Study of the stationary rail/wheel contact in the case of oxidized track

Scientific principles of electrical contact between two solid bodies having oxidised surfaces

Influence exerted by sanded rails and soiled or oxidised running treads of wheels on the functioning of track circuits

Electrical contact between rail and rolling wheel in the case of oxidised surfaces. Impedance of wheelsets as a function of the frequency

Continuous train control, prepared by WP S 1005

Principles

Evaluation of the tenders received from industry

General description of speed control systems Determination of information require ments

Technical solutions and costs of dif ferent control systsems for track of comparison

Results of practical transmission tests and measurements of track conductor characteristics