Time Slice In Window Analysis (Hybrid Delay Analysis)

Introduction

This article explores a hybrid form of delay analysis, namely the time slice window analysis ('TSA'), to arrive at an assessment of excusable delay ('ED') and excusable compensable delay¹ ('ECD'). The TSA combines two separate method implementation protocols ('MIP') that are described in AACE 29R-03 in a single delay analysis.

Delay analysis methods are generally classified into two types: prospective or retrospective. The TSA takes advantage of both, combining a forward-looking approach (prospective) and backward-looking approach (retrospective). Using the two methods together allows the analyst to model the likely impact of any event within a chosen period or window and thereafter, measure the actual impact based on the progress recorded during that period or window.