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									                           Survey Design with a
Conducted on behalf of:   Focus on Model Validity
                           11th National Transportation Planning Applications Conference
   Conducted by:                      May 6-10, 2007, Daytona Beach, Florida



In Association With:
  PTV DataSource            Stacey Bricka | NuStats | 512-306-9065 | sbricka@nustats.com
      GeoStats
        PB
                           Kermit Wies | CMAP | 312-386-8820 | kwies@cmap.illinois.gov
   Chandra Bhat
   Mark Bradley
Mary Kay Christopher
   Keith Lawton
                              Overview of Presentation


                             Study Environment
Conducted on behalf of:
                             Design Approach
                             Findings

  Conducted by:




In Association With:
  PTV DataSource
      GeoStats
        PB
   Chandra Bhat
   Mark Bradley
Mary Kay Christopher
   Keith Lawton
                          Study Environment
                             Geography
                                  8 Counties               McHenry     Lake
                                  4,000 square miles
Conducted on behalf of:
                             Population
                                  2,940,007 households       Kane

                             Diversity                                DuPage
                                                                                Cook
                                  Residents
                                  Languages
  Conducted by:                                              Kendall
                                  Travel Modes
                                                                         Will
                                  Political Environment
                             Changing Technology            Grundy

In Association With:              Telephone Service
  PTV DataSource
      GeoStats                    Travel Demand Modeling
        PB
   Chandra Bhat
   Mark Bradley
Mary Kay Christopher
   Keith Lawton
                              Inventory Objectives

                              Document demographic and travel
                               behavior characteristics of the region
Conducted on behalf of:
                              Support update of the regional travel
                               demand model
                              Serve as inputs for the development of
  Conducted by:                a new regional travel demand model


In Association With:
  PTV DataSource
                           Model Validity
      GeoStats
        PB
   Chandra Bhat
   Mark Bradley
Mary Kay Christopher
   Keith Lawton
                          Design Phase Objectives

                          1. Confirm inventory contents
Conducted on behalf of:   2. Validate budget assumptions
                               Establish “typical” conditions
                               Identify unique conditions, remedies, and
                                associated costs
  Conducted by:
                               Evaluate most effective survey
                                administration options

In Association With:      3. Vet recommendations
  PTV DataSource
      GeoStats
        PB
   Chandra Bhat
   Mark Bradley
Mary Kay Christopher
   Keith Lawton
                            Design Approach

                                           Community
                            Passive         Outreach         Traditional
Conducted on behalf of:   Recruitment                           Pilot

                                             White
                                             Papers
  Conducted by:




In Association With:                       Peer Review
  PTV DataSource
      GeoStats
        PB
   Chandra Bhat

                                        Final Study Design
   Mark Bradley
Mary Kay Christopher
   Keith Lawton
                              Passive Recruitment

                             Objectives
Conducted on behalf of:
                                 Low-Cost Recruitment Mode
                                 Contact Non-Telephone HH
                             Action
                                 Address-based Sample
  Conducted by:

                                 Mailed 1000 Letters with Brochure and
                                  Mail/Web Recruitment Survey
In Association With:             50% received $2 incentive
  PTV DataSource
      GeoStats
        PB
   Chandra Bhat
   Mark Bradley
Mary Kay Christopher
   Keith Lawton
                              Passive Recruitment

                             Results
Conducted on behalf of:
                                 53 HH returned surveys (6%)
                                  •   37% were non-telephone households
                                  •   83% received an incentive
                                  •   No statistical differences from phone recruits
  Conducted by:                  38 non-participating HH debriefed
                                  •   Only 28% recalled packet
                                  •   39% said would have participated if we called them
In Association With:
  PTV DataSource
      GeoStats
        PB
   Chandra Bhat
   Mark Bradley
Mary Kay Christopher
   Keith Lawton
                              Passive Recruitment

                             Full Study
Conducted on behalf of:
                                 Advance Mailings Included in Full Study
                                  •   Mail to Active and Passive Sample
                                  •   Capture of Cell-Only HH
                                  •   Lower-cost Recruitment
  Conducted by:                  Mailed 10,000 letters to Date
                                  •   225 passive recruits (~10% of all recruits)
                                        4% non-landline HH
In Association With:                    1-person/1-worker HH
  PTV DataSource
      GeoStats                          Higher reported use of Auto
        PB
   Chandra Bhat
   Mark Bradley
Mary Kay Christopher
   Keith Lawton
                              Community Outreach

                             Objective
Conducted on behalf of:
                                 Identify and ameliorate participation issues
                             Action
                                 Held 4 community group meetings

  Conducted by:




