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 14 of 14 for “"Traffic estimation"”.
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Traffic estimation, sensing, and control in work zone environments
… of smart work zone systems from the aspects of traffic estimation, sensing, and control. To understand the impact of the sensing technologies and estimation algorithms, several hundred combinations of sensor network configurations and traffic estimation algorithms are assessed in a traffic micro …
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Unsupervised tracking algorithm for precise traffic estimation in panoramic scenes
The student, Fangyu Wu, accepted the attached license on 2018-04-04 at 23:48.
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A distributed local Kalman consensus filter for traffic estimation: design, analysis and validation
… filter (DLKCF) for large-scale multi-agent traffic density estimation. The switching mode model (SMM) describes the traffic dynamics on a stretch of roadway, and the model dynamics are linear within each mode. The error dynamics of the proposed DLKCF is shown to be globally asymptotically …
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Deep learning-based framework for traffic estimation for the MLK Smart Corridor in downtown Chattanooga, TN
… movement direction identification, and speed estimation. We chose YOLOv7 for objects detection given its ability to run up to 160 fps. We trained YOLOv7 to detect and classify vehicles into four classes with a reported mean average precision of 0.69. For re-identification, we refined the …
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Scalable online estimation with performance guarantees: Application to traffic network monitoring
… is motivated by the need for scalable online estimation with provable performance in cyber-physical systems, especially in traffic monitoring applications. While model-based traffic estimation has achieved great success via experimental deployments, there are substantial open questions on the …
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Estimation of origin-destination flows for dynamic traffic assignment
… and method for dynamic origin-destination demand estimation. OD estimation is a critical component of a Dynamic Traffic Assignment system in that it determines the frequencies of drivers' trips through a network. The OD estimation method presented here allows for tunable optimization to three …
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ΒΕΛΤΙΩΣΗ ΤΗΣ ΤΕΧΝΙΚΗΣ ΔΟΚΙΜΑΣΤΙΚΩΝ ΤΗΛΕΦΩΝΙΚΩΝ ΚΛΗΣΕΩΝ
… OF THE TELEPHONE NETWORK AND THE LOCATION OF TRAFFIC BOTTLENECKS AT INTERMEDIATE TRUNKS OF THE ROUTES. IN THE SECOND PART A NEW METHOD OF ESTIMATING THE OFFERED TRAFFIC, THE LOAD AND THE LOSS FROM THE TEST-CALLING RESULTS AT EACH PART OF A TELEPHONE ROUTE IS PRESENTED. THE METHOD LEADS TO THE …
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Patterns in Chicago traffic
… The main objective of this thesis is to infer traffic trends in the city of Chicago through Time Series Analysis of taxi trips by observing the trends and general statistics of the hourly and daily variations in taxi trips in terms of mean trip counts and mean speeds. We also observe the hourly …
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Artificial Intelligence and Spatial Modeling to Estimate Traffic Volume Measures on Local Roadways
… techniques to estimate Annual Average Daily Traffic (AADT) on local roadways, which are often data-scarce yet crucial for transportation planning and infrastructure development. Traditional traffic monitoring methods, such as permanent traffic count stations and short-term manual counts, are …
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Development and application of dynamic models for predicting transit arrival times
Stochastic variations in traffic conditions and ridership often have a negative impact in transit operations resulting in the deterioration of schedule/headway adherence and lengthening of passenger wait times. Providing accurate information on transit vehicle arrival times is critical to reduce …
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Estimating post-disaster traffic conditions using real-time data streams
… determine the effects of an earthquake on road traffic conditions by linking seismic hazard and bridge fragility models with a traffic model and traffic sensor data. Using the earthquake characteristics as an input to the traffic model, the traffic conditions are sequentially estimated given …
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Data-driven modeling and transportation data analytics
… transportation research. Unfortunately, existing traffic models, though developed and practiced for decades, are not data driven and therefore inherently incapable of analyzing modern traffic data from multiple sources with different time resolution and spatial coverage. A new paradigm centered on …
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MONITORAGGIO, STIMA E PREVISIONE REAL-TIME DEL TRAFFICO VEICOLARE CON TECNOLOGIE ITS. IMPLEMENTAZIONE DI UN SISTEMA SPERIMENTATO NELL AREA URBANA DI CATANIA
… implementation and calibration) of a traffic monitoring, estimating and short-term forecasting system, through the integration of real-time traffic data in a dynamic simulation model. The proposed methodology allows the identification of the conceptual model that represents the basis …