A decision support system for locating facilities and routing traffic on a factory site

In this note we deal with a practical problem arising at ENCI Netherlands BV. ENCI is a major producer of cement. Its factory site is located south of Maastricht where an important ingredient of cement, marl, is digged from a quarry. The following situation occurs at the site of ENCI. There are different kinds of traffic on the site and the vehicles of each kind of traffic follow a fixed route on the site. The current set of routes is not satisfactory for ENCI. Indeed, some facilities and roads become congested on a daily basis. In order to solve this problem a decision support system called RACE is developed.