Guoqing JingDr Jing is currently Professor of Highway and Railway Engineering Department at Beijing Jiaotong University, China. He obtained his PhD degree in civil engineering from INSA de Rennes, France. He served as a Vice Director of the State Key Lab of Wateproof for China, and Guest Professor for UMP, Malaysia etc. Professor Jing is currently working on ballasted track, especially recycled and composite materials, with numerical tools DEM and FEM Read More Read Less