%0 Journal Article %@ 0308-518X %A Leonardi, G. %D 1981 %F iiasa:13709 %I SAGE Publications %J Environment and Planning A %N 8 %P 1001-1028 %R 10.1068/a131001 %T A unifying framework for public facility location problems - part 1: a critical overview and some unsolved problems. %U https://pure.iiasa.ac.at/id/eprint/13709/ %V 13 %X A condensed report of the present state of the work in the Public Facility Location Task. Suggestions are also given on how to introduce multiple services and multiple time periods in location problems. The multiactivity dynamic location models that this perspective generates is the subject of future research in the Public Facility Location Task.