Accurate Real-Time Traffic Speed Estimation Using Infrastructure-Free Vehicular Networks
Real-time traffic speed is indispensable for many ITS applications, such as traffic-aware route planning and eco-driving advisory system. Existing traffic speed estimation solutions assume vehicles travel along roads using constant speed. However, this assumption does not hold due to traffic dynamic...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2015-10-01
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| Series: | International Journal of Distributed Sensor Networks |
| Online Access: | https://doi.org/10.1155/2015/530194 |
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| _version_ | 1849306602608263168 |
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| author | Zongjian He Buyang Cao Yan Liu |
| author_facet | Zongjian He Buyang Cao Yan Liu |
| author_sort | Zongjian He |
| collection | DOAJ |
| description | Real-time traffic speed is indispensable for many ITS applications, such as traffic-aware route planning and eco-driving advisory system. Existing traffic speed estimation solutions assume vehicles travel along roads using constant speed. However, this assumption does not hold due to traffic dynamicity and can potentially lead to inaccurate estimation in real world. In this paper, we propose a novel in-network traffic speed estimation approach using infrastructure-free vehicular networks. The proposed solution utilizes macroscopic traffic flow model to estimate the traffic condition. The selected model only relies on vehicle density, which is less likely to be affected by the traffic dynamicity. In addition, we also demonstrate an application of the proposed solution in real-time route planning applications. Extensive evaluations using both traffic trace based large scale simulation and testbed based implementation have been performed. The results show that our solution outperforms some existing ones in terms of accuracy and efficiency in traffic-aware route planning applications. |
| format | Article |
| id | doaj-art-316b4e7d14e14fb6b7e2d525865cd7ad |
| institution | Kabale University |
| issn | 1550-1477 |
| language | English |
| publishDate | 2015-10-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Distributed Sensor Networks |
| spelling | doaj-art-316b4e7d14e14fb6b7e2d525865cd7ad2025-08-20T03:55:01ZengWileyInternational Journal of Distributed Sensor Networks1550-14772015-10-011110.1155/2015/530194530194Accurate Real-Time Traffic Speed Estimation Using Infrastructure-Free Vehicular NetworksZongjian HeBuyang CaoYan LiuReal-time traffic speed is indispensable for many ITS applications, such as traffic-aware route planning and eco-driving advisory system. Existing traffic speed estimation solutions assume vehicles travel along roads using constant speed. However, this assumption does not hold due to traffic dynamicity and can potentially lead to inaccurate estimation in real world. In this paper, we propose a novel in-network traffic speed estimation approach using infrastructure-free vehicular networks. The proposed solution utilizes macroscopic traffic flow model to estimate the traffic condition. The selected model only relies on vehicle density, which is less likely to be affected by the traffic dynamicity. In addition, we also demonstrate an application of the proposed solution in real-time route planning applications. Extensive evaluations using both traffic trace based large scale simulation and testbed based implementation have been performed. The results show that our solution outperforms some existing ones in terms of accuracy and efficiency in traffic-aware route planning applications.https://doi.org/10.1155/2015/530194 |
| spellingShingle | Zongjian He Buyang Cao Yan Liu Accurate Real-Time Traffic Speed Estimation Using Infrastructure-Free Vehicular Networks International Journal of Distributed Sensor Networks |
| title | Accurate Real-Time Traffic Speed Estimation Using Infrastructure-Free Vehicular Networks |
| title_full | Accurate Real-Time Traffic Speed Estimation Using Infrastructure-Free Vehicular Networks |
| title_fullStr | Accurate Real-Time Traffic Speed Estimation Using Infrastructure-Free Vehicular Networks |
| title_full_unstemmed | Accurate Real-Time Traffic Speed Estimation Using Infrastructure-Free Vehicular Networks |
| title_short | Accurate Real-Time Traffic Speed Estimation Using Infrastructure-Free Vehicular Networks |
| title_sort | accurate real time traffic speed estimation using infrastructure free vehicular networks |
| url | https://doi.org/10.1155/2015/530194 |
| work_keys_str_mv | AT zongjianhe accuraterealtimetrafficspeedestimationusinginfrastructurefreevehicularnetworks AT buyangcao accuraterealtimetrafficspeedestimationusinginfrastructurefreevehicularnetworks AT yanliu accuraterealtimetrafficspeedestimationusinginfrastructurefreevehicularnetworks |