Saving railways from sand
by Sandrine Ceurstemont The most serious hazard from windblown sand is train derailment, so trains typically travel at a reduced speed on windy days as a precaution. ‘Fewer trains are passing per hour,’ said Dr Lorenzo Raffaele, a wind engineer at the von Karman Institute for Fluid Dynamics in Sint-Genesius-Rode, Belgium. ‘This causes a loss…