In Association With:
  PTV DataSource
      GeoStats
        PB
   Chandra Bhat
   Mark Bradley
Mary Kay Christopher
   Keith Lawton
                              Community Outreach

                             Results
                                 Identified Design Improvements
Conducted on behalf of:
                                 Identified Activities to Increase Participation
                             Full Study
                                 Design – Reflected Community Group Input
                                 Lower Participation among Target Groups
  Conducted by:
                                 Phase 1: Advance Mailings, Incentives, Tailored
                                  Interviewing, Multiplicity Sampling
                                 Phase 2: Community Groups
In Association With:
  PTV DataSource
                                 Phase 3: In-Person Interviewing
      GeoStats
        PB
   Chandra Bhat
   Mark Bradley
Mary Kay Christopher
   Keith Lawton
                              Traditional Pilot

                             Objectives
                                 Establish “typical”
Conducted on behalf of:           conditions
                                 Evaluate respondent
                                  reaction
                             Action
  Conducted by:
                                 Three Pilot Test Areas
                                 Three Diary Types
                                 Two Survey Lengths
In Association With:             Incentives Test
  PTV DataSource
      GeoStats
        PB
   Chandra Bhat
   Mark Bradley
Mary Kay Christopher
   Keith Lawton
                          Traditional Pilot

                                       1-day Place   2-day Place   1-day Activity
Conducted on behalf of:



                          Respondent     64%           48%             49%
                           Reaction

  Conducted by:           Incentives       --          0.5%            43%
                           Impact


In Association With:
                            Trip          4.58          3.97           4.10
  PTV DataSource
      GeoStats
                           Capture
        PB
   Chandra Bhat
   Mark Bradley
Mary Kay Christopher      Interview    30.6 min      37.0 min       33.7 min
   Keith Lawton
                           Lengths
                              White Papers

                             Objectives
Conducted on behalf of:
                                 Recommend Final Study Design
                                 Recommend Inventory Elements
                             Action
                                 Identified Primary Data Elements for Pilot
  Conducted by:

                                 Analyzed Pilot Data and Secondary Data
                                 Presented & Discussed Recommendations
In Association With:
  PTV DataSource
      GeoStats
        PB
   Chandra Bhat
   Mark Bradley
Mary Kay Christopher
   Keith Lawton
                              White Papers

                             Results
                                 Inventory Contents
Conducted on behalf of:
                                 Sampling
                                 Efficient Data Collection
                                 Maximizing Participation

  Conducted by:




In Association With:          www.nustats.com/chicago
  PTV DataSource
      GeoStats
        PB
   Chandra Bhat
   Mark Bradley
Mary Kay Christopher
   Keith Lawton
                              White Papers

                             Full Study
                                 Identified data elements
Conducted on behalf of:
                                   •   Support Model Update
                                   •   Develop New Model
                                 Sampling based on density and transit access
                                 Phone/Mail/Web Options
  Conducted by:




In Association With:
  PTV DataSource
      GeoStats
        PB
   Chandra Bhat
   Mark Bradley
Mary Kay Christopher
   Keith Lawton
                              Peer Review Panel

                             Objectives
Conducted on behalf of:
                                 Vet Design Recommendations
                                 National and Local “Experts”
                             Action
                                 Presented Pilot Results and White Papers
  Conducted by:

                                 Obtained Local Stakeholder Input
                                 Full Day Discussion of Each Design Element
In Association With:
  PTV DataSource
      GeoStats
        PB
   Chandra Bhat
   Mark Bradley
Mary Kay Christopher
   Keith Lawton
                              Final Project Design

                              11,600 HH
Conducted on behalf of:       Mix of 1-day and 2-day HH
                              Year-long Data Collection Effort
                              300 HH 7-day GPS Component
  Conducted by:
                              1,000 SP Follow-up Surveys

In Association With:
  PTV DataSource
      GeoStats
        PB
   Chandra Bhat
   Mark Bradley
Mary Kay Christopher
   Keith Lawton
                              Findings

                              In-depth Design Phase Was Worth It
Conducted on behalf of:           If Budget Constrained, Secondary Data
                                   Helpful
                              Peer Review Panel Input Was Invaluable
                                  Mix of Local and National
  Conducted by:
                              Focus on Model Validity
                                  Driving Question for Evaluation
In Association With:              Identify Data Elements for Current and Future
  PTV DataSource
      GeoStats                     Model Updates
        PB
   Chandra Bhat
   Mark Bradley
Mary Kay Christopher
   Keith Lawton
Conducted on behalf of:      THANK YOU!

   Conducted by:          Questions or Comments?

In Association With:
  PTV DataSource
      GeoStats
        PB
   Chandra Bhat
   Mark Bradley
Mary Kay Christopher
   Keith Lawton

								
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