<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>10</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Lv, Qiming</style></author><author><style face="normal" font="default" size="100%">Skrobanski, George</style></author><author><style face="normal" font="default" size="100%">Smith, Mike</style></author><author><style face="normal" font="default" size="100%">Springham, James</style></author><author><style face="normal" font="default" size="100%">Woods, A</style></author><author><style face="normal" font="default" size="100%">Gordon, Andrew</style></author></authors><secondary-authors><author><style face="normal" font="default" size="100%">Heydecker, Benjamin G</style></author></secondary-authors></contributors><titles><title><style face="normal" font="default" size="100%">A two-direction method for variable demand traffic assignment</style></title><secondary-title><style face="normal" font="default" size="100%">IMA Conference on &quot;Mathematics in Transport&quot; Sept 2005.</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2007</style></year></dates><publisher><style face="normal" font="default" size="100%">Elsevier</style></publisher><pub-location><style face="normal" font="default" size="100%">London</style></pub-location><pages><style face="normal" font="default" size="100%">71-95</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Usually in optimisation a single search direction is utilised at each iteration. This paper shows that, for solving traffic assignment problems, using TWO search directions alternately may sometimes have very distinct advantages.</style></abstract></record></records></xml>