NTAS 2012 - Study Information Sheet

You are being asked to participate in a research study about household travel. The purpose of this study is to examine the effects of local employment, shopping, transportation and neighborhood design on the distance people travel and the types of transportation they use.

The research procedures involve the following three steps:

1. Initial Household Questionnaire – After receiving your initial invitation postcard, you will be asked to complete a brief questionnaire about key household characteristics such as the number of household adults and children, the number of household vehicles, and household transit usage.

2. Travel Diary and Mileage Log – If you are selected to participate in the full study, we will mail you a Travel Diary for each person in your household age 16 or older which will require each person to record the start and end time of all trips on the three days designated on your instruction letter. We will also mail you a Vehicle Mileage Log for each household vehicle. You should record the odometer reading for each vehicle at the start and end of each assigned day.

3. Diary/Log Entry and Final Survey – After your designated survey day, you will use your travel diaries and vehicle mileage log to report travel information online, by phone, or by mail. This step will take about 30 minutes to complete.

There are no direct benefits to you from participation in the study. However, this study may provide insights about the impacts of urban design and planning policies on travel. These insights could help guide policies designed to reduce transportation-related air pollution and energy use in urban areas.

Participation in this study is voluntary and there is no cost to you for participating. You may refuse to participate or discontinue your involvement at any time without penalty. You may choose to skip a question or a study procedure. As an incentive, if your household is selected to participate, after you complete the study we will mail you a local supermarket gift card worth $50.

All research data collected will be stored securely and confidentially. The household identification number (HID) provided on your invitation postcard will be used to track your information in a way that cannot be readily associated with you. The link between your identifying information (name, phone number, and residential address) and your HID will be stored in the UCI research facility in a restricted-access locked cabinet that is separate from the cabinet where the research data are stored. Data with subject identifiers will not be released. All research data will be maintained in a secure location at UCI. Only authorized researchers will have access to the data for research purposes.

The research team and authorized UCI personnel may have access to your study records to protect your safety and welfare. Any information derived from this research project that personally identifies you will not be voluntarily released or disclosed by these entities without your separate consent, except as specifically required by law.

If you have any comments, concerns, or questions regarding the conduct of this research please contact us at 323-364-4824 or email us at ntas@uci.edu. In addition, you may contact Dr. Douglas Houston, Principal Investigator, Department of Planning, Policy and Design, University of California, Irvine. Phone: 949-824-1870. Email: houston@uci.edu