A Model to Support Stakeholder Evaluation of Transportation Policy Options in Las Vegas, Nevada

摘要

This paper describes a group model building process conducted to help a stakeholderadvisory committee develop policy recommendations for a regional transportation agency. Overseven months, we worked with committee members and the transportation authority’s technicalstaff to develop a strategic-level model. The model reflects the group’s definition of the problemand collective understanding of the system. The group’s goal was to improve traffic congestion,flow and air quality over a 25-year planning horizon at the lowest system cost. Their finalrecommendation included a mix of policies with an estimated cost of $2.5 billion that achievedthe greatest air quality benefit and significantly reduced congestion and increased flow.Participants were very positive about the model-based process, saying it was faster and “lesspainful” than similar processes they had participated in. This paper discusses several issuesincluding the role group model building played in the stakeholder involvement process,limitations of the model, constraints on the process and factors that were critical to the success ofthe process.