Innovations - PMA Consultants https://pmaconsultants.com/insights_category/innovations/ Providing innovative, construction-focused program and project management services Mon, 24 Jan 2022 19:41:43 +0000 en-US hourly 1 https://wordpress.org/?v=5.8.2 https://pmaconsultants.com/wp-content/uploads/2019/06/Screen-Shot-2019-03-21-at-11.05.57-AM.png Innovations - PMA Consultants https://pmaconsultants.com/insights_category/innovations/ 32 32 WATCH: Schedule Risk Assessment Early and Late “P80” Dates https://pmaconsultants.com/insights/watch-schedule-risk-assessment-early-and-late-p80-dates/ Sat, 26 Oct 2019 19:47:48 +0000 https://pmaconsultants.com/?post_type=insights_list&p=820 The CPM algorithm’s ability to develop bounding early/late dates using activity durations and logic was a new scheduling paradigm that has sustained CPM as the scheduling method of choice since 1957. However, in Monte Carlo probabilistic scheduling, CPM develops only the early completion distribution curve. This keynote will: 1) reveal how the GPM probabilistic scheduling

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The CPM algorithm’s ability to develop bounding early/late dates using activity durations and logic was a new scheduling paradigm that has sustained CPM as the scheduling method of choice since 1957. However, in Monte Carlo probabilistic scheduling, CPM develops only the early completion distribution curve.

This keynote will: 1) reveal how the GPM probabilistic scheduling algorithm, by allowing activities to float in every iteration, develops both the statistical early and late schedules, unveiling early/late bounding completion distribution envelopes from which practitioners can infer more realistic 80% confidence level completion aka P80 dates; and 2) question continued reliance on CPM risk assessment tools that promote optimistic P80 dates. The hoped-for outcome is a path toward more realistic schedule risk analysis results.

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Why Megaprojects Need BIM https://pmaconsultants.com/insights/why-megaprojects-need-bim/ Tue, 14 May 2019 01:41:24 +0000 https://pmaconsultants.com/?post_type=insights_list&p=1669 BIM is an integrated project controls tool BIM is an integrated project controls tool that helps the CM, Owner, and other key stakeholders understand scheduling, cost, and risk components by visually representing how projects get built and are going to look throughout each phase of their lifecycle. Mega construction projects have complex, multi-page schedules, including

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BIM is an integrated project controls tool

BIM is an integrated project controls tool that helps the CM, Owner, and other key stakeholders understand scheduling, cost, and risk components by visually representing how projects get built and are going to look throughout each phase of their lifecycle. Mega construction projects have complex, multi-page schedules, including Gantt chart graphics, which are difficult for anyone to follow using 2-D schedules. BIM lets you visualize the sequencing and conflicts, reducing errors and delays. BIM models can include site plans on schematic versions, laydown areas, excavation areas, tower cranes, crawler cranes, the movement of materials and equipment from location to location, and sharing the timing of equipment installations so owners know when areas are going to be accessible. Combining project controls elements with an understanding of constructability analysis is the extra layer of knowledge and experience added by this process.

BIM is a valuable long-term investment

Facility management is the ultimate end goal of combining software and an as-built model that becomes the model of record for the project. Entering the BIM process from early design limits risk and errors, engages the team from the beginning, minimizes re-work, and maximizes efficiency to deliver the project. The best practice for implementing BIM long-term is as follows: First, enter into the construction phase with the 60-90-100 design model and delegate contractors with the responsibility to update the model throughout the construction process lifecycle, including uploading and delivering work in place and as-built model drawings at the end of the project for facility management. Then, in an ideal world, this step leads to the 5D and 6D stages. The 5D stage is the cost-loaded aspect of the BIM model and, in the 6D stage, the BIM model is transitioned into an as-built, completed model for facility management. All systems and schematics requiring maintenance are recorded into software, such as Maximo, where the BIM model can be drilled down into the electrical systems, installed equipment, service life, etc. Ultimately, the BIM model will then provide a printout used to manage the building using this model or be displayed on an iPad to previsualize the schematics behind the wall.

BIM is cost effective

Implementing BIM on a megaproject is not as expensive as it is often perceived to be. The total cost is offset by potential savings derived from investing early in the assignment, avoiding rework, delays, and claims, and scaling it based on which point in the project it is brought in. BIM is typically not a huge overhead cost for an assignment and usually consists of approximately a few thousand dollars a year in software costs, personnel costs, and two or three work stations. A full BIM team could be set up for a total of about $50,000-$60,000, which is not a major footprint on a megaproject or a program of work.

PMA Consultants is a leader in using BIM for the construction of megaprojects. Since 2005, when we first implemented a value planning exercise with the Lower Manhattan Construction Command Center Project, we have provided BIM services on projects for the Port Authority PATH station rehab model, the Bayonne Bridge Navigational Clearance Project, and the Newark Airport Terminal Redevelopment project.

