Before construction begins, architects, engineers and designers can use software and analytics technology such as SketchUp PreDesign and Sephaira to create eco-friendly models, while also considering other aspects of the project’s environmental impact such as material, water, and energy needs. With advances in technology, users can explore dif- ferent concepts nimbly and with ease, without fully defined parameters, to make sustainable design decisions. Advances in building performance analysis tools are also allowing architects to better understand how building design concepts will use energy, even in the earliest phases of the construction lifecycle. By answering questions early on about heating and cooling loads, lighting, appliances and other energy demands of the completed project, owners can make more informed decisions about the long-term environmental impacts of their projects. Companies are finding that most construction waste can be reduced or eliminated by adopting a constructible process utilizing digital tools and data in building information models (BIM) at the outset of a proj- ect. With this approach, all phases and trades are connected, models and workflows are content-enabled, and data-rich constructible models drive smarter workflows. These models include construction-ready content that is easily accessible through open formats. A key part of this process is the constructible, data-rich 3D model that goes beyond simple geometry and contains accurate and intelligent information that can be used throughout the project lifecycle. File-sharing systems such as Trimble Connect and Quadri can ensure that everyone has the most recent set of plans and is working toward the same goals. By collaborating with all stakeholders, knowing what is expected and having the right equipment in place, there is less room for error. Reducing Rework Across The Construction Continuum The cost of rework in construction is high and can be measured in terms of project quality, price, scheduling and environmental impact. Rework can be the result of mistakes or poor construction, but it can also be caused by factors outside of the contractor’s control – such as clients just changing their mind about what they want. Technology can provide big benefits across multiple project phases when it comes to reducing rework and eliminating waste. First, extended real-
project’s overall return. The culprits are typically disconnected work- flows, inefficient processes and old ways of working that lead to waste or don’t allow project teams to compare material and design options early in the design phase to determine the most sustainable approach. One of the most common causes of construction waste arises from the “order more than we think we'll need" mindset. This is evident, for example, in planning concrete pours. In lieu of not ordering enough concrete, contractors purchase more material than they need to avoid jeopardizing timelines with material holdups. Another problem is rely- ing on inaccurate data to determine production quantities, which often results in excess material that can’t be reused and is simply discarded as the "cost of doing business." Additionally, when a single source of data isn’t available to all project parties so that everyone is working from the same, up to date information, errors are inevitable and lead to wasted time, materials, and resources. Sustainability Starts With Connected Construction The answer to increasing sustainability and lowering the construction industry’s carbon emissions, costs, and material waste lies in connected construction. However, in order to eliminate waste, boost productivity, and truly enable a connected team, changes must be applied across the entire construction continuum.
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