On Thursday, we started learning about construction planning and scheduling. The presentation, given my Mr. Bassam Haddad, covered cost vs. time relationships, bar charts (used for smaller projects), and network diagrams (used for more complex projects). AON, which means activity-on-node, is the most common type of network diagram because it is easy to create. It includes the days on which each activity starts and finished, as well as the duration of each activity. In addition, this diagram allows us to find the critical path, or the path with zero total float. Total float is the amount of time any given activity can be delayed without affecting the completion date of the project.
We also learned about Project General Documents (PGDs). These documents are created before construction starts and they are important because it includes lists of site layouts, organizational charts, schedules, budget information, labor, subcontractors, etc. The actual PGD is never altered, but parts of it (schedule and budget) may change for progress reports and site booklets. Site booklets are used by the management team to monitor the progress of the construction site. After this lecture, we feel more prepared to understand scheduling on construction sites that we will visit.
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