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Improving on the Predictive Accuracy of P80 Dates https://pmaconsultants.com/insights/improving-on-the-predictive-accuracy-of-p80-dates/ Thu, 10 Jan 2019 13:36:07 +0000 https://pmaconsultants.com/?post_type=insights_list&p=620 PMA leads a panel discussion on project risk management at the PMICOS Panel Fellows meeting. Third Annual PMCOS College of Fellows Meeting January 10-12, 2019 The Breakers, Palm Beach, Florida Panel: Improving on the Predictive Accuracy of P80 Dates Panelists: Gui Ponce de Leon, PE, PMP; Bruce Stephan, PE, PMP; Tarek Bahgat, PMP The CPM

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PMA leads a panel discussion on project risk management at the PMICOS Panel Fellows meeting.

Third Annual PMCOS College of Fellows Meeting

January 10-12, 2019
The Breakers, Palm Beach, Florida

Panel: Improving on the Predictive Accuracy of P80 Dates

Panelists: Gui Ponce de Leon, PE, PMP; Bruce Stephan, PE, PMP; Tarek Bahgat, PMP

The CPM algorithm’s ability to develop bounding early/late dates using activity durations and logic was a new scheduling paradigm that has sustained CPM as the scheduling method of choice since 1957. Regrettably, when used in Monte Carlo probabilistic scheduling, CPM develops only x,000 instances of the early schedule, and therefore only the early completion distribution curve.

This Panel has two objectives. First, to reveal how the GPM probabilistic scheduling algorithm, by allowing activities to float in every iteration, develops x,000 instances of both the statistical early and late schedules, unveiling early/late bounding completion distribution envelopes from which practitioners can infer more realistic 80% confidence level completion aka P80 dates.

Second, with this compelling finding, to ask fellow practitioners (who are keenly aware of the vagaries of risk schedule analysis) whether we should reconsider relying on CPM risk assessment tools that tend to promote optimistic P80 dates based only on the early completion distribution. The hoped-for outcome is a path forward toward more realistic schedule risk analysis results.

Gui Ponce de Leon, PhD, PE, PMP

Dr. Gui Ponce de Leon is one of our nation’s foremost planning and scheduling experts. His professional experience includes roles as investor’s developer, construction manager, program manager, and EPC contractor planner/scheduler. Dr. Gui has continually pioneered innovations in project management throughout his 45-year career. With GPM, he is on a quest to transform scheduling from a “black box” task performed by specialists to stakeholder-centric processes that promote collaboration, enhance stakeholder interaction, and inherently result in reliable schedules.

Bruce Stephan, PE, PMP

Bruce Stephan is a nationally recognized licensed civil engineer with more than 30 years of experience on complex medium, large, and mega engineering/construction projects. Mr. Stephan has held progressively responsible positions in the construction of water, transportation, and power infrastructure industries ever since. His distinguished career includes public service, general contracting, and consulting nationally and internationally. His award-winning experience includes design-build, integrated project, CM-GC, and CM at-risk delivery methods on public capital improvement programs.

Tarek Bahgat, PMP

Tarek Bahgat, a Project Controls Manager at APTIM, has extensive experience in construction management, project management and controls, risk management, value engineering, and cost estimating and controls. He has provided relevant services on transit, infrastructure, power plants, water/wastewater facilities, and large hotel construction programs.

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NetPoint Adds Schedule Reliability Functionality https://pmaconsultants.com/insights/netpoint-adds-schedule-reliability-functionality/ Wed, 22 Feb 2017 13:41:41 +0000 https://pmaconsultants.com/?post_type=insights_list&p=622 PMA Technologies releases NetPoint Version 5.2 PMA Technologies introduces NetPoint version 5.2, a single tool for planning, scheduling, and analyzing the risk and reliability of project schedules. New functionality in version 5.2 allows project planners and schedulers to develop and analyze schedules for a more reliable result. Version 5.2 includes a new module called Schedule

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PMA Technologies releases NetPoint Version 5.2

PMA Technologies introduces NetPoint version 5.2, a single tool for planning, scheduling, and analyzing the risk and reliability of project schedules. New functionality in version 5.2 allows project planners and schedulers to develop and analyze schedules for a more reliable result. Version 5.2 includes a new module called Schedule IQ™ that scores the reliability of your schedule based on compliance with PMA’s 20 Core Traits of a Reliable Schedule protocol and provides other metrics according to the DCMA 14-Point Assessment. The Schedule IQ™ Score helps project planners identify and repair the weakest parts of their schedules, resulting in more reliable overall scores.

Schedule IQ™ determines, for every weather profile, workday losses by month by accessing NOAA and randomly generates weather day calendars. It relies on powerful, nuanced weather algorithms to make it feasible for schedules to be credible predictors of progress and completion. As these processes are mastered, further innovation in weather management will fundamentally alter scheduling practice.
Dr. Gui Ponce de Leon, Founder and CEO of PMA, creator of the Graphical Path Method™

In addition to Schedule IQ™, version 5.2 includes other exciting new features. WBS customization allows you to organize activities into an easy-to-use hierarchy for summarizing data, laying out your schedule, and exporting to P6. Contract dates provides a new way to log changes to contract dates over time and see when a breach has occurred in the network. Resource importing saves time and effort when entering resources. You can use any Excel file to copy, paste, and enter resource names, categories, cost, colors, intensity, and patterns, and import them into your schedule. Fiscal Year Display adjusts the display of years and quarters to align with your organization’s calendar. Version 5.2 also includes keyboard shortcuts to change tools quickly and effortlessly using your keyboard, allowing you to keep your mouse on the canvas.

