Planning and control activities to achieve construction period objectives
Scheduling is the core link of the overall project implementation process in the field of management. Its goal is consistent with the duration goal, covering the whole process of plan formulation, implementation monitoring and dynamic adjustmentIn engineering project management, the schedule measures progress by establishing quantitative indicators (such as duration, physical quantity, etc.), and develops hierarchical plans according to different cycle types such as long-term, medium-term, short-term, etc.Bar chart and network chart are commonly used as visual tools. The former visually displays task timing, while the latter optimizes process flow through logical relationship.In order to ensure the implementation of the plan, it is necessary to use the forward line method to monitor the deviation, and to achieve progress correction in combination with the methods of expediting or adjusting the logical relationship of the process[1]。
The project progress reflects the actual progress of the project implementation, while the construction period refers to the total duration of the project from commencement to delivery[1]The two indicators form a quantitative relationship through duration, resource consumption and other indicators, and the schedule needs to be dynamically measured and adjusted based on the duration target.
Schedule classification
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It can be divided into:
one
Long term plan: Strategic arrangement covering the whole life cycle of the project
two
Medium term plan: Decomposed into control nodes in specific implementation stage
three
Short term plan: List of operational tasks detailed to week/day
According to the content dimension, it can be divided into survey and design plan, construction bidding plan, etc;According to the scope level, it includes the general schedule and the single project plan[1]。
Visualizer
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one
Bar chart (Gantt chart): Visual display of task start and end time and parallel relationship through horizontal timeline, suitable for simple project progress expression
two
network diagram: Use nodes and arrows to represent the logical relationship of tasks, identify the critical path and optimize the duration, which is suitable for complex project management[1]
Dynamic control method
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Progress deviation inspection is mainly realized by bar chart comparison method, front line method and other technologies, in which the front line method judges the deviation degree by drawing the included angle between the progress baseline and the actual progress line[1]Adjustment strategies include:
Increase resource input and reduce critical path duration (rush)
Adjust the logical relationship between operations to optimize the total duration
Reassign non critical path floating time resources
