Life cycle costing (LCC) as a contribution to sustainable construction ...
Life cycle costing (LCC) as a contribution to sustainable construction ...
Life cycle costing (LCC) as a contribution to sustainable construction ...
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Towards a common European methodology for <strong>Life</strong> Cycle Costing (<strong>LCC</strong>) – Guidance Document<br />
58<br />
Results (continued)<br />
The <strong>LCC</strong>-criteria should be related<br />
more thoroughly <strong>to</strong> other<br />
requirements and specifications in<br />
the contract <strong>to</strong> avoid negative<br />
unforeseen effects. Expansion<br />
joints give a good example that<br />
illustrates the unforeseen effects of<br />
conflicting requirements, <strong>as</strong> they<br />
can make up 20 <strong>to</strong> 30% of<br />
maintenance costs for viaducts.<br />
Conclusions and benefits<br />
<strong>Life</strong> <strong>cycle</strong> costs were incorporated <strong>as</strong> a criterion for determining the<br />
(economically) most profitable bid in the tender of functionally specified<br />
contracts. By considering life <strong>cycle</strong> costs in a tender process, contrac<strong>to</strong>rs<br />
were encouraged <strong>to</strong> design, develop and offer solutions that are profitable<br />
and beneficial on a longer term. This is not only in the interest of the<br />
procurer but also offers contrac<strong>to</strong>rs a better opportunity <strong>to</strong> distinguish<br />
themselves in terms of quality and service. In addition, parties may gain from<br />
design optimisation for maintenance.<br />
The <strong>LCC</strong>-tender for A4 Burgerveen - Leiden w<strong>as</strong> successful in a sense that<br />
the expected maintenance costs where reduced considerably, without having<br />
a considerable effect on the <strong>construction</strong> cost. Contrac<strong>to</strong>rs were given the<br />
opportunity <strong>to</strong> distinguish themselves by offering a balanced life <strong>cycle</strong><br />
design and development of innovations that imply savings on life <strong>cycle</strong> cost.<br />
Contact details<br />
Jaap Bakker<br />
Civil Engineering Division, Ministry of Transport Public Works<br />
& Water Management<br />
Utrecht, The Netherlands<br />
E-mail: jaap.bakker@rws.nl<br />
Davis Langdon Management Consulting May 2007