THE NEW DEVELOPMENT TREND OF OPERATIONAL RESEARCH IN CIVIL ENGINEERING AND SUSTAINABLE DEVELOPMENT AS A RESULT OF COLLABORATION BETWEEN GERMAN-LITHUANIAN-POLISH SCIENTIFIC TRIANGLE

In this article the scientific cooperation between the three academic centres from Germany, Lithuania and Poland, represented by Prof. F. Peldschus (Leipzig University of Applied Sciences), Prof. E. K. Zavadskas (Vilnius Gediminas Technical University), and Prof. O. Kapliaiski (Poznan University of Technology), is presented. Formal meetings have been called Colloquia, and were organized every two years in different academic centres. The research achievements and activities during the period of 2007-2009 are presented. The main research fields of OR in Civil Engineering and Sustainable Development of three academic centres are surveyed. As a result of productive collaboration in the period between the 11th and 12th Colloquiums, several postdoctoral theses and doctoral dissertations were defended, research papers and books were published and conferences were organized with published proceedings, etc. On the basis of these achievements EURO Working Group OR in Sustainable Development and Civil Engineering (EWG-ORSDCE) was established.