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Abstract: This presentation considers co-evolutionary process between the development of land and transport networks. Using data from the rail and Underground in London and the streetcar system in the Twin Cities, the empirical relationship is established statistically under several different contexts, and hypotheses about the positive feedback nature of the interaction are tested. Using insights from empirical observation, a numerical simulation is constructed to more formally test the relationship, and to understand the extent to which allowing networks to vary in response to land use (and land use to vary in response to network) affects the spatial organization of each. Models of network growth which fix land use, and models of land use which fix network growth, underestimate the degree of hierarchy that emerges in the system. Given transportation creates land value, and recognizing the problem of underfunding transport infrastructure, new funding sources can be used to increase transport investment, create additional land value, and improve social welfare.

Prof. David Levinson serves on the faculty of the Department of Civil, Environmental, and Geo- Engineering at the University of Minnesota and directs the Networks, Economics, and Urban Systems (NEXUS) research group. He holds the Richard P. Braun/CTS Chair in Transportation. He also serves on the graduate faculty of the...

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There is growing support for improvements to the quality of the walking environment, including more investments to promote pedestrian travel. Planners, engineers, and others seek improved tools to estimate pedestrian demand that are sensitive to environmental and demographic factors at the appropriate scale in order to aid policy-relevant issues like air quality, public health, and smart allocation of infrastructure and other resources. Further, in the travel demand forecasting realm, tools of this kind are difficult to implement due to the use of spatial scales of analysis that are oriented towards motorized modes, vast data requirements, and computer processing limitations.

To address these issues, a two-phase project between Portland State University and Oregon Metro is underway to develop a robust pedestrian planning method for use in regional travel demand models. The first phase, completed in 2013, utilizes a tool that predicts the number of walking trips generated with spatial acuity, based on a new measure of the pedestrian environment and a micro-level unit of analysis. Currently, phase two is building upon this tool to predict the distribution of walking trips, connecting the origins predicted in phase one to...

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Summary: Linking planning and operations is vital to improving transportation decision making and the overall effectiveness of transportation systems. In this seminar Steve will discuss data and modeling methods supported by the PTV Vision software suite to facilitate integrated planning for operations.

Bio: PSU Alum Steve Perone is the President of PTV America, Inc. the North American subsidiary of German software provider PTV Group. Headquartered in Portland, Oregon he is responsible for supporting a diverse customer base of traffic engineers and transportation planners from over 1,000 public agencies, universities and consulting firms combined. His experience draws on time spent in roles as both a public sector employee and as a private consultant supporting public agencies. In his role he actively supports many ITE and TRB events and programs.

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Abstract: This seminar will introduce land use models to non-modelers. It will cover the basic concepts of land use models and evolving approaches of land use modeling. It will examine how these models and the questions their users are being asked to respond to have evolved over the past two decades. In particular, it will discuss an integrated approach with transportation models that are increasingly used to inform land use and transportation planning. The seminar concludes with a discussion of the limitations and new directions of land use modeling research and practice.

Speaker Bio: Liming Wang, a post doctoral researcher at University of California- Berkeley, has a PhD from the University of Washington Interdisciplinary PhD program in Urban Design and Planning. He has developed key features of the UrbanSim model system, and participated actively in its application in numerous metropolitan areas. His expertise includes advanced econometrics of discrete choice modeling, model development, and software development in R and Python.

Modeling transportation basically involves development of relationship between the demand for transportation and the land-use, socio-economic and transportation system characteristics. The Indian socio-economic and transportation system characteristics are highly complex and wide ranging and hence, formulation and quantification of appropriate causal variables for modeling is a challenging task. The first part of the talk will focus on this aspect. The traffic on Indian roads is highly heterogeneous and the vehicles move on the roads without any lane or queue discipline. Hence, the commonly adopted procedure to model lane based traffic flow is not applicable for modeling this type of traffic comprising vehicles of wide ranging static and dynamic characteristics. The approach to modeling of this type of traffic flow is distinctly different. An appropriate methodology for modeling heterogeneous traffic flow has recently been developed at Indian Institute of Technology Madras and the same be will discussed in the second part of the presentation.

Dr. V. Thamizh Arasan, Professor and Head, Transportation Engineering Division, Department of Civil Engineering, Indian Institute of Technology Madras, Chennai, India, has been involved in teaching, research and consultancy, in the area of Transportation Engineering for the past two and a half decades. Traffic Simulation and Travel Demand Modeling are the areas of his research interest, and he has guided several Ph. D....

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New FHWA VMT Forecasts and Implications for Local Planning


Post-Apocalyptic Zombies Ate Oregon’s Post-Recession, ATR Regression

Where: Room 204 of the Distance Learning Center Wing of the Urban Center at PSU

A summary of FHWA’s new national traffic trends assessment will be presented, including discussion of varied factors influencing forward-thinking forecasts. Examples of Oregon statewide vehicle miles travelled (VMT) and historic traffic trends from ATR stations in the Portland urban region and greater Willamette Valley will be highlighted. VMT, population and income data will be noted with implications on local transportation planning.

Andrew is an associate with David Evans & Associates, Inc., with over 28 years of experience in multimodal transportation planning with emphasis on sustainable community and Complete Street policy and plan development. He focuses on developing multimodal transportation plans with context-sensitive street standards and policies that implement enhanced bicycle and pedestrian use and circulation. His area of expertise includes measured pedestrian-access-to-transit connectivity, the implementation of...

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