The productivity of A, spread across each of the work areas, is 2 weeks per floor. Pro tip: Use a bit of the L’Oréal Paris Advanced Hairstyle LOCK IT Clean Style Gel to control the ends of your choppy layers. I.E we will start from when the waterproofing work should finish and make backward calculation. For polling, the API would return to the application after reading/writing each piece with the The project timeline is represented along the x-axis of the LOB diagram. Now we can schedule the backfilling team/equipment to follow the waterproofing. The main advantages of LOB schedule are its graphical presentation, easy understanding of the schedule and the goals of planning used in it. The lob is a useful shot that aims to push the ball high and deep into the opponent’s court. In this scenario, I will wait one month after executing the columns for the R.C footings crew to finish their work. Tag:construction projects, linar projects, Line of Balance, Line of Balance (LOB), Line of Balance (LOB) method in construction projects, Line of Balance Excel Tool, LOB excel template, planning using line of balance, The application of Line of Balance. However, I wanted to start my investigation using my favorite planning tool Microsoft Excel. I’ve foiled many an opponent with it. Line of balance (LOB) is a management control process used in construction where the project contains blocks of repetitive work activities, such as roads, pipelines, tunnels, railways and high-rise buildings. I was always asking myself, why line of balance method is not widely used in construction projects? Bien souvent, SharePoint sert de point d’accès central unique pour l’ensemble du contenu et des services liés à un secteur d’activité. The Line of Balance (LOB) Scheduling Technique was originated by the Goodyear Company in the early 1940's and was developed by the U.S. Navy … So now we know each unit when the PC under footings should start and when it should finish. Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. The CRFS approach is to use all three of these techniques, depending on your application. BLOB can be used wherever a java.sql.Blob is expected and an oracle.sql.CLOB can be used wherever a java.sql.Clob is expected. Line of balance (LOB) is a management control process used in construction where the project contains blocks of repetitive work activities, such as roads, pipelines, tunnels, railways and high-rise buildings. See the figure below: I wish my example with clear and useful for you. So, we can reach an agreement with our subcontractor (If applicable) to work in patches. #10: CHOPPY LONG BOB HAIRSTYLE. Underfloor air conditioning comes to 24 St James's Square. Also, do not forget to make the dates clear by moving dates that overlap each other’s, then you can print this schedule in A0 size and explain to your team how easy and effective the line of balance is. Consultation on public right to buy unused public property. An LOB diagram shows the repetitive project work as a single line on a graph. Microsoft Power BI is the future of business intelligence (BI). 12/12/2018; 4 minutes de lecture; V; Dans cet article Résumé Summary. We have 10 similar buildings, and we want to create the schedule using line of balance method. This is one of the main benefits of the Line of Balance Method, in this case we will start our calculation from the top. And they work for almost everyone in varying degrees, and when repeated long enough, the work for everyone. You can find out about our cookies and how to disable cookies in our Privacy Policy. In that case, from where we should schedule? A lob in tennis involves hitting the ball high and deep into the opponent's court. In 2016, he established his own company in Egypt “Planning Engineer Est.” Hany gained his MSc degree in project management from Liverpool University-UK 2013-2016, PMP certified from PMI-USA 2010, and BSc Civil Engineer Tanta University-Egypt 2003. According to my understanding, LOB is a very simple method, it converts the dates into lines, you need to maintain these lines not crossed and near to each others as you can. My choice: is a mixture between option 1 and option 2. LOB collects, measures and presents information relating to time, cost and completion, and presents it against a specific plan. there are many techniques like CPM method , life cycle cost calculation, estimation, LOB. However, after 16-Nov-17, the duration should be reduced to 10 days only for 1 unit. See the figure below to know how it will look like. The lob is most effective when the opponent is at the net, leaving the baseline open. Accordingly, the information we have are, 1-The First Slab on grade (S.O.G) can start on 27-May-17, 2- The Last Slab on grade can start on 15-Sep-17. Broadcast your events with reliable, high-quality live streaming. The benefits of glowing aggregates and cement. Turn on suggestions. There’s probably nobody better to learn the lob then from me. Let us think together, what if I can find the R.C columns slope which will make the columns finish just on time, increase the duration of the columns with the same percentage I decrease the PC concrete