"One-Less-Car" Demonstration Study Replicability Package

Quick link to Executive Summary PDF format | Word format

Quick link to Table of Contents

Welcome to the Replicability Package of the Way to Go, Seattle! One-Less-Car Demonstration Study. In this package are the reports and products that will allow you to understand rationale, methods, and outcomes of this project. Way to Go, Seattle! is part of the City of Seattle's effort to make the most of its transportation system and provide more transportation choices. It was designed to show people that they could save money and make their communities more livable by making more conscious transportation choices. Way to Go, Seattle! strives to find creative and innovative ways to reduce demand on the transportation network, a practice commonly referred to as Transportation Demand Management, or TDM.

The One-Less-Car Study was conducted in three rounds during 2000, 2001, and 2002, and engaged a total of 86 Seattle households in living with 'one-less-car' for either six or nine weeks while keeping detailed trip diaries showing their changing travel choices. During just these few short weeks of having 'one-less-car' to use, participant households made 8,003 fewer car trips which resulted in 41,463 fewer miles of neighborhood traffic and 30,198 pounds less of carbon dioxide emitted in our atmosphere. The families demonstrated that every type of household (such as those with and without children) in a variety of Seattle's neighborhoods can get where they need to go with 'one-less-car' while saving money and reducing stress.

The materials in this package are shared in the interest of supporting and encouraging other municipalities' efforts to reduce drive-alone car trips beyond commute trip reduction programs. They may be used without fee or copyright permissions for educational purposes by governmental agencies, non-profits, community organizations and groups, and anyone wishing to improve their quality-of-life as long as they are not charging a fee for these materials. Labor to implement this project or its elements may of course be compensated. Our study and its materials may also be freely adapted. The only payment we request is that you let us know if you find them useful and that you let us know your results so that we may continue to improve our programs.

PDF files can be viewed using Adobe Acrobat Reader software. Download the free Acrobat Reader from the Adobe website.

Note: During the timeframe of this study, primary project manager's name changed from Jemae Pope to Jemae Hoffman due to marriage, and the project moved from the Transportation Planning unit in the City of Seattle's Strategic Planning Office (SPO) to the Mobility Management unit in the Policy, Planning and Major Projects Division (PPMP) of the City of Seattle's Department of Transportation (SDOT).

Table of Contents

1. Introduction and Directory
2. Final Report (Narrative)
3. Report on Results (Data)
4. Evaluation and Results
5. Media Articles
6. Products and Forms
6a. Application and Recruitment
6b. Orientation Materials
6c. Wrap Up Materials
7. Online Database and Webpages

Replicability Package

1. Introduction and Directory

An introduction to the Replicability Package, a directory of its contents, a Quick Fact Sheet that gives a general overview of the study, and similar documents.

One-Less-Car Introduction & Directory | PDF format | Word format
One-Less-Car Directory.xls (Excel format)
One-Less-Car Fact Sheet | PDF format | Word format
One-Less-Car Value Pricing poster presentation (PDF format)

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2. Final Report (Narrative)

For a quick overview see the Executive Summary | PDF format | Word format

An in-depth Final Report describing the vision, goals, methods, and results of the Way to Go, Seattle One-Less-Car Demonstration Study. This section also contains worksheets and forms, and participant profiles for each round of the study.

One-Less-Car Demonstration Study Executive Summary | PDF format | Word format
One-Less-Car Demonstration Study Report - Final | PDF format | Word format
Appendix A - One-Less-Car Worksheets & Forms | PDF format | Word format
Appendix B - 2000 One-Less-Car Study Profiles | PDF format | Word format
Appendix B - 2001 One-Less-Car Study Profiles | PDF format | Word format
Appendix B - 2002 One-Less-Car Study Profiles | PDF format | Word format

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3. Report on Results (Data)

Data analysis reports for the 2001 and 2002 rounds of the study (second and third rounds), a Comparison Report with the same charts side-by-side from the 2001 and 2002 rounds, and data tables for the 2001 and 2002 rounds of the study.

Appendix C - 2001 One-Less-Car Report on Results | PDF format | Word format
Appendix C - 2002 One-Less-Car Report on Results | PDF format | Word format
Appendix D - 2001 One-Less-Car Diary Tables | PDF format | Word format
Appendix D - 2002 One-Less-Car Diary Tables | PDF format | Word format
2001 & 2002 One-Less-Car Results Comparisons | PDF format | Word format

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4. Evaluation and Results

Quick Results sheets from each round of the study (2000, 2001, and 2002), key participant quotes (2001 and 2002) about their experience, a Summary Sheet for the 2002 Round, a "What Participant Families Say" sheet, and a summary of VMT Reductions in the study. Also has an evaluation (Executive Summary and Final Report) of the effectiveness and cost/benefit of all of the Way to Go, Seattle! programs conducted by Victoria Transport Policy Institute and CH2M HILL, including the One-Less-Car Demonstration Study.

