Civil Engineering Reference
In-Depth Information
types of structure were to be built in a temporary or permanent environ-
ment, such as at the Eton Manor facility, where there was a requirement
for the close management of interface with the London Organising Com-
mittee for the Olympic Games (LOCOG), which was responsible for the
Olympic overlay or temporary facilities.
Finally, the NEC3 Term Service Contract was used where there was
a requirement to maintain completed assets through to the completion
of the deconstruction period. Certain aspects of this form of contract
were included within the main venues, where the contractor retained
an obligation to provide a facilities management service. The term
'service contract' allowed the use of key performance indicators to
ensure service levels were delivered. At the same time the NEC3 Term
Service Contract was fl exible enough to allow procurement of additional
capital works, if required.
Classifi cation of contracts
The contract classifi cation structure was designed to identify each
of the main types of contract to be applied, depending on circumstances.
The structure set out a standard solution for each situation, based on
the amount of information available to bidders in terms of design and
scope, and taking into account the level of risk and the factors of time,
quality and cost. Figure 4.7 shows the level of risk on the horizontal
axis and the degree of clarity of the expected output, referred to as the
defi nition fi xity of the works, on the vertical axis. Where the risk is seen
as high and the expected outcome possibly variable, then the appropriate
contract category is given as Class A. The main purpose of classifying
contracts in this way is to pass on the appropriate level of risk to the
most appropriate and best-placed organisation to manage it.
Because of the number of different contracts used in the London 2012
Games, they were classifi ed according to the type of work. Six classifi ca-
tions were used, ranging from Class A to Class F, and each classifi cation
was aligned with one or more of the packaging clusters, as follows:
• Class A contracts for permanent structures and associated works;
• Class B contracts for temporary structures and facilities;
• Class C contracts for civil-engineering works;
• Class D contracts for enabling an landscaping works;
• Class E contracts for utilities work, and
• Class F contracts for direct supply of goods and material.
