Publicly Available Specifications (PAS) are fast-track standards, specifications, codes of practice or guidelines developed by sponsoring organisations to meet an immediate market need following guidelines set out by BSI (British Standards Institution). Within 2 years they are reviewed to assess whether they should be revised, withdrawn, or become formal British Standards or international standards.
PAS 1192-2:2013 (Publicly Available Specification) is the Specification for information management for the capital/delivery phase of construction projects using building information modelling. It is sponsored by the Construction Industry Council (CIC) and published by TheBritish Standards Institution (it is not a British Standard, but may be considered for further development as a British Standard in the future). It came into effect on 28 February 2013.
It was commissioned by CIC as part of its response to the UK Government Construction Strategy which stated that the '...Government will require fully collaborative 3D BIM (with all project and asset information, documentation and data being electronic) as a minimum by 2016'. This will represent a requirement for Level 2 BIM on centrally-procured public projects. Level 2 is a managed 3D environment with data attached, but created in separate discipline models.
PAS 1192-2 specifies the requirements for achieving building information modelling (BIM) Level 2. It builds on the existing code of practice for the collaborative production ofarchitectural, engineering and construction information, defined by BS 1192:2007 and is one of a number of documents published to support the adoption of level 2 BIM in theconstruction industry:
- CIC Scope of Services.
- Outline Scope of Services for the Role of Information Management.
- COBie (Construction Operations Building Information Exchange).
- CIC BIM Protocol.
- CIC Best Practice Guide for Professional Indemnity Insurance when using BIM.
PAS 1192-2 focuses specifically on project delivery. Its application begins with the statement of need and works through the stages of the information delivery cycle, culminating in an as-constructed asset information model (AIM). The approach taken is described as “beginning with the end in mind”, identifying the downstream uses of information at the outset, to ensure its re-use during the whole building life cycle. Throughout this process it advocates the adoption of collaborative practices and of lean construction techniques.
PAS 1192-2 specifies in detail the requirements for five stages of information delivery:
Procurement:
- Employers Information Requirements (EIR).
- BIM Execution Plan (BEP).
- Project Implementation Plan (PIP).
- Supplier BIM assessment form.
- Supplier information technology assessment form.
- Supplier resource assessment form.
- Supply chain capability summary form.
Post contract-award:
- Post contract award BIM Execution Plan.
- Master Information Delivery Plan (MIDP).
- Task Information Delivery Plan (TIDP).
Mobilisation
Production:
- Common Data Environment (CDE).
- File and layer naming conventions.
- Spatial co-ordination.
- Publication of information.
- Design for bespoke manufacture.
- Using assemblies and library information.
- Levels of model definition.
- Levels of model detail and model information.
- Classification.
Asset information model maintenance:
- Handover process between CAPEX and OPEX.
A partner document, PAS 1192-3 ‘Specification for information management for the operational phase of construction projects using building information modelling’ came into effect on 31 March 2014. It offers guidance on the use and maintenance of the asset information model during the life of the asset. See PAS 1192-3 for more information.
