Staff Lead researchers Professor William Powrie Professor of Geotechnical Engineering Research interests Railway track and trackbed behaviour and performance Geotechnical transportation infrastructure (earthworks, retaining walls, tunnels) Groundwater and groundwater control Connect with William Email: W.Powrie@soton.ac.uk Other researchers Professor John Preston Professor in Rail Transport Research interests Demand, capacity and cost modelling for sustainable transport infrastructure. The design, monitoring and evaluation of transport interventions designed to promote sustainable choices. The determination of pathways for future mobility transitions to net zero carbon. Connect with John Email: J.M.Preston@soton.ac.uk Research outputs New routes on old railways: increasing rail’s mode share within the constraints of the existing railway network S.P. Blainey, J. Armstrong, A.S.J. Smith & J.M. Preston, 2016, Transportation, 43(3), 425-442 DOI: 10.1007/s11116-015-9582-5 Type: article