Some recent contributions to routing and location problems

s of the presentations, can be found at the following site: http://webpages.ull.es/users/saderyl/Coral.htm. The SADERYL project is based on a global understanding of the logistics chain and its requirements for an efficient management. The decision problems arising in the integrated management of the logistics chain can be classified as strategic, tactical, and operational problems. Within the SADERYL project, we have focused mainly on the strategic and tactical aspects, concerning routing, location, and combined location-routing problems. All these problems are of great economic interest and the use of combinatorial optimization-based packages for their management has proved to produce substantial savings. However, a much deeper understanding of these problems is needed to improve the quantitative tools that should be provided to the managers as a basis for making their decisions. Through CORAL 2003, we have tried to contribute to this objective with some papers giving more theoretical insights, modeling approaches, and heuristic and exact algorithms for these