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Transportation System Modeling in the Information Era

Karthik Charan KonduriNicholas Earl Lownes

出版	New England University Transportation Center, 2016
URL	http://books.google.com.hk/books?id=05SrzQEACAAJ&hl=&source=gbs_api

註釋"Enabled by advances in technology, Real-time Information Systems (RITS) are increasingly being deployed as a solution to address the congestion issues we face today. RTIS solutions aim to provide roadway users with up to date information on travel times along roadway corridors allowing users to make informed decisions about routes, destinations, modes, and/or activity scheduling and sequencing. RTIS promises the ability to provide upto-the-minute network-wide traffic conditions to people through a variety of technological solutions including smart phones, global positioning systems, and in-vehicle technologies. The potential of RTIS for improving the efficiency of different aspects of the activity and travel choices is undisputed. However, individuals may access and use the information to different extents and in different ways, with due consideration to their unique contextual situations characterized by time-space constraints, household obligations and interactions, modal availability and accessibility, and built environment attributes. The net impact of a RTIS strategy on activity-travel patterns of individuals, and on the transportation network as a whole, is complicated to assess. Therefore, there is a need for a comprehensive model system that can be utilized to systematically assess the direct and cascading impacts of real-time services such as RTIS. The focus of this research effort was twofold, namely, 1) develop a conceptual modeling framework for the activity-travel generation problem to accurately represent the behavioral dynamics that result from information provision and usage and implement the conceptual framework using existing microsimulation models of travel demand and dynamic traffic assignment to build an integrated model prototype. In the next section an overview of the conceptual modeling framework is presented. In the following section, the prototype of the integrated model system is described. In the last section, ongoing and future research on the topic are described."--