productivity to end up with the PC footings team finish the footings and start the R.C columns immediately (without impacting the RC footings team)? The pitching wedge is used to get you out of trouble, sink the shot to win the hole, or set you up for the winning putt within a couple of feet of the hole. Surprisingly, the fresh engineers explained this method to me and I found it is very simple. The intent is to place the ball deep in their court and out of their reach. In the event that there is still a problem or error with copyrighted material, the break of the copyright is unintentional and noncommercial and the material will be removed immediately upon presented proof. This can be done by using polling method or a callback function.Here data is read/written in multiple pieces sequentially for the array of locators. Technique LOB acronym meaning defined here. Hany Ismael is the founder and CEO of Planning Engineer Est. This is great, but not practical, it doesn’t make any sense to wait 109 days (between first unit RC completion and first unit waterproofing start). A lob wedge is a golf wedge that has a loft between 58-64 degrees. 1 shows forms of LOB scheduling technique plot, where activities are represented as boxes, whose width is the activity duration at this unit. We will draw the Plain concrete works under footings, each building will take 10 days to be completed, so it is a straight forward process. In our case, the waterproofing should finish after the last unit of the RC foundation finish + waterproofing duration = 7-Sep-17 + 3 days = 10-Sep-17. For example, Unit No. 7 should start in 31-May-17 and should finish 9-Jun-17. The research conducted by the authors aims to improve the LOB concepts on building construction and … The line-of-balance technique (LOB) for planning and scheduling repetitive projects such as houses, high-rise buildings, precast concrete production, etc., has been used since the 1950s. 3. Hany provided more than 3,500 hours of planning and project management training on his website, YouTube channel, and offline courses since 2011. The work areas that define the project are represented along the y-axis. Special excel tools to facilitate the planning and scheduling process for planning engineers. LOB collects, measures and presents information relating to time, cost and completion, and presents it against a specific plan. LOB collects, measures and presents information relating to time, cost and completion, and presents it against a specific plan.”. So, we will make the duration for unit 12 days, draw the line and see how it looks like. He has started his career back in 2003 as a site engineer, technical office engineer, planning engineer, planning manager, and finally planning department manager where he has been involved in several mega construction projects in Egypt and Saudi Arabia. According to esigning Buildings Wiki (2017), “Line of balance (LOB) is a management control process used in construction where the project contains blocks of repetitive work activities, such as roads, pipelines, tunnels, railways and high-rise buildings. Instead of working through the complexities of direct mail, you can now access commercial grade printing & mailing infrastructure on-demand via a simple RESTful API. The waterproofing subcontractor can visit the site three times in 20-May-17, 4-July-17, and 30-Aug-17. So we need to start the S.O.G in unit 7 on 6-Sep-17 instead of 13-August-17 and recalculate all other units dates accordingly. The horizontal red dashed lines represent the breaks in Activity B work, where the workforce is waiting for Activity A to clear the way for them to continue. Now we have the Slab on Grade perfectly aligned with our overall schedule. This advanced planning Package contains all the required knowledge to boost your career from junior planning engineer, site engineer with little planning and scheduling skills,... Data Management is the key success of construction projects reporting. Even if you are not going to use a subcontractor, and you have several projects among your company, you can schedule your teams like this. Rising concern over construction worker wellbeing. In that case, we need to find the best crew size to fit this situation and estimate the optimum duration for the slab on grade activity. The integrated CPM/LOB method developed by Ammar is used in this paper. So I need the R.C columns last unit start around 28-October-17 and first start after PC completion date. IHBC resource offers improved consistency. Enforcer will test and investigate product safety. Being able to effectively use a lob wedge can save a lot of shots around the green, especially when faced with a short-sided up and down or a difficult buried lie, but the hardest part of an open-faced lob wedge shot is repeatability. Screen Recorder . Similarly, I can re-use the same crew of the R.C footings to execute the R.C slabs. Download : Download full-size image; Figure 1. Ok, now we want to start the foundation waterproofing, and let us assume that a subcontractor will come to do it for us, but in the subcontractor contract, the unit will take only 3 days to