Construction delay analysis techniques pdf

Construction Delays, Third Edition, provides the latest specialized tools and techniques needed to avoid delays on construction projects. These include institutional, industrial, commercial, hi-rise, power and water, transportation and marine construction projects. Most other references provide only post facto construction delay analysis. This update includes 18 chapters, sections and approximately new pages relative to the second edition.

He writes and speaks nationally and internationally on construction claim topics. William A. Manginelli has extensive experience in project management, scheduling, construction change analysis, and surety completion on many types of projects including institutional, industrial, commercial, hi-rise, power and water, transportation, and marine construction.

His expertise lies in the areas of construction management and the analysis of construction impacts, including delays, inefficiency, acceleration, and damages.

Scott Lowe, P. He has evaluated problems and offered solutions on almost every type of project including transportation, water and wastewater treatment, power, process and manufacturing, medical, educational, commercial, correctional, hotels, condominiums, residential, and athletic facilities.

He has worked on projects large and small throughout the US and internationally. We are always looking for ways to improve customer experience on Elsevier.

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View on ScienceDirect. Paperback ISBN: Imprint: Butterworth-Heinemann. Published Date: 22nd September Page Count: For regional delivery times, please check When will I receive my book? Sorry, this product is currently out of stock. Flexible - Read on multiple operating systems and devices. Easily read eBooks on smart phones, computers, or any eBook readers, including Kindle.

Institutional Subscription. Free Shipping Free global shipping No minimum order. Features greatly expanded discussion of the project management concerns related to construction delays, including a more comprehensive discussion of the development and review of the project schedule Offers a detailed analysis of the strengths and weaknesses of the most common construction delay approaches and how they should be properly deployed or avoided Includes significant discussion of the contract provisions governing scheduling, the measurement of delays and payments for delay Includes numerous real world case studies.

Project Scheduling 2. Float and the Critical Path 3. Schedule Reviews 4. Types of Construction Delays 5. Delay Analysis Using No Schedules 9. Home Office Overhead Other Categories of Delay Damages Article was nice, It reminds me to remember things I know, but tend to forget during my busy day! Primavera Course Primavera Course. I am really happy with your blog because your article is very unique and powerful for new reader. Click here: selenium training in chennai selenium training in bangalore selenium training in Pune selenium training in pune Selenium Online Training.

Time Impact Analysis is very important. Do you know your hidden name meaning? Click here to find your hidden name meaning. I want to share with you all here on how I get my loan from Mr Benjamin who help me with loan ofIf you had financial problems, then it is time for you to smile.

You only need to contact Mr. I just benefited for the sixth time a loan of thousand dollars for a period of months with the possibility of paying before the expiration date. Mr Benjamin has be helping me with loan. Make contact with him and you will see that he is a very honest man with a good heart. Delay is one of most common problems in construction projects resulting in construction disputes and claims. Basically delay is the time overrun either beyond the completion date specified in the contract or beyond the agreed-upon date for delivery of the project.

Most large projects are completed later than these agreed-upon dates for a number of reasons. These delays can have severe financial impact on the project. Reputations are at stake as well. When disputes erupt, delay claims may be filed, unless compromises are reached. To recover the damage caused by delays, both the delays and the parties responsible for them should be identified.

However, delay situations are complex in nature because multiple delays can occur concurrently and can be caused by more than one party, or by none of the principal parties force majeure, etc. As a result contract schedule and payment dispute are becoming two most common items of dispute during the construction phase.

What is Delay Analysis? Delay Analysis is an investigation usually forensic into what has caused the project to run late and who is responsible for the delay events. Delay analysis is performed in three steps:. Investigation Phase evidence collection. Description Phase analysis of facts collected during phase one.

construction delay analysis techniques pdf

Presentation of the case to an arbitrator or jury to prove the claim. Most of these delay claims reach the expert after completion of the project. The analysis of the delay impact with the causes and effects of the delaying activities is one of the most complicated types of claims analysis. It requires an expert with extensive knowledge of construction projects, means and methods, scheduling and the ability to develop a sound methodology to conduct the analysis.

This results in interviews with the parties, a detailed intensive review and research of the documents to verify schedules, events, sequence of work, changes during construction and the delay impact.

Organizational Chart. This article will address these challenges and the various delay analysis methods. Common Causes of Delays in Construction Projects. Below is a list of common delay causes encountered on construction projects. One of the complications of a delay analysis is that the delays can be caused by few of these listed causes or by concurrent causes or a complex mix of these causes running concurrently or in sequence.Please use the form below to find the content you are looking for, use the filter tools to search by content type.

