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 20 of 21 for “"Traffic Delay"”.
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Traffic delay prediction from historical observations
Road traffic congestion is one of the biggest frustrations for the daily commuter. By improving the currently available travel estimates, one can hope to save time, fuel and the environment by avoiding traffic jams. Before one can predict the best route for a user to take, one must first be able to …
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The effect of scheduling on air traffic delay
… of computerized techniques to aid the air traffic controller during peak demand periods. By scheduling aircraft in a given system in a different manner, delay, caused by congestion, could possibly be reduced at high density terminals even more than it has been reduced by the results …
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Distributed optimization of traffic delay on a periodic switched grid network
… each unit (car or packet) accumulates some delay while traversing the network. This delay is undesirable but unavoidable, which makes minimizing the total average delay of the network given certain constraints, a desirable objective. In this work, we consider the case of periodic networks, …
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Optimizing Traffic Network Signals Around Railroad Crossings
… Crossing sAfety cOnstraints"(SOURCAO), to the traffic signal control near a highway rail grade crossing (HRGC). SOURCAO targets two objectives: HRGC safety improvement (a high priority national transportation goal) and highway traffic delay reduction (a common desire for virtually all of us). …
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Microscopic Control Delay Modeling at Signalized Arterials Using Bluetooth Technology
Real-time control delay estimation is an important performance measure for any intersection to improve the signal timing plans dynamically in real-time and hence improve the overall system performance. Control delay estimates helps to determine the level-of-service (LOS) characteristics of various …
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SCHEDULING OF PAVEMENT MAINTENANCE ACTIVITIES
… of pavement maintenance activities to reduce traffic delays at the network level using genetic algorithms. This thesis develops a new method of pavement maintenance scheduling at the road network level. Pavement maintenance management involves the coordination and control of a comprehensive …
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In Land Container Depots and Container Freight Services Decongestion Strategies: The Case Study of Tanzania Ports Authority
… cargos/parcels and income to the clients, ship traffic, delay of ship turn round time and lastly diversion of cargoes from Dar es Salaam seaport to other ports especially Mombasa seaport. It was also found that in general decongestion strategies have been not fully implemented by Tanzania …
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Operational effects of weigh-in-motion systems in weight enforcement
The effects of weigh-in-motion (WIM) systems on traffic operations and weight enforcement were compared and evaluated. The systems studied included high speed WIM, medium speed WIM and conventional static scales alone. The major measurements of effectiveness were traffic delay, queue, and the …
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Using tactical flight level resource allocation to alleviate congested en-route airspace
… Route flight levels as a means to mitigate air traffic congestion and stakeholder operating costs. The core of the methodology is a decision-aiding tool comprised of a Mixed-Integer Linear Program (MILP) that is solved using a an A* Search-based Branch & Bound framework. Two metrics, measuring …
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Advances in Traffic Signal Operations Management: Machine Learning Measurement and Transition Improvements Through High-Resolution Data
Traffic signal management plays a crucial role in optimizing traffic flow, reducing congestion, and improving travel time reliability at signalized intersections. This dissertation focuses on three key areas of research that aim to enhance the efficiency of traffic signal operations through the …
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Evaluating the Impacts of Connected Vehicle Technology on Evacuation Efficiency
… potential demands and many create evacuation traffic management plans. The findings from a St. Louis Metro East evacuation study revealed some problematic areas of the transportation network. At these locations the traffic backed up during a simulated evacuation, caused a significant amount of …
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Estimating the true extent of air traffic delays
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 …
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Optimal traffic control for a freeway corridor under incident conditions
… caused by incidents, is the main cause of traffic delays and causes up to 60 percent of the freeway delay in the United States. When severe incidents occur on freeways, capacity reduction due to lane blockages may cause an extremely high amount of traffic delay. In many cases, parallel …
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A dynamic traffic simulation/assignment model in the context of Advanced Driver Information Systems
… of many metropolitan areas which cause excessive traffic delay, instability of travel time generated the need for the development of an Intelligent Vehicle Highway System (IVHS) program that is capable of making significant improvements in mobility, highway safety, and productivity on highways and …
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On the power of (even a little) flexibility in dynamic resource allocation
… their inflexible counterparts in terms of delay and capacity, and sometimes be almost as good as fully flexible systems. Our main findings are: 1. Flexible architectures. We show that, just like in fully flexible systems, a large capacity region and a small delay can be achieved even with …
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Delay-Aware Multi-Path Routing in a Multi-Hop Network: Algorithms and Applications
Delay is known to be a critical performance metric for various real-world routing applications including multimedia communication and freight delivery. Provisioning delay-minimal (or at least delay-bounded) routing services for all traffic of an application is highly important. As a basic paradigm …
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Game traffic analysis and simulation in first person shooter environment
Internet delay is caused by transmission medium and also by routing and queuing. Although delay is often tolerable in many applications such as file transfer or Web, it does affect performances for delay-sensitive applications such as IP phone and video streaming. For First Person Shooter (FPS) …
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Probabilistic approaches to the design of wireless ad hoc and sensor networks
… link reliability, power efficiency, reducing the traffic delay and optimizing the sensor deployment. The effects of estimation accuracy on the reliability and the power consumption have been studied and analyzed. A new methodology is proposed to optimize the reliability and power efficiency by …
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Freight demand modeling and logistics planning for assessment of freight systems' environmental impacts
… generation, trip distribution, modal split, and traffic assignment. In case of the intra-regional freight movements, various network modeling and logistics systems optimization methodologies are applied to address a large-scale freight delivery problem in the U.S. freight zones and an individual …
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