1. Rayan
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  3. Wednesday, 01 February 2017
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Working for a consulting firm has introduced me to many hot topic technologies, and key words/lingo. One of which is BIM, or building information modelling. It is definitely a popular topic among architects, structural and civil engineers that praise its utility, as well as software developers and architects that are data-savvy. There is definite talk about developing GIS workflows to support BIM project deliverables.

What it the case for BIM in GIS and where do we currently stand? How is BIM slated to improve GIS workflow, quality of deliverables, etc. Since when did GIS analysis become concerned with the "inside of buildings". Traditionally speaking, autocad/microstation technicians were left to design the interiors, and GIS was used for those exterior applications (zoning, land use managements), macro in retrospect.
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Carles Gimenez Accepted Answer Pending Moderation
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Regarding your concerns about BIM applied to GIS:

Context: The current needs of our society

Civil engineering and infrastructure are the logistical base, production and mobility of our modern society . The level of modernization and efficiency of a company is proportional to the degree of development of their infrastructures. Global spending on infrastructure has grown to 5.5 trillion annually by 2016 . And it will grow to 9 trillion annually until 2025 (Dodge Analytics).

Furthermore, most of the 31 Latin American countries will increase their investments in infrastructure by 250% to meet the needs of its growing population (CG / LA Infrastructure for Data model 2018). In addition, it is predicted that the profession of civil engineering form must grow by 8% between 2016 and 2024 worldwide (US Bureau of Labor Statistics).


Global commitment to the implementation of BIM


Governments around the world are increasingly recognizing the efficiencies that can be obtained with the implementation and use of BIM , and there are many countries where the use of BIM is already a mandatory requirement.

In Spain itself, by the end of 2018 it will be adopted for public building projects and in 2019 for its infrastructure projects .

In Chile in 2020 it will be mandatory for all public and private projects, also in Peru for 2022 BIM will be mandatory for public projects. In Mexico in late 2017, have passed their standards.

More information herehere.

Due the needs of becoming a BIM Manager in the infrastructure field, a few programsprograms emerged with the aim to provide the sector the tools needed to deliver new projects.
  1. 6 days ago
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Carles Gimenez Accepted Answer Pending Moderation
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There's a lot of information regarding BIM applied to infrastructure projects:

On the road of modernization for increased productivity that has begun in the construction sector, scanning from the early stages of planning an infrastructure it is undoubtedly a key and fundamental aspect. It is essential to take advantage and manage information from GIS (GIS-Geographic Information Systems Information) that the various public bodies in many states have been working and evolving over the past decade.

The information used in this initial planning stage evolves at different stages so that in the design part a are obtained virtual models to be constructible, then they serve as the future database for a much more efficient maintenance active. The rest of the article herehere.
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Matthew Accepted Answer Pending Moderation
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I personally think that BIM is a convergence of multiple technologies, and I am yet to be convinced that it will take off.

I presume you know what it is, but my understainding is that it is a fusion of architectural drawings, CAD, GIS and asset management systems. They talk about 5D models, i.e., 3 spatial, 1 temporal and 1 cost.

GIS has 2.5 dimensions, usually. But could have 3. (I.e., we could have points, lines and polygons that have 3D coordinates and that overlap each other.) BIM brings along the fine detail that CAD building plans have, and joins in with GIS attributes.

To answer your questions:

How can GIS be leveraged to represent the physical and functional characteristics of a facility?
it can represent the 3D physical characteristics of a building with 3D CAD/Architectural models. The functional is represented with pipes, wiring, equipment etc. being incorporated. (Think Sketchup, but with numbers.)
How can GIS be used to control building project and data life-cycle information?
By knowing what the building looks like now (in the form of a BIM model), and ensuring that all proposed and actual changes are supplied in BIM format, an up-to-date, and actually proposed or future, model of a building can be visualised and costed etc.
How can a GIS-based approach to BIM offer better decision-making value?
I guess that BIM must be GIS, in that the model should have proper schema and domains, so that attributes are handled in a standard manner between all people working on the project.

I'm not a BIM proponent, so I can't really comment on how it will/is/should be used, but, while it sounds like a great thing, getting people to actually use it (i.e., contractors, and even architects) is apparently a hard thing to do. A friend worked on making a bespoke model, then the architects wanted flat plans to work with! So information was destroyed, in practice!
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