Next Course runs April 27 to May 11, Plan Academy. Search Search Plan Academy. Register For The Course. This course will introduce you to the concepts, processes and techniques that are key to understanding the root causes of project schedule delays. Not only that, Dr. I believe that wherever you are in your career, learning and growing your knowledge is a must to keep adding value to your projects and their outcomes.

It just takes patience, dedication, and the right amount of focused learning, starting with principles first. Join me and Dr. What You Will Learn Real-world skills to analyze real-world construction project schedules.

Learn 4 essential forensic techniques for analyzing project delays. Construction law — learn legal concept that apply to construction delay claims.

Develop fragnets that represent delays and learn to insert them into your schedule to complete a delay analysis.

Construction Delay Analysis Windows Snapshot Time Slice

Get insights on common pitfalls to avoid while analyzing your construction schedule. Learn the difference between each technical forensic analysis technique. Discover the common causes of delay on project and learn how to plan to avoid them. Forensic Schedule Delay Analysis Course Outline The course is spread over 2 weeks, with each lesson focusing on a forensic analysis technique. Each lesson also builds on the last one and helps to you see the big picture.

Students complete perform a forensic analysis on our case study project and present their solutions live to the class. Time converter at worldtimebuddy. Your Instructor Meet Dr.

construction delay analysis techniques pdf

Jesus de la Garza, Ph. ASCE, F. He has co-authored ninety-two 92 papers in refereed publications. Who Is This Course For?Please use the form below to find the content you are looking for, use the filter tools to search by content type.

There are various ways to perform a delay analysis on a CPM schedule. The Impacted As-Planned method is one of the most straightforward analysis techniques. We will start with the As-Planned schedule ; this is typically your last approved baseline or the project schedule as it was planned to be executed. The Impacted As-Planned technique is called an additive technique because you will be adding delays to the As-Planned schedule to determine the impacts of those delays.

This type of analysis is often done after-the-fact, after the project is completed to determine how delays affected the outcome of the project. In the video, Dr. There are a number of analysis methodologies that be used in a forensic delay analysis. However, in my opinion, the Impacted As-Planned method is simple to understand and it does provide a good starting point for schedulers who are interested in growing their knowledge of Forensic Delay Analysis.

It also provides a good basis for learning other more sophisticated methods such as Time-Impact Analysis. Michael has taught s professionals how to use project controls software like Primavera P6 over the past 10 years through his online courses and tutorials.

Michael, I like the new live webinar that you have coming out on project delays. However, I have started a Drone engineering operation for Civil Contractors.

I am having to study a lot. Hopefully, you will record this and I can see it later. There is a fifth step also in above stated analysis 5 this is for one delay and second entry of delay event is now to be entered in this updated schedule and so on. Thanks Liaqat — you are correct on this addition.

construction delay analysis techniques pdf

Very grateful for readers who scrutinize and help us get it right! Thanks for yr response. Though I am not usefully familiar with cpa software,I feel impacted as planned is straight forward for delay analysis. Your email address will not be published.

This site uses Akismet to reduce spam. Learn how your comment data is processed. Plan Academy. Search Search Plan Academy. Why do you add delays to the As-Planned? Think of it this way. When to perform an As-Planned Analysis Before the project starts, if you wish to predict or forecast the effects of potential delays on the schedule.Construction Delay Analysis Methods. Delay is one of most common problems in construction projects resulting in construction disputes and claims. Basically delay is the time overrun either beyond the completion date specified in the contract or beyond the agreed-upon date for delivery of the project.

Most large projects are completed later than these agreed-upon dates for a number of reasons. These delays can have severe financial impact on the project. Reputations are at stake as well. When disputes erupt, delay claims may be filed, unless compromises are reached. To recover the damage caused by delays, both the delays and the parties responsible for them should be identified.

However, delay situations are complex in nature because multiple delays can occur concurrently and can be caused by more than one party, or by none of the principal parties force majeure, etc. As a result contract schedule and payment dispute are becoming two most common items of dispute during the construction phase. What is Delay Analysis? Delay Analysis is an investigation usually forensic into what has caused the project to run late and who is responsible for the delay events.

Delay analysis is performed in three steps:. Investigation Phase evidence collection. Description Phase analysis of facts collected during phase one. Presentation of the case to an arbitrator or jury to prove the claim. Most of these delay claims reach the expert after completion of the project. The analysis of the delay impact with the causes and effects of the delaying activities is one of the most complicated types of claims analysis.

It requires an expert with extensive knowledge of construction projects, means and methods, scheduling and the ability to develop a sound methodology to conduct the analysis. This results in interviews with the parties, a detailed intensive review and research of the documents to verify schedules, events, sequence of work, changes during construction and the delay impact.

Organizational Chart. This article will address these challenges and the various delay analysis methods. Common Causes of Delays in Construction Projects. Below is a list of common delay causes encountered on construction projects.To browse Academia.

