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 19 of 19 for “"Traffic Systems"”.
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Information provision in rating systems and traffic systems
… provision in two contexts: online rating systems and traffic information systems. In the first part of the thesis, we develop a model of Bayesian learning from online reviews and investigate the conditions for asymptotic learning of the quality of a product. Moreover, we characterize the …
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Optimization and equilibrium in dynamic networks and applications in traffic systems
… models. In the third part, we introduce a new traffic information exchange system. The new system resolves the dilemma that broadcasting traffic predictions might affect drivers' behaviors and make the predictions inaccurate. We build game theoretic models to prove that drivers have incentives …
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Investigating the Properties and Existence of a Macroscopic Fundamental Diagram for Arterial and Freeway Traffic Systems
A field experiment in Yokohama (Japan) revealed that a macroscopic fundamental diagram (MFD) linking space-mean flow , density and speed exists on a large urban area. Despite these and other recent findings for the existence of well defined MFDs for urban areas, these MFDs should not be universally …
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Multi-tiered architecture for automatic sensor failure detection in traffic systems: edge-fog-cloud collaboration for enhanced accuracy
The increasing reliance on traffic sensor networks in intelligent transportation systems requires robust methods for ensuring the accuracy and reliability of sensor data. Traditional fault detection techniques often struggle with the high volume of data generated by these sensors, the dynamic …
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Hierarchical wireless framework for real-time collaborative generation and distribution of telemetry data
… information generation problem in large urban traffic systems. It addresses the challenge of realtime information generation and dissemination in such systems by designing and investigating a hierarchical real-time information framework. The research work is complemented by designing and …
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Model predictive control of timed continuous petri nets
… and analysis of discrete event/continuous systems. Their useful capabilities are studied. Finally, a macroscopic model based on PN as a tool for designing control laws that improve the behavior of traffic systems is given. The goal is to find an approach that minimizes the total delay of …
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New Perspectives on Modelling and Control for Next Generation Intelligent Transport Systems
… amounts of data generated in the context of traffic systems. We use a Markov chain model to do this, where important data can be taken into account in an aggregate form. The Markovian model is simple and allows for fast computation, even on low end computers, while at the same time allowing …
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ENHANCING TRAFFIC FLOW USING VEHICLE DASHBOARD TRAFFIC LIGHTS WITH V2I NETWORKS
… on streets nowadays makes it hard to manage traffic flow on the streets, especially in regards to intersection management. Research studies have been conducted to replace the Pre-timed traffic lights at the intersections with adaptive traffic lights control systems that base their timings on …
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Wireless Networking for Vehicle to Infrastructure Communication and Automatic Incident Detection
… road safety. These advances in technology enable traffic systems to use data collected from vehicles on the road to detect incidents. We develop an automatic incident detection method that has a significant active road safety application for alerting drivers about incidents and congestion. Our …
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Multicriteria Approximation of Network Design and Network Upgrade Problems
… the past decades. Today's telecommunication, traffic systems, and logistics would not have been evolved to the current state without careful analysis of the underlying network problems and precise implementation of the results obtained from those examinations. Graphs with node and arc …
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Control and diagnosis of real-time systems under finite-precision measurement of time
… of discrete changes (events). The domain of such systems encompasses aspects of many man-made systems such as manufacturing systems, telephone networks, communication protocols, traffic systems, embedded software, asynchronous hardware, robotics, etc.</p> <p>Supervisory control theory for DESs …
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Approximate Algorithms for the Combined arrival-Departure Aircraft Sequencing and Reactive Scheduling Problems on Multiple Runways
… Reactive Scheduling Problem (ARSP) as air traffic systems frequently encounter various disruptions due to unexpected events such as inclement weather, aircraft failures or personnel shortages rendering the initial plan suboptimal or even obsolete in some cases. This research considers …
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Semi-Cooperative Planning in Mixed Human-Autonomous Environments
… presents a challenge for even the most advanced systems. Algorithms and systems are needed for developing and evaluating socially-compliant planning algorithms for autonomous vehicles. In this thesis, we propose a semi-cooperative autonomy framework that considers the underlying social utility of …
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A delayed response policy for autonomous intersection management
… framework to be a substitute for current traffic light and stop signs. Automobiles in modern urban settings spend a lot of time idling at intersections. In 2007, US drivers wasted 4.16 billion hours of their time and 2.81 billion gallons of gas in congestion, costing a total of 87.2 …
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Modeling, monitoring and optimization of discrete event systems using Petri nets
… Monitoring and Optimization of Discrete Event Systems Using Petri Nets. Major Professor: Lingxi Li. In last decades, the research of discrete event systems (DESs) has attracts more and more attention because of the fast development of intelligent control strategies. Such control measures …
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Planning service facilities and infrastructures under continuous traffic equilibrium
… with one another due to induced or altered traffic congestion near these facilities. Disregarding the congestion effect while planning facility locations may not only lead to unnecessarily high transportation cost and low facility patronage, but also impose a negative socioeconomic impact on …
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Pedestrian safety at urban mid-block crossings
… measures to reduce pedestrian-related traffic crashes at mid-blocks. To determine the causation and occurrence of pedestrian-related traffic crashes in New Zealand, the research began by examining crash data and road safety strategies from 2000 to 2016 and compared New Zealand to some …
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Motorcars and magic highways: the automobile and communication in twentieth-century American literature and film
… of and the artistic response to the intelligent traffic systems and fully communicative automobiles that characterize driving in the twenty-first century. Late twentieth-century writers have associated this new stage of the automobile with decline and collapse. Don Delillo’s Cosmopolis details …
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Toward Robust and Generalizable Spatiotemporal Modeling for Tasks beyond Forecasting and Classification
… In diverse operational domains such as traffic systems, neurophysiological monitoring, and drilling operations, spatiotemporal data is often noisy, irregular, and subject to distribution shifts — exposing the brittleness of conventional forecasting and classification pipelines. This …