LOOP CONFIGURATIONS FOR VEHICLE DETECTORS
D. J. P. Morris, F R Hulscher, K. Dean, Dan MacDonald · Australian Road Research Board Conference Proc · 1979
This paper was presented at session 16 - instrumentation for detection and data acquisition. This paper describes the general methodology and principal findings of a research project aimed at improving the performance of the loop transducer and associated cables for inductive loop vehicle detectors. The investigation sought to improve the conversion efficiency of the loop transducer whilst minimising the effects of electromagnetic interference, having due regard to constraints imposed by a wide range of road environments, vehicle characteristics, commercially available detector electronics and economic factors associated with both installation and maintenance. The relative performances of nine loop configurations are compared, and the requirements for the critical parameters of the associated cables are examined. (TRRL)