What is a linear project process?

A linear project is one that proceeds regularly and consistently through each of the project phases and stages, avoiding loops back in response to external factors, or to accommodate variations to the scope of work or the project plan.

There are many potential causes of a non-linear project process, some may be deliberate and desirable while some may become necessary due to factors beyond the awareness, or control of the project team. Typically, non-linear processes are used to overcome difficulties with cost, approvals, unforeseen site conditions, or changing preferences. While each construction project is unique and it wouldn’t generally be realistic to expect a 100% linear process without any adjustments whatsoever, the closer you can get to a purely linear process the more likely you are to minimise overall cost, reduce overall timeframe, and maximise design and construction quality.