air Cargo, and Waterbone Freight Modes in the Chicago Region