There can be one main impact that causes or spawns other impacts and can undergo a root cause analysis. To have a cumulative impact it requires more than one and most often many main impacts that ripple over ripples by other impacts.
Once you experience a rippling impact or many such impacts it becomes crucial that your daily documentation by all becomes excellent and without fail.
Now is also the time to setup impact cost accounts and do you very best to segregate in-scope and impact-caused expenses.
Also known as Cumulative Impact. Defined by BusinssDictionary.com s "Indirect effect that spreads out from the direct or main effect to reach areas or population far removed from its intended or original purpose or target. Read more: http://www.businessdictionary.com/definition/ripple-effect.html#ixzz3j7Teoc8w.
On a busy and high-density construction site often one or several major changes will ripple and spawn a number of subsequent impacts. Often the impacts become so many and in such rapid fire that all you can see is the cumulative effect. You are unable to separate separate cause-and-effect chains.
James G. Zack, Jr.
Navigant Construction Forum,
Navigant Consulting, Inc.