Samenvatting
Citrac - centrally integrated traffic control (hyslop,a); status of freeway monitoring systems in the united states (dunn,wm and mcdermott,jm); freeway traffic management on highway 401, toronto, canada (harmelink,md, case,er and mclean,kg); mcss the dutch motorway control and signalling system (klijnhout,jj); loran (long range navigation) vehicle monitoring system: a feasibility study (saxena,kk). for the covering abstract of the conference see IRRD 275170.