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Now showing items 31-40 of 117
Analysis of airside operations at Singapore Changi Airport
(Massachusetts Institute of Technology, 2019)
Air travel demand has been on an upward trend in recent years, and airports have thus become increasingly congested. To alleviate airport congestion, building new infrastructure such as runways to improve capacity is an ...
Characterization and short term forecasting of the US long haul truckload spot market
(Massachusetts Institute of Technology, 2019)
Accurate forecasting of transportation costs is a key step in logistical planning. It helps buyers and sellers of transportation services make better decisions at all stages of a supply chain, thus creating a significant ...
A Petri Net framework for the representation and analysis of aircraft turnaround operations
(Massachusetts Institute of Technology, 2019)
Aircraft turnaround operations is a key determinant of both airline and airport performance. Airlines incur both direct and indirect costs from poor on-time departure performance, particularly when these delays propagate ...
Estimating the impacts of route changes for Chicago's rapid transit system
(Massachusetts Institute of Technology, 2019)
The Chicago Transit Authority is the second largest transit agency in the US, and the CTA's rail transit division currently serves nearly half of the rides in the system. The system is adaptable to changes in population ...
Reinterpreting vehicle ownership in the era of shared and smart mobility
(Massachusetts Institute of Technology, 2019)
Emerging transportation technologies like autonomous vehicles and services like on-demand shared mobility are casting their shadows over the traditional paradigm of vehicle ownership. Several countries are witnessing ...
Future transit service for a broader user base : demand analysis of hypothetical autonomous vehicle mobility services using a stated preference approach
(Massachusetts Institute of Technology, 2019)
Mobility services and autonomous vehicles (AVs) are predicted to be key revolutionary forces in the future of transportation. In particular, certain forms of the amalgamations of the two technologies not only are expected ...
Bundled mobility passes : a framework for partnership between public transit and new mobility services
(Massachusetts Institute of Technology, 2019)
The emergence and proliferation of "new" mobility has the potential to fundamentally disrupt urban mobility in the 21st century. This includes bikesharing, carsharing, or on-demand vehicles that can be summoned from a ...
Modeling crowding levels by trains in high-frequency transit service operating near capacity
(Massachusetts Institute of Technology, 2018)
Measuring rail system crowding is important to transit agencies. Crowding data has implications for safety, operations control, service planning, performance measurement, and customer information. This paper proposes a ...
Learning structure in nested logit models
(Massachusetts Institute of Technology, 2019)
This work is about developing an estimation procedure for nested logit models that optimizes over the nesting structure in addition to the model parameters. Current estimation practices require an a priori specification ...
Constrained extended Kalman filter : an efficient improvement of calibration for dynamic traffic assignment models
(Massachusetts Institute of Technology, 2016)
The calibration (estimation of inputs and parameters) for dynamic traffic assignment (DTA) systems is a crucial process for traffic prediction accuracy, and thus critical to global traffic management applications to reduce ...