@conference { , title = {Investigating spatial and temporal undesired boundary effects arising from congestion charging.}, conference = {DTA 2012; 4th International Symposium on Dynamic Traffic Assignment}, note = {Conference dates: 4-6 June 2012 School: trans\_res}, organization = {Marthas Vinyard, USA}, publicationstatus = {Unpublished}, url = {http://researchrepository.napier.ac.uk/id/eprint/5711}, keyword = {388 Transportation; ground transportation, HE Transportation and Communications, Transport policy, Transport Research Innovation Centre, AI and Technologies, Congestion charging, spatial boundary;}, year = {2012}, author = {Ge, Ying-En and Stewart, Kathryn} }