The low adhesion conditions could just slip away with a new sander design. Low adhesion causes an average of 350,000 delay minutes each year and can result in station overruns and signals passed at danger. But the Double Variable Rate Sander could make this a thing of the past. This challenge goes beyond autumn and it is a fact that low adhesion affects the railway all year around, making braking distances unpredictable. This not only negatively affects today’s railway operations but also industry’s aspiration of running more trains per hours.
Sanders are routinely used on trains to reduce the impact of slippery rail head conditions by blasting sand between the wheel and the rail. RSSB undertook research to find out how the rail industry can optimise the use of sanders. A
three-month programme of full scale testing at the Rail Innovation and Development Centre at Melton Mowbray, using two new Class 387 trains loaned by Great Western Railway, generated a robust dataset from over 220 test runs covering various configurations of sanders, test speed and train formation.