Wide-Area Network: An Evaluation of Probe Sources for Real-Time Traffic Information

This article advocates for the use of Global Positioning System (GPS) and cellular phone probes for the acquisition of real-time traffic data that has been hard to attain through other means in times past. The case is made through the situation in the Netherlands, where severe traffic congestion is prevalent. This technology, when gathered from cellular phones, is known as Cellular Floating Car Data (CFCD). The caller's location is triangulated and is used to determine traffic densities at various points on major roadways. While the approach is advocated by some, a study mentioned from the Florida State DOT (FDOT) does not consider CFCD to provide good enough data for proper traffic estimation. Another concern that is noted is the potential privacy concerns with locating persons via their cellular phone signals. A comparison is also discussed between cellular, GPS, sensor, and fusion methods to obtain traffic data, with fusion providing the greatest benefits.

Language

  • English

Media Info

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Filing Info

  • Accession Number: 01077126
  • Record Type: Publication
  • Source Agency: UC Berkeley Transportation Library
  • Files: BTRIS, TRIS
  • Created Date: Sep 28 2007 8:55AM