Wrong side failure of track circuits a review of the current knowledge of the effects of rail surface contamination on the operation of low voltage D.C. track circuits (IM-CPC-010)

In the past a number of studies have been carried out into the nature of the contaminants commonly found on rail surfaces. The interest has been stimulated by the effects of such contamination on both rail/wheel adhesion and track circuit operation. A number of reports issued from 1968 onwards...