The use of enhanced positional weight method for constrained resources project scheduling

Scheduling of construction projects is normally performed with the critical path method (CPM). The popular CPM/PERT network techniques are based on th e assumption that sufficient resources will be available when needed to com plete all project activities on schedule. This unrealistic assumption can l ead to ineffective resource usage and project delays. For scheduling of the project activities with resource constraints, other algorithms have to be used. This technical note first outlines the suitability of ranked position al weight method (RPWM), a heuristic resource scheduling method, to constru ction project scheduling. It then focuses on a new heuristic technique, the enhanced positional weight method (EPWM), which is an improved version of the RPWM. Some interesting comparisons between the results given by Primave ra, Microsoft Project, RPWM, and EPWM are also presented.