TransportationNovember 1972, Volume 1, Issue 3, pp 343–355 | Cite asReviewsAuthorsAuthors and affiliationsAdnrew W. EvansSherrill SwanMartin G. RichardsDavid YoungK. Rask OvergaardTerence BendixsonArticle 26 Downloads This is a preview of subscription content, log in to check access.PreviewUnable to display preview. Download preview PDF.Unable to display preview. Download preview PDF.Copyright information© Elsevier Publishing Company 1972Authors and AffiliationsAdnrew W. Evans1Sherrill Swan2Martin G. Richards3David Young4K. Rask Overgaard5Terence Bendixson61.LondonUK2.University of CaliforniaLos AngelesUSA3.DeventerThe Netherlands4.WinchesterUK5.CopenhagenDenmark6.ParisFrance