An Energy-Saving Approach for Real-Time Highway Traffic Estimation Using GPS-Enabled Smartphones
| dc.contributor.advisor | Cheng, Albert M. K. | |
| dc.contributor.committeeMember | Shi, Weidong | |
| dc.contributor.committeeMember | Qiu, Jingmei | |
| dc.creator | Liu, Daxiao 1986- | |
| dc.date.accessioned | 2017-02-13T03:08:26Z | |
| dc.date.available | 2017-02-13T03:08:26Z | |
| dc.date.created | December 2014 | |
| dc.date.issued | 2014-12 | |
| dc.date.submitted | December 2014 | |
| dc.date.updated | 2017-02-13T03:08:26Z | |
| dc.description.abstract | This paper presents a microscopic traffic estimation algorithm for smartphones by employing their built-in probes such as GPS and acceleration sensors to increase the accuracy of real-time traffic condition estimation without significantly increasing the smartphones’ energy consumption. In this approach, real-time traffic data is collected through the smartphones of participating users traveling on urban roads. A new reporting algorithm is provided on the clients’ side to minimize the amount of time the smartphone maintains connection to the server. Based on the data received from each individual smartphone, real-time traffic conditions and the level of service (LOS) are estimated on the server side by applying the Kalman Filtering algorithm and link aggregating speed algorithm. An iOS application is developed to work as a sample client side smartphone node. Simulations of three different traffic scenario are also created to evaluate the performance of the algorithm. Simulation results show that the proposed algorithm requires less energy usage than existing methods without sacrificing the accuracy of real-time traffic estimations. | |
| dc.description.department | Computer Science, Department of | |
| dc.format.digitalOrigin | born digital | |
| dc.format.mimetype | application/pdf | |
| dc.identifier.uri | http://hdl.handle.net/10657/1631 | |
| dc.language.iso | eng | |
| dc.rights | The author of this work is the copyright owner. UH Libraries and the Texas Digital Library have their permission to store and provide access to this work. Further transmission, reproduction, or presentation of this work is prohibited except with permission of the author(s). | |
| dc.subject | Smartphone | |
| dc.subject | Real-time traffic | |
| dc.subject | Kalman filter | |
| dc.title | An Energy-Saving Approach for Real-Time Highway Traffic Estimation Using GPS-Enabled Smartphones | |
| dc.type.dcmi | Text | |
| dc.type.genre | Thesis | |
| thesis.degree.college | College of Natural Sciences and Mathematics | |
| thesis.degree.department | Computer Science, Department of | |
| thesis.degree.discipline | Computer Science | |
| thesis.degree.grantor | University of Houston | |
| thesis.degree.level | Masters | |
| thesis.degree.name | Master of Science |