Delay Analysis Techniques for Construction Projects

Skip to main content. Log In Sign Up. Nuhu Braimah. Philip Ko. Cavit Baydin. Piumi Hiranga. Buildings3, ; doi Over the years, existing delay analysis techniques DATs for aiding this decision-making have been helpful but have not succeeded in curbing the high incidence of disputes associated with delay claims resolutions.

A major source of the disputes lies with the limitations and capabilities of the techniques in their practical use. Developing a good knowledge of these aspects of the techniques is of paramount importance in understanding the real problematic issues involved and their improvement needs. This paper seeks to develop such knowledge and understanding as part of a wider research work via: an evaluation of the most common DATs based on a case study, a review of the key relevant issues often not addressed by the techniques, and the necessary improvements needs.

The evaluation confirmed that the various techniques yield different analysis results for the same delay claims scenario, mainly due to their unique application procedures. The issues that are often ignored in the analysis but would also affect delay analysis results are: functionality of the programming software employed for the analysis, resource loading and levelling requirements, resolving concurrent delays, and delay-pacing strategy.

Improvement needs by way of incorporating these issues in the analysis and focusing on them in future research work are the key recommendations of the study. Introduction The duration of contract performance has a direct effect on the profitability of construction projects from the perspective of all stakeholders [1,2].

For project owners, lost profits or benefits stem from being unable to make use of the project at the agreed date whilst to the contractor, extra cost will be incurred due to prolonged stay on site. Contractual provisions also allow the owner to recover liquidated damages from the contractor for failure to deliver the project within the contract performance period.

Liquidated damages clauses entitle the owner to recovery of a specified sum of money for each day or week of culpable delay. In both instances, a detailed schedule analysis is required to investigate the events that have actually caused the project to overrun. However, in the vast majority of cases, the parties are not able to settle delay claims amicably resulting in costly disputes after project completion [3—5].

Consequently, delay claims are now a major source of conflict in the construction industry and also one of the most difficult to resolve [6—8]. In spite of the many contributions, proper analysis of delay claims which take into consideration the effect of a number of scheduling and delay issues is often lacking in practice [8,14,17]. Therefore, the need for greater awareness and incorporation of these issues in delay analysis is crucial to ensuring fairness and amicable resolution of delay claims.

As part of a wider study aimed at addressing these issues, the purpose of this paper is to: discuss the most common existing DATs, as well as review the issues that are often missed in the analysis, and the required improvement needs. The various DATs have varying capabilities in providing sound answers to these questions. A Case Study Project To critically evaluate the existing techniques, a simple case study has been designed and simulated with various delay scenarios. The case study project involves the construction of a small garage with the necessary approach drive-in, as shown in the network diagram of Figure 1, adopted from Pilcher [25].

Figure 1. Arrow diagram of the case-study project. The as-planned programme of this project in bar chart format for clarity is as shown in Figure 2, indicating a total project duration of 40 days.

Construction Delays

The as-planned critical path, indicated in red bars, flows through activities of the garage structure, with a 5-day float on the path of drive-in activities. Buildings3 Figure 2. As-planned schedule.Any construction project schedule is a sequence of a number of activities having a fixed duration.

Time overrun is very important for project success. EOT claim requires the involvement of different departments. When it becomes fairly evident that there is, or is likely to be, a delay that might merit an EOT time extensiona formal letter is presented to the contract administrator requesting the extension of time, setting out the reasons and referring to the contract clause allowing the application.

The contractor should record all events and issues that cause, appear to cause or have the potential to cause delay, including:. A- Impressionistic. B- Simplistic. C- Prospective analysis. D- Retrospective analysis. Work schedule preparation including a narrative outline within 15 days of the notice to continue. First,3 months rolling schedule to be submitted within 30 days of the notice to proceed.

Submission of a detailed version of the proposed initial work schedule within the employer consent. Submission of the baseline schedule after consulting with other interfacing contractors if any, against which actual progress of the contract shall be reckoned. Proper updating of the program. If the updated schedule indicates an actual or potential delay in the contract completion date or key dates, identify a cause of delays. Divide between fault and delay of the contractor due to the owner, contractor interface and delays of force majeure.

Prepare evidence for the delay. Updating the baseline schedule on granting of an extension of time by the competent authority. How to prepare a claim for an extension of time When it becomes fairly evident that there is, or is likely to be, a delay that might merit an EOT time extensiona formal letter is presented to the contract administrator requesting the extension of time, setting out the reasons and referring to the contract clause allowing the application.

Below is a brief on the preparation of an EOT claim preparation: The contractor should record all events and issues that cause, appear to cause or have the potential to cause delay, including: When the event occurred.

Reason for the event occurred.

construction delay analysis techniques pdf

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