Theses and Dissertations from UMD

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New submissions to the thesis/dissertation collections are added automatically as they are received from the Graduate School. Currently, the Graduate School deposits all theses and dissertations from a given semester after the official graduation date. This means that there may be up to a 4 month delay in the appearance of a give thesis/dissertation in DRUM

More information is available at Theses and Dissertations at University of Maryland Libraries.

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Author: search.filters.author.Cong, XiaojieSubject: search.filters.subject.MD GPS survey

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    Using Traditional Household Survey and GPS Data for Advanced Travel Behavior and Emission Analysis
    (2012) Cong, Xiaojie; Zhang, Lei; Civil Engineering; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)
    National and regional travel survey data have been widely collected in recent years. This thesis research employs National Household Travel Survey (NHTS) and Maryland GPS survey data sources to accomplish the following two objectives. The primary goal of the study is to assess how residential density, employment density, land use mix, and average block size measured at both the residential locations and at the activity space level influence vehicle miles travelled (VMT) with the Maryland GPS survey data. The secondary goal of the project is to examine the impact of time of day, day of week, trip purpose, vehicle type, gas price on vehicle soak time distributions with the 2009 NHTS data. Econometric models with panel data and Generalized Gamma techniques are developed for the impact analysis.