policy brief
An activity-based modeling toolbox was produced for planning
agencies to investigate the effects certain policies have on travel
demand.
conference paper
The emergence of supply-side competition in the advanced traveler information system (ATIS) industry and marketability of private ATIS service are examined. An architectural model in which the ATIS companies collect network information from their subscribers while providing them with real-time traffic information is described. A simulation study on competition and cooperation among multiple private and public information agencies follows. This study focuses on analyzing the interaction among information agencies and the effect of this interaction on traffic system performance.
conference paper
conference paper
Our daily driving experience and empirical observations suggest that traffic patterns in a road network are relatively stationary during peak periods. In numerous transportation network studies, there has been an implicit conjecture that stationary states exist in a network when origin demands, route choice proportions, and destination supplies are constant. In this study, we first rigorously formulate the conjecture within the framework of a network kinematic wave theory with an invariant junction model. After defining stationary states, we derive a system of algebraic equations in 3-tuples of stationary link flow-rates, demands, and supplies. We then introduce a new definition of junction critical demand levels based on effective demands and supplies. With a map in critical demand levels, we show that its fixed points and, therefore, stationary states exist with the help of Brouwer’s fixed point theorem. For two simple road networks, we show that the map is well-defined and can be used to solve stationary states with a brute-force method. Finally we summarize the study and present some future extensions and applications. (C) 2015 The Authors. Published by Elsevier B.V.
published journal article
published journal article
published journal article
conference paper
conference paper
conference paper
The construction of a public transit system in a large metropolitan area can relieve congestion, enhance mobility, and improve air quality. In a well-functioning housing market, these benefits are reflected in housing prices. In this paper, we analyze transactions for 2007 and 2009 of apartments with elevators from Kaohsiung (Taiwan’s second largest city) using a geographically weighted regression hedonic model to capture the impact of the opening in 2008 of a new mass rapid transit (MRT) system. We find that the opening of the MRT had a statistically significant and positive impact on the value of apartments with elevators that was not yet fully capitalized in 2007 prices.