Samenvatting
The conference papers of the two-day conference on traffic engineering held in Driebergen-Rijsenburg, The Netherlands, on May 13-14, 1981 are presented in three parts. Part I consists page 1-288, part II consists p 289-641 and part III consists page 641-957. For the abstracts of papers presented at the conference see B 18652 - B 18704 (IRRD abstracts nos 255835 to 255886.)