finish and if the work is not available, the subcontractor will claim idle time. So, we can start immediately after the first unit waterproofing completion. Guidance offered on COVID-19 green recovery, building safety and more. This is the starting point for the LOB schedule: In the figure below, it can be seen that Activity A lasts a 10 weeks. So, I am going to increase the PC footings duration by 2 days which gives me start date of the R.C Columns on 30-July-2017 and Perfect Finish date. So, the question here, when the subcontractor should start to maintain continuous work without stoppage? Line of balance technique can use to calculate completion time of the given project for both the methods. in Egypt. It can be used as a defensive shot or when executed correctly, a great offensive shot as well. The lob in tennis is a high shot aimed over your opponent. What is Line of Balance (LOB) Planning Technique? In this case, the left side of the boxes represent the start times of the activities at sequential units, where the right sides represent the finish times. The LOB technique was created by the Goodyear Company in the early 1940s, before being adopted and developed by the U.S. Navy in the early-1950s. This cut and style involve edgy, chopped layers that make for a perfectly structured lob. However, starting from 16-Nov-17 the R.C columns crew will join the R.C slabs crew to finish faster, can we do this scenario? The seventh byte is set to the space character if there is not enough room in the SQLDA to contain the description of all result columns or output parameter markers. Not only is this braiding technique easy to master, but it’s also ideal for those looking to add a bit of edge and intricacy to their look. The LOB technique is very suitable for repetitive projects like residential buildings, however it may be adapted for non-repetitive projects as well. Accordingly, I decided not to proceed and study further about this planning technique. Furthermore, I saw few graphs of the scheduling using Line of Balance and the first impression was it looks complicated. As you can see, we have two intersections between S.O.G and Backfilling in units 4 and 7. The implementation of control is necessary to not allow any misuse of resources and means. Since I am using excel template which calculate the dates based on simple formulas, changing any date will not be a problem because all the relevant dates will be changed automatically. Then, I start thinking and researching how we can use this simple method in our complicated projects? Let us start with this example. Lob is a see also of lop. However, during one of my training sessions with new engineers, we discussed the line of balance method, and I asked them to explain it to me as they understand. There are some software like TILOS which deal with LOB method similarly to Oracle Primavera which deals with Critical Path Method (CPM). Ammar used overlapping activities of a single unit to determine precedence relationships and duration of repetitive activities. LOB is used on repetitive work such as constructing multiple dwelling units, when used on linear work such as roads and railways the technique is more accurately called Time/Location Charts or Chainage Charts which include ‘blocks’ to mark out chainages such as bridges and culverts that require substantial time to build and interrupt the general flow of work. One common use of the lob is to surprise your opponent while they are up at the net. Copyright ©2012- 2020 | All materials, unless otherwise noted, were developed originally for Planning Engineer Website. i.e 23-May-2017. Another use is on very wide shots to allow yourself enough time to get back into position. They are psychological mind control techniques to help build new beliefs and overwrite old unbeliefs. Reading Internal Persistent LOBs and External LOBs (BFILEs) with Java. As you can see, the perfect start timing (LOB) for the waterproofing sub-contractor is 12-Aug-17, this will ensure the work continuity and will finish just after the last unit foundation. More importantly, it’s a super-low maintenance style. It was subsequently developed for industrial manufacturing and production control, as well as the basic concepts behind planning and scheduling in the construction industry. The output of the three methods can be overlaid onto maps to increase the probability of locating the source of any given signal. Providing strength and support above the joists. The CPM/LOB method merges the benefits of CPM and LOB techniques to schedule LRPs in a non-graphical way. The “lob” or long bob is the hottest trend hitting runways, magazines, and the streets this year. Let us say, 3 units, 3 units, and 4 units. Get the Firefox add-on to access 20,000 definitions direct from any website, Share your construction industry knowledge, Programme for building design and construction,, Comparing a formal objective against actual, Examining the extent of any deviations from specific, Allowing a clearer understanding of the amount of, Resources can be optimised for a large number of repeated, It is relatively easy to modify, update and change the.