The History of Lean Construction

Construction

 

In 2002, at a meeting at the Institute of Project Management in Seattle, Greg Howell presented a paper he wrote with Laurie Koskeler in which they compared the Last Planner System to a critical path method. Greg used this opportunity to demonstrate how the Last Planner system was a superior method for project planning and control.

The response from the audience was less enthusiastic. During Greg’s presentation, a member stood up and shouted, “You lie, you lie!” This sometimes happens when someone challenges inspired practices.

And that’s exactly what the Last Planner system does. It turns the whole idea of ​​planning into his head because it allows people in the field to plan detailed work. The method is based on an observation that it is not really for people and scheduling experts who have really better information to plan the best-known work.

Like many ideas, the last planning system evolved. As reported in the first post, it started in the 1980s with the concept of crew level planning called Glenn. That front-line supervisor, Last Planners, need to know who can get the job done, based on what the project schedule is, rather than planning their workweek, so they can get the job done more productively. This allows weekly work planning and daily work execution to run more smoothly. Soon, a weekly action plan approach was created.

Through this weekly work plan approach comes a complete measure of the percentage plan, which Glenn presented to the Northern California Construction Institute in a paper he wrote in 1994. For the week. Percent Plan Complete is complemented by a Pareto process that helps project teams learn to improve the reliability of their plans using diversity analysis. Feedback has been incorporated into The Last Planner system as a process to improve, and it is this feedback that allows teams to do groundbreaking work that results in greater productivity.

The other two stages of evolution were make-ready planning and phase planning. The make-ready process was first described in print in 1994 in an IGLC paper by Glenn and Greg entitled “Stackbilizing Workflow.” They’ve been working on a make-ready process since the 190s that a project could have the full results of a one-percent plan and still fall behind schedule. In this case, higher productivity exceeds the materials needed to move on to the next part of the project. Good preparation has helped to solve that problem with good preparation.

The phased plan was developed later in the 1990s. Glenn thinks the first example of a tension plan is from a project team workshop for a lean back group project, where Mike Daly of the Ninan Group suggested setting a back-to-back schedule on the wall. This workshop took place in 1998 or early 1999. Applicable to the field, it continued the notion that those responsible for the work had a role to play in creating a plan that they would understand and support. Plans at this stage are developed at a general level, more functional details are added as work is done and it becomes necessary to be informed.

Since Glenn’s doctoral thesis last planner system is constantly evolving with the contribution of many people. Glenn and Iris Tomlin from Project Production Systems Laboratory (P2SL) recently released the 2020 Current Process Benchmark for the final planning system for project planning and control. It is such that the system will not be fully completed, subject to ongoing continuous improvement.

The Last Planner system is based on the understanding that people need clear, productive conversations about their commitments in order to get things done, and that their requests need to be addressed so that they can fulfill those commitments. The Last Planner System is a framework for that conversation, so people understand requests and commitments. For many project teams, this is the basic lean construction practice they use, often with valuable benefits.

A study conducted by Dodge Data and Analytics found that projects using practice are more likely to end ahead of schedule and under budget. Among contractors using thinner construction methods, reported higher quality construction, reported higher customer satisfaction, %% reported higher productivity, and %% reported improved safety. These results have been repeated consistently.…

Deck Building

Top Deck Building Mistakes that You should Avoid

Deck Building

Are you planning to build a deck? This may be a great idea to increase your house’s value and give it the perfect space for you to enjoy yourself with your loved ones. However, the real issue starts when you plan its steps. An incorrect deck building may result in getting collapsed, thereby becoming fatal for the house’s inmates.

Hence, before beginning with the construction, consider the top mistakes that you may tend to make. This way, you will avoid any unnecessary mishap with the fasteners and fixing, materials, and other steps.

Common Mistakes of deck building that you must avoid

Here are the top mistakes that people generally make while building a deck. Read on to know more about them and avoid them easily.

  • No railings and open risers – Always remember that open spaces will invite accidents while building a deck. While open spaces between the stairs can easily make you slip and fall, the missing railing will make it difficult to balance while climbing the stairs. You may also fall off the deck.
  • Unsealed wood – It is important to seal the wood on your deck. Unsealed wood will impact your home remodeling project negatively, and it will show signs of deterioration within a year. Also, the wood will lose its beauty and tend to age faster. This is the reason why you need to seal the wood of the deck.
  • Improper joist hangers – A single type of fastener is not enough to support and enforce the deck. It has to be a combination of all the fasteners and joist hangers. So, always used properly engineered, installed, and sized joist hangers to create the deck efficiently.
  • Improper materials – You must use the right materials for the construction of your deck. The wood, fasteners, and fixings must be weather-resistant.
  • Improper Structural materials – It is essential to use the deck’s correct size to avoid running into sagging, collapsing, and warping.
  • Improper footings – The top wood of your deck must have a strong base in footings or baseboards. In the absence of such support, the deck would warp, sag or even collapse sooner.
  • Wrong fasteners and fixings – The right fasteners and fixings are required to attach the decks properly to your home to ensure the decks’ thorough safety. However, you need to have the minimum building code requirement to have a proper estimate.
  • Improper flashing – you need to have adequate water management to ensure a long-lasting and safe deck. This fasting will not only prevent erosion but also protect your home from getting soaked.
  • Forgetting your building permit – Once you obtain a building permit is when you can safely claim that your construction is safe too. You need to submit specifications and drawings to the local authority. The building inspectors will then ensure whether your construction meets the area’s building requirement and safety code.

These are some of the important elements that many homeowners tend to overlook or forget. However, these mistakes may look trivial yet may cause grave mistakes. So, it would be best if you avoided these common mistakes to build a safe deck.

 …