This paper considers the development of an adaptive incident management system that utilises three incident detection methodological approaches. Each methodology is dynamically chosen within the system according to real time traffic flow monitoring thus utilising the specific strengths of a given algorithm. The system is lane based with each lane capable of determining one of three operational traffic modes; low, medium and high volume. The outstations preprocess statistical data which is transferred to the IMS controller every 10 seconds. Five-minute periods (sets) are recorded and the user selects from one to thirty of the most recent sets for use as 'instantaneous' data. Selection in this manner enables a degree of 'smoothing' in respect to incident detection. The data is also stored for historical reference. The system will detect deviant vehicle behaviour at vehicle flow rates as low as one vehicle an hour as each vehicle is individually tracked through the system in the light traffic mode. (a) For the covering entry of this conference, please see IRRD abstract no. E200397.


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Media Info

  • Features: References;
  • Monograph Title: Digital maps are the key components for ITS applications

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Filing Info

  • Accession Number: 00794850
  • Record Type: Publication
  • Source Agency: ARRB
  • Files: ITRD, ATRI
  • Created Date: Jul 7 2000 12:00AM