?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.relation=http%3A%2F%2Fmiis.maths.ox.ac.uk%2Fmiis%2F438%2F&rft.title=Management+of+interstate+rail+rollingstock&rft.creator=Barr%2C+H.&rft.subject=Transport+and+Automotive&rft.description=The+Study+Group+was+asked+to+develop+a+methodology+to+allow+more+efficient+and+effective+direction+of+empty+wagon+movements.+The+Study+Group+chose+to+develop+two+linear+programming+approaches.+One+was+for+allocating+empty+wagons%2C+and+the+other+modelled+both+empty+and+full+wagons.+Although+large+in+size%2C+the+models+were+otherwise+feasible%2C+showing+that%2C+conceptually%2C+the+method+would+work.+However%2C+there+is+still+a+major+amount+of+development+work+required+to+implement+the+system.&rft.date=1989&rft.type=Study+Group+Report&rft.type=NonPeerReviewed&rft.format=application%2Fpdf&rft.language=en&rft.identifier=http%3A%2F%2Fmiis.maths.ox.ac.uk%2Fmiis%2F438%2F1%2FManagement-of-interstate-rail-rollingstock.pdf&rft.identifier=++Barr%2C+H.++(1989)+Management+of+interstate+rail+rollingstock.++%5BStudy+Group+Report%5D+++++