Construction Management is both an art and a science, and is something that is usually quite hard to do. It is hard because one has to look at a broad range of variables, and try and guess what effect each variable will have on a construction project. For example, a construction manager in the middle of a project will have to take into account the following:
- the weather,
- the availability of construction workers who may be sick or may not feel like showing up for work,
- the fact that some materials are out of stock just when they are needed,
- the availability or non-availability of key equipment like cranes,
- changes made to the existing design by architects and clients the previous evening,
- juggling the work of 20 or more different trades at the same time,
- surprising discoveries of electrical cables below the ground that no-one knew about,
- inspections by government authorities,
It it is the inter-relationships between all these variables and the effect they will have on the project that creates complexity in project management. Compounding these problems is the team from the owners of the buildings, who often sit in glass towers far from the construction site, have little understanding of the difficulties in building construction, and demand that the project be finished before time.
It is these difficulties that make it both extremely challenging, as well as extremely rewarding if done right.Construction management is best done by people with a detailed knowledge of building construction, such as civil engineers or architects. However some aspects of this work, such as financial planning or procurement, can be done by people who do not have a construction background.
Construction management can be performed by different agencies in a project. It can be done by the contractors working on the project, by the owners of the project, by independent consultants hired by the owners, by the designers of the project, or by the investors in a project. It is important to note that each agency may have differring aims and motivations in a project. For example, a contractor may want to increase the costs of the building, and an owner may want to decrease it. Independent consultants may wish to delay the project, as they are paid a monthly fee to monitor it.
The main aspects of construction management are:
- construction scheduling
- quality control
- contract management
- procurement management
- construction finance management
Construction programming is completed at 2 totally different times. First, it's done once the plans ar prepared, however before the work starts at the positioning, so as to figure out a timeline and calculate construction prices for the project.Secondly, it's done throughout the execution of the project, once the particular schedule could disagree from the planned schedule thanks to delays, weather, or any range of reasons. during this case it can even be known as project watching.
Construction programming demands a data of what resources ar needed to provide a given outcome. as an example, to complete a concrete block mensuration five,000 ft2 in space, a contractor could require:
- 2,500 cuboidal feet of concrete
- 8,000 ft2 of formwork (the mould within which the liquid concrete is poured)
- 10 men
- concrete pumps
- 4 days
- Often, the time taken to end employment depends on the resources offered to the contractor.R