Above ground Scoot and Mova detection in practice

The development of the Siemens Heimdall above ground detectors for SCOOT and MOVA is outlined. After considering several options, radar operating at 24 GHz was found to be the optimum choice. The design of the radar antenna assembly and modifications made to overcome problems encountered are described. Extensive testing was undertaken at the Siemens Poole test site where data from a reference loop was used as a control. Count and occupancy measurements appeared satisfactory but the Link Profile Unit (LPU), a weighted amalgamation of 'detector flow' and 'detector occupancy', gave a poor comparison. Modifications made to the radar system and signal processing improved LPU performance. A number of differences are identified in the data collected by radar and by loop. Trial installations were then carried out at 7 sites. The results from two sites are considered including a SCOOT site in Winchester which showed good correlation. A number of validations carried out at a new MOVA site without loops in Wimborne are described together with an assessment by the Transport Research Laboratory of the effectiveness of the system.


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  • Accession Number: 01147141
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD
  • Created Date: Dec 24 2009 8:46AM