Since its commercial release in 2008, NetPoint has proven an invaluable tool to a variety of leaders in the project controls and construction industries. PMA Technologies continues to develop innovative ideas into practical solutions to inspire transparent, effective, and collaborative planning and scheduling.

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Obsoleting 60 Years of Scheduling Calculus, Introducing the Graphical Path Method (GPM) https://pmaconsultants.com/insights/obsoleting-60-years-of-scheduling-calculus/ Wed, 30 Dec 2015 21:53:33 +0000 https://pmaconsultants.com/?post_type=insights_list&p=2177 In May 2003, O’Brien, et al. could not see the logic in many CPM schedules. In the intervening years, a number of scheduling experts, including this author, have posited that the critical path method (CPM) is past its prime.

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In May 2003, O’Brien, et al. could not see the logic in many CPM schedules. In the intervening years, a number of scheduling experts, including this author, have posited that the critical path method (CPM) is past its prime. However, seemingly, nothing much has changed as mainstream scheduling practice continues to be hindered by overly detailed, flawed schedules that stakeholders cannot decipher―much less collaborate on―in the face of the Internet social revolution that cries out for more engaging, transparent, and “stakeholder-centric” processes. In this keynote, Dr. Gui presents to professionals in Peru the graphical path method introduced in 2008 in response to O’Brien’s plea for a return to scheduling fundamentals.

Dr. Gui Ponce de Leon, PE, PMP, LEED AP

Presented at 2015 AACE International event, Third Congress of Cost Engineering
October 24th, 2015
Lima, Peru

Download the Paper

What is CPM Scheduling?

A networking method that, following any input for any activity, logic tie, or milestone, requires a forward pass and a backward pass for the entire network as a preceding step to obtain an output of the schedule. Date constraints are required to schedule activities on planned dates. Neither total floats nor the as-built critical path can be calculated left of the data date.

What is GPM Scheduling?

The graphical path method (GPM) is similar to the critical path method (CPM) but embodies a simpler scheme of thought in ways CPM can’t. GPM is a graphical and visualization method that, without a forward or backward pass, kinetically refreshes the schedule where impacted as the user adds/deletes/revises/repositions activities, logic ties, and milestones. Activities on planned dates may float back (in GPM lexicon, have drift). Total floats and the as-built critical path are algorithmically calculated left of the data date.

GPM as Applied in Planning/Scheduling
  • Visualization is enabled by a new time-scaled logic diagramming method (LDM) that combines the strengths of arrow & precedence diagrams
  • Activities may be on planned dates without resorting to date constraints or preferential lags
  • An activity on GPM planned dates can drift back (to the early start date) and may float forward (to the late finish date)
  • The kinetic interface is enabled by GPM self-healing and scheduling algorithms, which─as a planner is physically manipulating activities─restore the impacted aspects of the network to their correct mathematical state
  • Both forward (push) planning and backward (pull) planning are enabled
  • In every schedule update, total floats left of the data date are calculated, which allows algorithmic identification of the then-existing as-built critical path

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GPM® and Forensic Total Float https://pmaconsultants.com/insights/gpm-and-forensic-total-float/ Wed, 21 Apr 2010 22:00:54 +0000 https://pmaconsultants.com/?post_type=insights_list&p=2178 The critical path method (CPM) is widely used as a project management tool. Basic to CPM is for the planner to draw a project network first, and then to use CPM software to calculate activity dates and total floats, establish the project completion date and locate the critical path. Alas, all is not well in CPM utopia!

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The critical path method (CPM) is widely used as a project management tool. Basic to CPM is for the planner to draw a project network first, and then to use CPM software to calculate activity dates and total floats, establish the project completion date and locate the critical path. Alas, all is not well in CPM utopia! The moment the planner takes control of activity dates by using constraint dates or resource leveling, total float is reduced (some would say sequestered); and once actual dates are introduced in a CPM network, the analyst loses total floats and the critical path can no longer be calculated left of the data date. The ability to schedule an activity later than its early dates without sacrificing total float, and to determine total floats and the critical path for the as-built portion of a schedule (left of the data date), is solved by the graphical path method (GPM®). This paper describes the float aspects of GPM, while emphasizing the concept of GPM forensic total float and its role in retrospective schedule analysis, whether in updating or forensic scheduling. A compendium of CPM and GPM float concepts is provided for historical context.

Dr. Gui Ponce de Leon, PE, PMP

Presented at PMICOS Annual Conference 2010

Download the Paper

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