Contents 1 The role of a contractor 2 Function 3 Seven types of construction 4 Obtaining the project 4.1 Bids 4.2 Selection methods 4.3 Payment contracts 5 Project stages 5.1 Feasibility and design 5.2 Pre-construction 5.3 Procurement 5.4 Construction 5.5 Owner occupancy 6 Issues resulting from construction 6.1 Dust and mud 6.2 Environmental protections 7 Construction activity documentation 8 Resolving disputes 9 Study and practice 10 Software 11 Required knowledge 12 Business model 12.1 Design, bid, build contracts 12.2 Design-build contracts 12.3 Planning and scheduling 12.4 Architecture–engineer 12.5 Agency CM 12.6 CM at-risk 12.6.1 Advantages 12.6.2 Drawbacks 12.6.3 Bottom line 12.7 Accelerated construction techniques 13 See also 14 References 15 Further reading The role of a contractor Contractors are assigned to a construction project during the design or once the design has been completed by a licensed architect or a licensed civil engineer. This is done by going through a bidding process with different contractors. The contractor is selected by using one of three common selection methods: low-bid selection, best-value selection, or qualifications-based selection. A construction manager should have the ability to handle public safety, time management, cost management, quality management, decision making, mathematics, working drawings, and human resources.[2] Function The functions of construction management typically include the following: Specifying project objectives and plans including delineation of scope, budgeting, scheduling, setting performance requirements, and selecting project participants. Maximizing the resource efficiency through procurement of labor, materials and equipment. Implementing various operations through proper coordination and control of planning, design, estimating, contracting and construction in the entire process.