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dc.contributor.authorShao, Lu
dc.contributor.authorWang, Cheng
dc.contributor.authorLiu, Lu
dc.contributor.authorJiang, Changjun
dc.date.accessioned2017-05-10T11:51:25Z
dc.date.available2017-05-10T11:51:25Z
dc.date.issued2016-01-28
dc.identifier.citationShao, L. et al (2017) 'RTS: road topology-based scheme for traffic condition estimation via vehicular crowdsensing', Concurrency and Computation: Practice and Experience, 29 (3):e3778en
dc.identifier.issn15320626
dc.identifier.doi10.1002/cpe.3778
dc.identifier.urihttp://hdl.handle.net/10545/621592
dc.description.abstractUrban traffic condition usually serves as basic information for some intelligent urban applications, for example, intelligent transportation system. The traditional acquisition of such information is often costly because of the dependencies on infrastructures, such as cameras and loop detectors. Crowdsensing, as a new economic paradigm, can be utilized together with vehicular networks to efficiently gather vehicle-sensed data for estimating the traffic condition. However, it has the problem of being lack of data uploading efficiency and data usage effectiveness. In this paper, we take into account the topology of the road net to deal with these problems. Specifically, we divide the road net into road sections and junction areas. Based on this division, we introduce a two-phased data collection and processing scheme named road topology-based scheme. It leverages the correlations among adjacent roads. In a junction area, data collected by vehicles are first processed and integrated by a sponsor vehicle to locally calculate traffic condition. Both the selection of the sponsor and the calculation of road condition utilize the road correlation. The sponsor then uploads the local data to a server. By employing the inherent relations among roads, the server processes data and estimates traffic condition for the road sections without vehicular data in a global vision. We conduct experiments based on real vehicle trace data. The results indicate that our design can commendably handle the problems of efficiency and effectiveness in traffic condition evaluation using the vehicular crowdsensing data.
dc.description.sponsorshipN/Aen
dc.language.isoenen
dc.publisherWileyen
dc.relation.urlhttp://doi.wiley.com/10.1002/cpe.3778en
dc.rightsArchived with thanks to Concurrency and Computation: Practice and Experience This is the peer reviewed version of the following article: Shao, L. et al (2017) 'RTS: road topology-based scheme for traffic condition estimation via vehicular crowdsensing', Concurrency and Computation: Practice and Experience, 29 (3):e3778, which has been published in final form at https://onlinelibrary.wiley.com/doi/10.1002/cpe.3778. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versionsen
dc.subjectTraffic condition evaluationen
dc.subjectCrowdsensingen
dc.subjectVehicular networksen
dc.subjectRoad topologyen
dc.titleRTS: road topology-based scheme for traffic condition estimation via vehicular crowdsensingen
dc.typeArticleen
dc.contributor.departmentTongji Universityen
dc.contributor.departmentUniversity of Derbyen
dc.identifier.journalConcurrency and Computation: Practice and Experienceen
dc.contributor.institutionDepartment of Computer Science and Technology; Tongji University; Shanghai China
dc.contributor.institutionDepartment of Computer Science and Technology; Tongji University; Shanghai China
dc.contributor.institutionSchool of Computing and Mathematics; University of Derby; Derby UK
dc.contributor.institutionDepartment of Computer Science and Technology; Tongji University; Shanghai China
refterms.dateFOA2019-02-28T15:44:34Z
html.description.abstractUrban traffic condition usually serves as basic information for some intelligent urban applications, for example, intelligent transportation system. The traditional acquisition of such information is often costly because of the dependencies on infrastructures, such as cameras and loop detectors. Crowdsensing, as a new economic paradigm, can be utilized together with vehicular networks to efficiently gather vehicle-sensed data for estimating the traffic condition. However, it has the problem of being lack of data uploading efficiency and data usage effectiveness. In this paper, we take into account the topology of the road net to deal with these problems. Specifically, we divide the road net into road sections and junction areas. Based on this division, we introduce a two-phased data collection and processing scheme named road topology-based scheme. It leverages the correlations among adjacent roads. In a junction area, data collected by vehicles are first processed and integrated by a sponsor vehicle to locally calculate traffic condition. Both the selection of the sponsor and the calculation of road condition utilize the road correlation. The sponsor then uploads the local data to a server. By employing the inherent relations among roads, the server processes data and estimates traffic condition for the road sections without vehicular data in a global vision. We conduct experiments based on real vehicle trace data. The results indicate that our design can commendably handle the problems of efficiency and effectiveness in traffic condition evaluation using the vehicular crowdsensing data.


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