This handbook describes and documents the measurement system employed by the Educational Facilities Laboratory Project at Duke University for gauging the level of space-demanding activities. It offers detailed information regarding procedures for assessing space-demanding activity levels. The first part deals with procedures which have been developed for collection of data regarding space-demanding activities and for preparing these data for analysis. The second part describes preliminary steps in analysis and some of the techniques used. Sample forms are included in the appendices. (FS)