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7/27/2019 cien-166-1-009.pdf
1/19
Civil Engineeringvolume 166 Issue CE1 February 2013
ttp://dx.doi.org/10.1680/cien.2013.166.1.9
Using building information modellingon a highway projectSibert
ICE Publising: All rigts resered
For further information contact: Ben Sibert Tel: +44 29 2047 3727 Email: [email protected] Web: www.a465brynmawr2tredegar.co.uk
Using building information modellingon a highway project
BRIEFING:INNOvATION
Building information modelling (BIM) is to be implemented on all UK government construction projects
by 2016 to help cut costs. Ben Sibert of Arup explains how BIM is being used on a section of the A465
highway dualling in south Wales and the lessons being learned on the way.
Te Wels goernments 150 million A465
Brynmawr to Tredegar project inolesdualling 78 km of te eads of te alleysroad in sout Wales. Work started onsite at te end of 2012 and te project is
due for completion by 2015. ContractorCarillion, engineering consultancy Arupand enironment consultancy TACP are
deeloping teir approac to buildinginformation modelling (BIM) on te projectto elp cut costs.
Te BIM plan coered work stages,model elements, file system and designreiew. For work stages, te Royal
Institute of Britis Arcitects (RIBA) stages
were adopted. Model elements wereplanned across te Specification for
higway Works eadings, and te filesystem is Bentleys Projectwise. 4Projectsis used as te static data store for
completed design data.
Improed understanding
During work stage D design
deelopment te project team
deeloped a complete model of all of te
aboe-ground features. It was deelopedinto a drie-troug ideo, wic elpedcommunicate wit te public during tedraft orders stage.
Te ideo added real alue for te clientbecause it communicated te scemeclearly and sowed people exactly wat
tey could expect in a way two-dimensionaldrawings could not. Only tree objectionsto te draft orders remained at te public
inquiry in Marc 2012.At te end of 2012, te team ad
completed its stage E design tecnical
design. Te wole of te igway and
all its features were ten assembled intoa reiew enironment using Autodesks
Naisworks, resoling conflicts to stageF production information wit acoordinated design.
Bot te client and contractorbenefited from being able to detectproblems in a tree-dimensional
enironment before construction started.
Issues and lessons
Certainly, te project teams ability and
willingness to take on new tings asbeen important to BIMs success on tissceme so far.
An important callenge for softwareproiders as been to facilitate inter-compatibility and flexibility of coice.
Eac discipline uses a different softwarepackage and different reiew platformsae different merits. It is adisable to
retain flexibility on te coice of softwareas firm decisions now may exclude
partners of te future.
Wit regard to programme, projectteams sould also consider allocatingmore time to stage E in adance ofstage F. Furter suggestions include
supplementing te original RIBA workstage plan wit Te American Instituteof Arcitects leel of deelopment
requirements to proide a better interfacewit te wider market.
Object-based modelling sould also
be increased. Eac part of te constructionis modelled as an object wit embeddedmaterials and property information. Tese
attributes can be taken forward into
different reiew platforms to aid witconstruction planning and ultimately wit
asset management.
Conclusions so far
Te A465 Brynmawr to Tredegar
project as demonstrated tat BIM canproide a structured approac to designdata storage and saring for design
teams, constructors and operators. It asimproed coordination and olistic designfor multidisciplinary teams, and been
elpful in communicating constructionsequences and programme.
howeer, it is important to get te
best out of different software packagesand not to restrict ariety. Differentplatforms ae different merits and
proide flexibility for collaboration witdifferent partners. Te design alsoneeds to be modelled at object leelto aid construction planning and asset
management.
A complete building information model of te
A465 dualling sceme in sout Wales as sofar significantly facilitated planning, designcoordination and construction planning
Bot te client and contractor benefited from beingable to detect problems in a tree-dimensionalenironment before construction started