Global ETD Search
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 10 of 10 for “"OD matrix"”.
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Rail transit OD matrix estimation and journey time reliability metrics using automated fare data
… of each transit system require the methodologies to be tailored to solve its needs.
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The value of automated fare collection data for transit planning : an example of rail transit OD matrix estimation
… service and operations planning decisions. Today, many agencies can add to their existing planning toolbox the data obtained from new Automated Fare Collection (AFC) technologies. By adding this dataset, transit agencies can boost their analytical capabilities and deal with some planning …
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The planning and analysis implications of automated data collection systems : rail transit OD matrix inference and path choice modeling examples
… Authority. One study proposes an enhanced method of inferring the rail trip OD matrix from an origin-only AFC system to replace the routine passenger survey. The proposed algorithm takes advantage of the pattern of a person's consecutive transit trip segments. In particular the study examines …
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Bus passenger Origin-Destination Matrix estimation using Automated Data Collection systems
… estimate a Bus Passenger Trip Origin-Destination Matrix (OD Matrix) based on ADC system archived data including Automated Fare Collection (AFC data, Automatic Passenger Count (APC data, and Automatic Vehicle Location (AVL) data. This algorithm consists of three steps: data preparation, estimation …
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Dynamic OD Estimation with Bluetooth Data Using Kalman Filter
… and ATIS are dynamic travel times and dynamic OD matrices. Bluetooth devices detection technology has been increasingly used to track vehicle movements on the network. This possibility naturally raises the question of whether this information can be used to improve the dynamic estimation of OD …
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Bluetooth based dynamic critical route volume estimation on signalized arterials
… technique that provides the opportunity to modify traditional methodologies to improve system performance. Actual volume in the network is a result of the timing plans which are designed and modified based on the volume which is generated using existing timing plans in the system. This …
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Evaluating the impact of interventions on network capacity
… of a network in MITSIMLab, the network is flooded with vehicles by scaling the origin-destination (OD) matrix. The network is assumed to reach its capacity when pre-trip queues start forming that is no further vehicles can be loaded in the network. The total distance travelled by all the …
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Predicting Ridership and Travel Time Impacts of Bus Service Changes Using Sketch Planning Methods
… analysts to assess different scenarios and accommodate quick turnarounds. This thesis provides a sketch planning framework for predicting ridership and travel time impacts of bus service changes, with a focus on direct demand models and the use of an open-source multimodal routing algorithm. The …
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Post-Disaster Road Network Resilience Assessment
… Following natural disasters, such as flooding, earthquakes, tsunami, hurricanes, and volcanoes, transportation systems are disrupted resulting in cities, towns, and villages being isolated for a period of time causing post-disaster response issues, evacuation difficulties, accessibilities …
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Measuring Accessibility to Primary Care Physicians in the Nashville Metropolitan Statistical Area
… A Two-Step Floating Catchment Area (2SFCA) method was implemented to measure spatial accessibility to PCPs. This method was applied to measure accessibility at the level (census block) that most accurately represents the spatial population of the Nashville MSA. In addition, this research …