I have a schedule that the contractor submitted with 1,000 activities. Said schedule has approximately 40% of the activities with Total Float greater than 100 days. All of those activities have Free Float of zero. To make this even more fun, there is only one activity on the critical path when using TF less than 1 and 50 activities when choosing Longest Path.
My question is: What is the significance of Free Float and should it be evaluated as a better understanding of the project critical path or project longest path?