Effectiveness of Different Approaches to Disseminating Traveler Information on Travel Time Reliability (2013) / Chapter Skim
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172 Introductory Questions This appendix includes the slides and script used to conduct each of the focus groups, along with a summary of comments. The session began with the facilitator welcoming the group (Figure C.1)
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173 good understanding that traffic is not the same at every time of day or day of the week, and understood that many variables can affect traffic and the existing systems. One participant spoke about uncertainty in general: "[It's]
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174 open-ended survey that involved an unfamiliar, yet constrained trip. Most participants felt that a travel time reliability system would be most useful before they began their trip.
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175 test, but it may not be feasible to implement with the website system that has already been developed. When the research team asked participants if they wanted the system to tell how sure it is of its estimate, reaction was mixed.
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176 you are a couple of minutes late in this situation, it is not as critical as catching a plane or work or an appointment." One individual mentioned that he might use the system to get a map and check construction status; but overall, this situation did not warrant the use of a pre-planning function. Scenario 4: Unconstrained Unfamiliar The other example of an unconstrained unfamiliar trip is one that requires travel to an area you are not familiar with.
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177 Overall, participants thought that Bob's route was better even though Fred was only late four times compared with Bob's five times. Unprompted, they said Fred had unreliable factors, was more erratic, and had more variance, while Bob's route is more reliable, predictable, and consistent.
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178 phrase was voted on by more than three people. In Seattle, the phrases is most congested, is slow, and gets better/worse were each preferred by two individuals.
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179 example, faster, slower, easier, and quicker were mentioned. After participants viewed the prompts, they still believed those terms to be the best though they liked more consistent after it was shown as well.
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180 Value and Understanding of the System To conclude the session, participants were asked several questions about the overall value of the system and who the users of the system might be. Participants said that primary users of the system would be individuals who drive in new locations on a regular basis.
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181 The final question asked whether the public department of transportation or a private company should provide this travel time reliability information. Initially, participants expressed no strong opinion on this topic, but by the end of the discussion, they were leaning toward private companies.
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