Paul Waddell

Learn More
Metropolitan areas have come under intense pressure to respond to federal mandates to link planning of land use, transportation, and environmental quality; and from citizen concerns about managing the side effects of growth such as sprawl, congestion, housing affordability, and loss of open space. The planning models used by Metropolitan Planning(More)
UrbanSim is a new urban simulation model, developed over the past several years, which is now operational in three urban areas in the United States. The model system is designed to address emerging needs to better coordinate transportation and land use planning as a result of recognition of the strong interactions between land use and transportation,(More)
We develop a method for assessing uncertainty about quantities of interest using urban simulation models. The method is called Bayesian melding, and extends a previous method developed for macrolevel deterministic simulation models to agent-based stochastic models. It encodes all the available information about model inputs and outputs in terms of prior(More)
The growing demand for better coordination of metropolitan land use and transportation planning has led to the need for new analytical tools to examine the potential impacts of land-use and transportation policies and investments. In this paper I report on the residential and market-clearing components of the recently developed UrbanSim land-use model,(More)
Sophisticated simulation systems such as UrbanSim model the long-term impacts of transportation and land-use alternatives. Accounting for human values throughout the design process helps in designing interactions that engage both planners and citizens in the decision-making process. Our future work includes further research on applying UrbanSim in real(More)
This chapter provides an introduction to urban simulation, which we interpret broadly to mean operational models that attempt to represent dynamic processes and interactions of urban development and transportation. Its intent is to provide the reader with a reasonable understanding of the context and objectives for urban simulation modelling within(More)
Urban simulation models and their visualization are used to help regional planning agencies evaluate alternative transportation investments, land use regulations, and environmental protection policies. Typical urban simulations provide spatially distributed data about number of inhabitants, land prices, traffic, and other variables. In this article, we(More)