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GIS in BIMAlasdair Hind
Annual Conference 2016(with summary notes)
Building Information Modelling
3.7 building information modelling (BIM)process of designing, constructing or operating a building or infrastructure asset using electronic object oriented information
PAS 1192-2
BIM is a process for creating, managing and using digital information – not a software tool.
GIS data is typically object oriented – a feature encapsulates geographic and attribute information in a single object.
Building lifecycle approach
Plan
Design
Build
Operate
Stage 0Strategy
Stage 1Brief
Stage 2Concept
Stage 3Definition
Stage 4Design
Stage 5Build & commission
Stage 6Handover & closeout
Stage 7Operation
& end of lifeBIM applies to the whole lifecycle and is intended to make each stage more efficient, but operation is by far the longest period.
Efficiency gains
we know that the largest prize for BIM lies in the Operational stages of the project life-cycle BIM Task Group FAQ
The major efficiencies are expected in the Operate stage of the lifecycle. Having the appropriate digital information is a key part of operating in a smart way – using technology.
Operation
SAP ArcGIS SharePoint
Main integrated IT Systems in Port Object Information system (POI)
The Port of Rotterdam is a great example of using ArcGIS as part of a digital information system to improve operational efficiency. You can here more here in this video from our 2015 Annual Conference: https://www.youtube.com/embed/juWqc6vXIco?list=PLiNEAh2_RnshlmtVPrVRn6x9eAdPTj0HZ
Data as an asset
Adopting BIM involves a cultural shift in which digital data is seen as another asset and is managed and maintained appropriately.
Employer’s Information Requirements
8) a schedule of any specific information to be either excluded or included from information models;11) a definition of any co-ordinate origin/system(3 dimensions) that the employer requires to be used to place graphical models, for example Ordnance Survey locators, geospatial and location with respect to an agreed origin;
a) information management:
PAS 1192-2
The end customer of the project is no longer purchasing just the physical assets, but also a set of data products. The customer needs to understand their data requirements enough to be able to specify what’s needed.
ArcGISAn Integrated Web GIS Platform
Desktop Web Device
Server Online Content and Services
Portal
Plan
Design
Build
Operate
A useful tool atall stages
Strategy GIS in BIM demo for a fictional urban redevelopment
Brief Site masterplan
Combining different information layers to understand the geographic context is a classic GIS use case, in this case applied to the development site. As well as the walk time isochrones, additional information on Listed Buildings and flood risk areas are being streamed via a web service.
Concept Overview Design
An interactive web map is a great way to present the concept design to stakeholders. Context information such as existing building use is easy to include.
Concept CityEngine 3D Design
CityEngine is a procedural modelling tool. Once a rule is defined it can be used to create a series of buildings with different characteristics. Changing the height of the building just needs an attribute change and the model gets regenerated.
Concept CityEngine reports
CityEngine can be configured to report on the characteristics of the concept model buildings, such as area and the number of components such as windows.
Analysis ArcGIS Pro
Bringing the CityEngine models into ArcGIS Pro allows analysis to be carried out on the concept design. This might include 3D analysis such as checking visibility from key vantage points.
Concept Engagement
ArcGIS can deliver interactive maps and 3D scenes via the web to support engagement.
It can also be used to facilitate feedback. GeoForm allows the feedback to be tagged to a specific location.
Design
Design tools work on a local grid and the geographical position of the design needs to be defined. Extracting the building footprints from designs and viewing them in ArcGIS allows their alignment to be checked.
Positional QA and engagement
Build Site operations
A large construction site has operational similarities with a finished facility. ArcGIS can be used to show the site plans in their geographic context. It can also be used to record and update key locations such as first aid stations and muster points.
Operation Facilities management
We started the session by talking about the proven role GIS can play in managing a site more efficiently.
