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| * As before, please enter the ID you created in the first survey. Recall that your ID is the last four digits of a phone number that you chose affixed to your zipcode. For example, if the phone number you used was 610-665-2719 and your zip code is 21218. Then your ID is 2719-21218. | | |
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Please be sure to use the same phone number that you used previously for reconstructing this ID. |
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Over the past 3 months, approximately what fuel economy do you think you have gotten in your primary vehicle? |
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How would you characterize the change in your fuel economy over the past 3 months? |
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| Why do you believe that your fuel economy is now worse? | | |
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Over the last 3 months, what percent of the miles driven on your primary vehicle would you say were driven by you? |
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Over the past 3 months, did the vehicle that you were primarily driving change (e.g., did you get a new vehicle or lose the vehicle that you started the study with)? |
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How efficiently, in terms of fuel usage, do you think you drive your vehicle now? |
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The following section includes some general questions about your driving practices. |
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During the past 3 months, when driving your primary vehicle, how often would you adjust your driving behavior in ways to improve your fuel economy? |
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Have you made changes in your driving behavior to improve fuel economy since starting the study? |
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What driving practices did you change during the study? (please check all that apply) |
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For the following questions, we will ask about your driving practices in more detail. |
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During the past 3 months, when driving on the highway in free flow traffic (such as 101, 680 or 880) what cruising speed have you typically tried to maintain? |
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During the past 3 months, what percent (by distance) of all your driving would you say was driven on highways? |
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During the past 3 months, on cold mornings, how long have you typically warmed up the car before starting your trip? |
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For some of the following questions, you will be asked to consider the degree to which you agree or disagree with certain statements. For all questions, please consider your response in the context of the last 3 months of your driving. |
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During the last 3 months, I regularly carried a large number of items in my trunk during daily travel (besides emergency items such as a spare tire or jumper cables). |
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The items that I did carry in my trunk were needed on a daily basis (besides emergency items such as a spare tire or jumper cables). |
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During the last 3 months, how often did you use items that were regularly carried in your trunk or cargo area? |
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Items that I regularly carried in my trunk were heavy. |
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How would you best characterize your acceleration from a stop light or stop sign during the last 3 months? |
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Would you say that your acceleration was… |
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Would you say that your acceleration was… |
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How would you best characterize the way in which you braked before a stop light or stop sign during the last 3 months? |
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Would you say that your deceleration was… |
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Would you say that your deceleration was… |
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Does your current primary vehicle have an in-vehicle dashboard display of your fuel economy and energy use? |
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How regularly did you use the information in this display to adjust your driving during the last 3 months? |
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Do you have a smart phone (e.g., iPhone) with an app for GPS navigation? |
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How regularly did you use the information in the smart phone display to adjust your driving during the last 3 months? |
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Does this smart phone app also give you information on fuel economy? |
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Do you have a dedicated external GPS navigation device (such as a Garmin or Magellan)? |
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How regularly do you use the information in the external GPS display to adjust your driving? |
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The following section includes some general questions about your vehicle maintenance |
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Overall, how well do you think that your car is maintained? |
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Do you think that your vehicle maintenance has improved over the last three months? |
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What maintenance practices did you improve during the study? (please check all that apply) |
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| Why do you believe that your vehicle maintenance has gotten worse? | | |
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The following questions ask additional details about your vehicle maintenance practices. |
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During the last 3 months, I have regularly checked and properly inflated my tires at least once every month. |
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I have regularly used the manufacturer-recommended motor oil during the last 3 months. |
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During the last 3 months, I have had my air filter inspected. |
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After the inspection, was it recommended that you change the filter? |
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Did you have the filter changed? |
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When is the last time that you had the oil changed in your vehicle? |
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From now on, how often will you get your oil changed? |
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How many miles do you expect to travel between oil changes in the future? |
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From now on, how often do you expect to get other maintenance service on your vehicle engine (beyond an oil change)? |
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As of today, what typically triggers you to get an oil change? |
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Has a check engine light come on in your vehicle during the last three months? |
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When is the last time that you had to take your current primary vehicle to address a check engine light? |
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Do you own a tire pressure gauge? |
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Do you carry a tire pressure gauge in your car? |
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During the last 3 months, how often did you check your tire pressure? |
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During the last 3 months, how often was your tire pressure checked by someone besides you? |
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Do you know roughly what the max pounds per square inch (psi) is for the tires on your primary vehicle? |
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To what psi do you generally inflate your tires when you do check the pressure? |
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Do you have a FasTrak toll tag in your current primary vehicle? |
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How often have you crossed a Bay Area bridge in the last three months? |
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Does your vehicle currently have a luggage rack? |
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How often are items attached to your luggage rack? |
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Does your vehicle have a permanent bike, ski, kayak or other rack on it? |
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Do you think that you will continue to practice any changes that you have made to your DRIVING practices after this study is over? |
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Do you think that you will continue to practice any changes that you have made to your MAINTENANCE practices after this study is over? |
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Thank you very much for completing the survey. Please press the submit button below! |
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