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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.

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Showing 1 to 20 of 76 for “"O-D"”.

  1. Airline O-D control using network displacement concepts

    Wei, Yuanyuan (Yuanyuan Julie)Massachusetts Institute of Technology1997

    Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 1997.

    mit Repository record

  2. Fundamental properties of Synthetic O-D Generation Formulations and Solutions

    Paramahamsan, HarinarayanVirginia Tech1999

    Origin-Destination (O-D) matrices are required in order to model traffic routing behavior in networks. Direct techniques for collecting O-D information from home and roadside interviews have historically been utilized to estimate O-D tables. However, these techniques are not only very costly, labor …

    vt Repository record

  3. The O-D shortest path problem and connectivity problems on periodic graphs

    Kodialam, Muralidharan S., 1963-Massachusetts Institute of Technology1992

    Thesis (Ph. D.)--Massachusetts Institute of Technology, Sloan School of Management, 1992.

    mit Repository record

  4. A Method to Enhance the Performance of Synthetic Origin-Destination (O-D) Trip Table Estimation Models

    Nanda, DhruvVirginia Tech1997

    The conventional methods of determining the Origin-Destination (O-D) trip tables involve elaborate surveys, such as home interviews, requiring considerable time, manpower and funds. To overcome this drawback, a number of theoretical models that synthesize O-D trip tables from link volume data have …

    vt Repository record

  5. A linear programming approach for synthesizing origin-destination (O-D) trip tables from link traffic volumes

    Sivanandan, R.Virginia Tech1991

    This research effort is motivated by the need to quickly obtain origin-destination (0-0) trip information for an urban area, without expending the excessive time and effort usually accompanying survey-based methods. The intent is to utilize this information to facilitate diversion of traffic in …

    vt Repository record

  6. Superficies de energía potencial MRCI y dinámica de las reacciones químicas F(²?)+OH(²?)->HF(¹?)+O(³?, ¹D, ¹S)

    Gómez Carrasco, Susana Raquel2005

    salamanca Repository record

  7. A Linear Programming Method for Synthesizing Origin-Destination (O-D) Trip Tables from Traffic Counts for Inconsistent Systems

    Lei, PengVirginia Tech1998

    Origin-Destination (O-D) trip tables represent the demand-supply information of each directed zonal-pair in a given region during a given period of time. The effort of this research is to develop a linear programming methodology for estimating O-D trip tables based on observed link volumes. In …

    vt Repository record

  8. E M B O D I M E N T : mental and physical geographies of the neo-nomad

    Abbas, YasmineMassachusetts Institute of Technology2001

    Globalization is today significantly debated. The ineluctable phenomenon has led to homogenization, hybridization, cultural confusion, and social disorders. The resulting chaos has been translated by a loss of landmarks, which has consequently engendered mental and physical displacements. New …

    mit Repository record

  9. A linear programming approach for synthesizing origin-destination (O-D) trip tables based on a partial set of link traffic volumes

    Narayanan, ArvindVirginia Tech1995

    This research effort is motivated by the need to quickly obtain origin-destination (O-D) trip information for an urban area, without expending the excessive time and effort usually accompanying survey-based methods. The proposed approach aims to exploit the information contained even in a "partial …

    vt Repository record

  10. Modellering van de klassiek alkalisch-gekatalyseerde oxidatieve degradatie van lactose tot Beta-O-(D-galactopyranosyl)-(1->3)-D-arabinonaat en formiaat

    van den Hoogen, J.H.A.1991

    eindhoven Repository record

  11. Observability of Origin-Destination matrices for Dynamic Traffic Assignment

    Gupta, Ashish, S.M. Massachusetts Institute of TechnologyMassachusetts Institute of Technology2005

    The estimation of dynamic Origin-Destination (O-D) matrices from aggregated sensor counts is one of the most important and well-researched problems in Dynamic Traffic Assignment (DTA) systems. In practice, more often than not, number of sensors are far less than the number of potential O-D pairs, …

    mit Repository record

  12. Calibration of the demand simulator in a dynamic traffic assignment system

    Balakrishna, Ramachandran, 1978-Massachusetts Institute of Technology2002

    In this thesis, we present a methodology to jointly calibrate the O-D estimation and prediction and driver route choice models within a Dynamic Traffic Assignment (DTA) system using several days of traffic sensor data. The methodology for the calibration of the O-D estimation module is based on an …

    mit Repository record

  13. Multiclass Origin-Destination Estimation Using Multiple Data Types

    Zhao, QingCornell University2013

    Estimating O-D tables for trucks is of substantial interest due to different emission characteristics, pavement damage, etc of trucks. This thesis proposes a bilevel optimization model and corresponding solution method for static multi-class O-D estimation using various types of data. Limited …

    cornell Repository record

  14. Geovisualization and Open-Source Web Mapping of Big Origin-Destination Data, a Test Case

    Hiebert, Joseph2022

    <p>Migration plays a key role in determining the health and success of cities, counties, and countries. It also plays a key role in determining the health and wellbeing of the individuals and families that undergo a migration event. This has led many scholars to map and study global migration …

    denver Repository record

  15. Exploratory Spatial Data Analysis for Origin and Destination Flow Data

    Syabri, IbnuUniversity of Illinois at Urbana-Champaign2015

    The focus of this dissertation lies in the research tradition of ESDA, which requires explicitly the existence of geographical attributes in the datasets, interactive visualization tools and dynamic graphics. In this study, I propose a new set of techniques for exploring O-D flow data and integrate …

    uiuc Repository record

  16. RF phase modulation of optical signals and optical/electrical signal processing

    Andrikogiannopoulos, Nikolas IMassachusetts Institute of Technology2006

    Analog RF phase modulation of optical signals has been a topic of interest for many years, mainly focusing on Intensity Modulation Direct Detection (IMDD). The virtues of coherent detection combined with the advantages of Frequency Modulation, however, have not been explored thoroughly. By …

    mit Repository record

  17. Estimating the true extent of air traffic delays

    El Alj, Yasmine, 1978-Massachusetts Institute of Technology2003

    Most air traffic delay measures assess delays relative to schedule. Over the past decades, however, airline schedules have been adjusted to take into account airspace congestion and yield better on-time performance. In that context, delay measures that are using scheduled times as a benchmark are …

    mit Repository record

  18. Dynamic estimation of origin-destination trip-tables from real-time traffic volumes using parameter optimization methods

    Arora, NamitaVirginia Tech1993

    The motivation behind this research is the need for a real-time implementable, yet accurate, procedure for estimating an origin-destination (O-D) trip-table based on entering and exiting traffic volume data for a given freeway section. These tables help in on-line control of traffic facilities, and …

    vt Repository record

  19. Evolution of domestic traffic and fares at the top 200 US airports between 1990 and 2008

    Ben Abda, MehdiMassachusetts Institute of Technology2010

    The main objective of this thesis is to analyze the evolution of domestic Origin- Destination (O-D) traffic and fares at the Top 200 airports in the United States between 1990 and 2008. The impetus behind this research is to shed light on the differences in trends between the largest and smallest, …

    mit Repository record

  20. Measuring journey time reliability in London using automated data collection systems

    Schil, Mickaël (Mickaël René Jerôme)Massachusetts Institute of Technology2012

    Service reliability is critical for both users and operators of transit systems. The rapid spread of Automated Data Collection Systems, such as Automated Fare Collection (AFC) and Automatic Vehicle Location (AVL), provides new sources of information that can be used to measure and assess service …

    mit Repository record

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