Abstract
This study examines public preferences on the use of visualization techniques to involve the public in transportation planning. Two projects were selected, and prototype two-dimensional, three-dimensional, and four-dimensional visualization models were developed. The models were presented at public meetings where stated preference surveys were conducted. The same models were also presented in a survey conducted via the Internet. A majority of both the 31 questionnaire respondents and the 136 Internet-based survey respondents ranked the two-dimensional, three-dimensional, and four-dimensional visualization techniques in increasing order of their abilities to convey the proposed project concepts. More than 71% of the respondents thought that transportation planning agencies should devote more time and budget to develop advanced visualization models to encourage public participation. In addition, more than 75% of the respondents indicated that they would be more willing to participate and encourage others to participate in the public involvement process if better visualization tools were used.
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