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Cost Analysis of Civil Engineering Projects CEEC, Budapest, November 2010

Cost analyses for civil engineering. IntroductionBackground, concepts and definitionsSurvey of available data structuresResultsWay forward. . INFRASTRUCTURE = CIVIL ENGINEERING ?Anything that isn't a building. Objective.

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Cost Analysis of Civil Engineering Projects CEEC, Budapest, November 2010

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    1. Cost Analysis of Civil Engineering Projects CEEC, Budapest, November 2010 Presented by: Joe Martin, BCIS Executive Director

    2. Cost analyses for civil engineering Introduction Background, concepts and definitions Survey of available data structures Results Way forward

    3. INFRASTRUCTURE = CIVIL ENGINEERING ? Anything that isn’t a building

    4. Objective ‘To collate cost data on civil engineering schemes in a consistent format that can be used for benchmarking and future cost estimates’

    5. Cost Analysis of Civil Engineering Projects Background, concepts and definitions

    6. Cost analyses BCIS Standard Form of Cost Analysis ‘Purpose of elemental cost analysis is to provide data that allows comparisons to be made between the costs of achieving various building functions in a project with those of achieving equivalent functions in other projects.’

    7. Elements and cost planning Element – What it is that we want to design Work result – What it is that we want to build Therefore we need to use element costs to provide early cost advice before and as the design develops

    8. Element Element: A major physical part of a building that fulfils a specific function or functions irrespective of its design, specification or construction.’

    9. Why is there an standard form of analysis for building and not for civil engineering?

    10. Cost analyses ‘Building’ Process Industry Product – A building

    11. Cost analyses ‘Building’ Process Industry Product – a building ‘Civil engineering’ Process Industry Product – a ???

    12. A Building So what do we mean by a ‘building’

    13. A building

    14. A hospital is a building

    15. A house is a building

    16. Tour Montparnasse is a building

    17. My shed is a building

    18. A building A hospital is a building A house is a building is a building My shed is a building They all provide: structurally supported, enclosed, usable, floor space

    19. A building All buildings have a common function independent of their use. Object function – building ie structurally supported, enclosed, usable, floor space User function – hospital (ie healthcare)

    20. Element Element: A major physical part of a building that fulfils a specific function or functions irrespective of its design, specification or construction.’ It therefore is the ‘functional decomposition of the building that identifies the elements’

    22. Entities Structures with common object functions = Entities Therefore we are looking for Entities ie civil engineering structures with common ‘Object Functions’ as these will, hopefully, have common elements.

    23. ISO 12006.2 ISO 12006-2 Building construction –organisation of information about construction works – Framework for classification of information Entities: Independent material construction result of significant scale serving at least one user activity or function. The basic unit of the built environment, eg building, bridge, road, dam, tower, sewer, museum (?), sports field, sewage settlement tank

    24. Entity Definition Entity: ‘An independent construction of significant scale defined by its physical form/ basic function, e.g. pavements, pipelines, buildings.’ Based on Uniclass definition

    25. Projects We gather cost information from projects A project is a grouping of entities

    26. Project: Building and external works Building

    27. Project: Road and external works Building

    28. Project ISO 1206.2 ‘A Construction Entity is the basic unit of the built environment. It is recognisable as a physically independent construction even though a number of construction entities might be built as parts of a particular construction complex’

    29. Project ISO 12006.2 ‘Ancillary works such as access roads, landscaping, service connections, may be regarded as part of a construction entity’ ‘Conversely when ancillary works are of sufficient scale they may often be regarded as construction entities in their own right’

    30. Projects Each cost significant entity should be analysed separately. The minor cost entities shown as lump sums Eg Building – analysed into elements External works Surface treatment (pavements) Site enclosure (dividing structure) Drainage (pipes) External services (cables) Etc

    31. Presenting the costs of a project

    32. Entities To reiterate: We are looking for Entities ie civil engineering structures with common Object Functions as these will, hopefully, have common elements. Entities = structures with common object functions.

    33. Cost Analysis of Civil Engineering Projects Survey of civil engineering data structures

    34. Survey Web survey of RICS members worldwide (35 responses) Existing contacts US and Canada Existing data collected Web search

    35. Survey 47 data structures 30 cover civil engineering (one or more entity) Four main purposes Specification Classification Measurement and procurement Cost analysis Three basic types Work results Elements Mixed and ‘Parts’

    36. Survey Summary of classification survey.xls

    37. Entities Entity definitions.doc

    38. Cost Analysis of Civil Engineering Projects Elements

    39. Generic Elements ENTITY SUBSTRUCTURE Definition: to transfer the loads of and on the entity to the ground. ENTITY STRUCTURE Definition: to fulfil the functional requirement of the entity ENTITY COMPLETION Definition: items and systems required to make the entity fulfil its function and make it usable. Works not analysed as separate entities can be analysed into: EXTERNAL WORKS Definition: other entities require to complete the project FACILITATING WORKS Definition: other entities required to provide a site suitable for the construction of the project Non elemental costs should be analysed into: PRELIMINARIES MAIN CONTRACTORS OVERHEADS AND PROFIT CONTINGENCIES AND RISK CONTRACTORS DESIGN FEES

    40. Outline data structure CECA Cost data structure.xls

    41. Documentation Standard forms of elemental cost analysis for civil engineering Principles, instructions, definitions and common elements Outline data structure for entities and elements Standard Elements for Pavements and landscaping Standard Elements for Railways Standard Elements for Quays, jetties and piers Standard Elements for Masts and towers Standard Elements for Pipelines Form of analysis

    42. Master elements form.xls

    43. What next? Consultation With consultants on complete data structure (Focus groups, face the face and online) With Clients on specific entities (airports, railways, roads, water, harbours) Data collection Database development Online delivery development

    44. Cost Analysis of Civil Engineering Projects CEEC, Budapest, November 2010 Presented by: Joe Martin, BCIS Executive Director

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