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(CDR-1683) Untangling Concurrent Delay on Pipeline Projects

Primary Author: Ms. Greta A. Martin PE PSP and Mr. Jeffery L. Ottesen PE CFCC PSP

Audience Focus: Intermediate
Application Type: Application
Venue: 2014 AACE International Annual Meeting, New Orleans, LA, USA

Abstract: Construction projects for pipelines, utilities and highways typically follow linear-sequenced work plans. Such projects literally begin at a point “A” and end at a point “B”. In CPM terms, there may be only a single critical path, or a single string of planned activities that define the entire scope of work. Such schedules seem simple in principle and design, and because of this simplicity, contractors and owners frequently spend less time developing the schedule and simply ‘dive into’ the construction work. If preparing such a schedule is so simple, why then do so many linear projects experience delay and pose contractors difficulty in proving cause and effect? This paper considers concepts of delay concurrency, distinguishes between literal concurrency and functional concurrency, and presents issues schedulers, experts and triers of fact should consider when confronting concurrency on linear projects.