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Time Impact Analysis (TIA®)
Robert C. McCue, P.E., Consulting Engineertia-graphic
Stephen M. Rymal, P.E., Esq., Consulting Engineer
MDC Systems®
Critical Path Method (CPM) schedules and formalized methods of analyzing schedule impacts started to enter mainstream construction management practice in the early 1980’s. At that time, the industry recognized a need to accurately and scientifically measure schedule delays and conversely the affects of acceleration in real time during construction and also retrospectively after the work was completed. The ability to determine which party ultimately bore responsibility for schedule delays became the main focus on many projects as the assessment of liquidated damages or granting compensable time extensions became critically important to both owners and contractors. Just as the Rosetta Stone provided scholars with a means to translate Egyptian hieroglyphics into Greek text, Time Impact Analysis (TIA®) provides users with the means to translate Critical Path Method (CPM) activities into understandable schedule impacts.
Risk Management: Insuring Continuity of Supply
Over the last several years, supply management professionals have been spending a majority of their time in creating, implementing and managing Business Continuity Planning (BCP) for critical products, materials and services. BCP is a strategic management process that focuses on insuring continuity of supply. The main objective is to identify and minimize or eliminate business interruptions in the event of a catastrophic event or major incidents occurring within the supply chain that can lead to adverse consequences for your business. Ten to twenty years ago, supply disruptions were caused by major snow storms, truck breakdowns, labor strikes, fire or explosions, electrical outages, machine breakdowns or even a truck driver making an unscheduled social visit.
MDC Systems® Presented at ASHRAE, Baltimore Chapter, May 2013
E. Mitchell Swann, Consulting Engineer at MDC Systems®, presented at the ASHRAE Baltimore Chapter...
More Than Just Counting Rainy Days: Documenting Weather Delays
by Michelle N. Delehanty, PE, PMP
MDC Systems® Consultant
According to the farmer’s almanac, this upcoming winter is predicted to be more severe than last year, which already seems as if it were one for the record books. For many regions throughout the United States, that means a multitude of storms, extreme cold, and potential closings to schools, offices, and, most problematic, construction sites. These closings of construction projects can lead to schedule delays, change order requests, and ultimately claims. In order for a contractor to justify to the owner that there is indeed a weather-related construction delay, they must demonstrate four specific things: (1) that the delay is within the terms of the contract (2) that the activity delayed had a direct effect on the project end date (was on the critical path), (3) the weather event occurred in excess of the “normal” weather for the season, and (4) there is documentation of which specific activities were delayed on each weather occurrence.