Bengt is professor emeritus at the department of Technology and Society at LTH, Lund University. He has researched about public traffic since mid 1970s. His doctoral thesis was about public transport in urban and regional planning. Bengt was researcher at Nordic institute for urban and regional planning in Stockholm. After receiving his doctorate he worked as a consultant at VBB in Malmö and as lecturer at LTH, Lund University. Professor at LTH in 1974.