![]() ![]() Contract Changes and Time ExtensionsĬPM Time Analysis on Contract Changes: The effect that changes or delays have on a CPM schedule is determined by a comparison of the schedules before and after the delaying activities are incorporated into the CPM Network. Once mutual resolution of the issues and/or disagreements is reached, both parties sign the Look-Ahead Report and the appropriate distribution is then made. Actual start and finish/completion dates should be reported for each activity during the monthly updates as appropriate. Also, the Look-Ahead Report should be marked up by the contractor and given to the resident engineer at least three work days prior to the progress update meeting so that it can be reviewed and verified. The CPM progress update shall be done monthly on a date mutually agreed upon by the contractor and the VA senior resident engineer. The payments for work performed can be made after satisfactory compliance with the CPM submissions is obtained. ![]() After the VA review and approval, these submittals become the approved project schedule. The contractor is required to provide two (2) CPM submissions per the NAS section(s) of the specifications: (1) proposal for a CPM consultant and (2) complete final (day-1) network diagram. Submission, Review and Approval of the Contractor’s CPM Diagram The accuracy of the CPM schedule in obtaining this goal is dependent upon good network diagram logic and sequence. For a contractor, the major benefit of using CPM on a construction project is that the job can be built on paper to determine the shortest, most effective and profitable approach. Project length is one of the most important cost considerations on any construction project. The network diagram is utilized to describe as a standard activity-on-node network of events and is generally developed using the technique set forth in the current AGC publication CPM in Construction - A Manual for General Contractors.
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