Deriving the vehicle speeds from a mobile telecommunications network

Ren Huang Liou, Yi-Bing Lin, Yu Long Chang, Hui-Nien Hung, Nanfu Peng, Ming-Feng Chang

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


Vehicle speeds are often measured by intelligent transportation systems (ITSs) by utilizing sensors or software solutions. Our previous work proposed the Lin-Chang-Huangfu (LCH) scheme to compute the cell residence times by the standard counter values in mobile telecommunications switches. In this paper, we use mathematical and statistical developments to investigate the accuracy of the LCH scheme by deriving the bias of the cell residence times computed in this scheme. Then, we extend the LCH scheme with some filtering and compensation techniques for vehicle speed estimation and validate our approach with vehicle detector (VD) measurements at National Highway 3, Longtan Township, Taoyuan County, Taiwan. Our study indicates that the LCH scheme is an effective approach to vehicle speed estimation.

Original languageAmerican English
Article number6497694
Pages (from-to)1208-1217
Number of pages10
JournalIEEE Transactions on Intelligent Transportation Systems
Issue number3
StatePublished - 12 Apr 2013


  • Lin-Chang-Huangfu (LCH) scheme
  • mobile switching center (MSC)
  • telecommunication
  • vehicle speed


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