One-Less-Car "What Participant Families Say" (PDF format)
2000 Results (PDF format)
2001 Results (PDF format)
2002 Results (PDF format)
2001 Quotes (PDF format)
2002 Quotes (PDF format)
2002 Summary (PDF format)
VMT Reduced by WTG programs | PDF format | Word format
Way to Go Programs Evaluation - Executive Summary (PDF format)
Way to Go Programs Evaluation - Report (PDF format)

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5. Media Articles

Relevant media articles on the One-Less-Car Demonstration Study including CNN and ABC News.

2000 City of Seattle press release (PDF format)
2000 ABC News One-Less-Car Study (PDF format)
2000 CNN News One-Less-Car Study (PDF format)
2000 Queen Ann-Magnolia News One-Less-Car Study (PDF format)
2000 Seattle Union Record One-Less-Car Study (PDF format)
2001 City of Seattle press release (PDF format)
2002 City of Seattle press release (PDF format)
2002 Seattle Times One-Less-Car Study (PDF format)
2003 Queen Anne-Magnolia News One-Less-Car Study (PDF format)

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6. Products and Forms

Materials created for and used during the study. These are organized sequentially as they are used in conducting one round of the study from start to finish.

6a - Application and Recruitment

Press release, outreach materials, application, car cost worksheet, emissions chart, pre-program questionnaire, and various recruitment letters.

2002 Outreach Press Release | PDF format | Word format
2002 Community Paper Notice | PDF format | Word format
2002 Promotional Article | PDF format | Word format
2002 Display for Outreach Event (PDF format)
2002 Application | PDF format | Word format
2002 Pre-program Questionnaire | PDF format | Word format
2002 Car Cost Worksheet | PDF format | Word format
2002 Emissions Chart | PDF format | Word format
Letter 1 - Application Received | PDF format | Word format
Letter 2 - Pre-program Questionnaire | PDF format | Word format
Letter 3 - You Are a Finalist | PDF format | Word format

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6b - Orientation Materials

Kick-Off meeting agenda, possible questions sheet, participant contract, travel diaries (in several formats), and odometer reading sheet.

2002 Kick-Off Agenda (PDF format)
2002 Participant Contract (PDF format)
2002 Participant Info Sheet (PDF format)
2002 Odometer Reading Sheet (PDF format)
2002 Q & A for Kick-Off (PDF format)
2002 Word Diary Instructions (PDF format)
2002 Baseline Diary (PDF format)
2002 Non-Driving Diary (PDF format)
2002 Spreadsheet Diary Instructions (PDF format)
2002 Baseline0000a.xls (Excel format)
2002 Nondriving0000a.xls (Excel format)

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6c - Wrap Up Materials

Ending survey, incentive letter for selling your car, agenda for Wrap Up meeting, possible media questions sheet, household profile template, and a Follow up survey.

2002 Ending Evaluation | PDF format | Word format
2002 Selling Your Car Incentive | PDF format | Word format
2002 Tips on Selling Your Car | PDF format | Word format
2002 Wrap Up Agenda | PDF format | Word format
2002 Wrap Up Focus Group Questions | PDF format | Word format
2002 Media Q & A and Messages | PDF format | Word format
2002 Vacation Poster | PDF format | Word format
2002 Household Profile template.doc (Word format)
Letter 4 - Wrap Up Meeting | PDF format | Word format
Letter 5 - Non-attending Participants | PDF format | Word format
2002 Follow-up Survey | PDF format | Word format

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7. Online Database and Webpages

A .Zip file that contains a Read Me file and a copy of the ASP and SQL Server applications, with relevant HTML and Excel spreadsheet files, used to allow prospective participants to apply online, and for finalist participants to enter travel diary data online so that the data entered can be stored in a database and downloaded into a spreadsheet.

This software is provided as-is on a no-charge basis, with no warranty or guarantee of support of any kind. The City of Seattle assumes no responsibility for its use or misuse by any parties.

Zip File of all Online Database and Webpage Materials (488 KB) (Right click on link, choose Save Target As and save to your local computer network/folder)

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Send E-mail to: waytogo@seattle.gov