Construction Planning and Management
In the time-cost optimisation, using CPM method for network analysis, the crashing of the activities along the critical path is done starting with the activity having

Least cost slope
Highest cost slope
Shortest duration
Longest duration

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Construction Planning and Management
Mobilization advance up to 10% of the cost of work is given to a contractor

On commencement of work at site for payment of loan taken by him
For all activities required to start the work at site on finalization of the contract document
For the purchase of construction materials
For the payment of advances to labour and other staff

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