Range of Variables The Range of Variables explains the contexts within which the performance and knowledge requirements of this standard may be assessed. The scope of variables chosen in particular training and assessment requirements may depend on the work situations availabl |
What components are likely to be included in site plans and specifications? | Components may include site location, scale of plan, north symbol, name of project, legend, associated plan references, plant lists, details of special features, existing vegetation and structures, and services above and below ground. |
What other available plans may be referred to? | Other plans may include surveyors plans which may provide information on utility services, site levels, boundary lines, easements and rights of way, or engineers and architect plans that may show other proposed works. |
What equipment is likely to be used when setting out a site for construction works? | Equipment may include tapes, a compass, pegs, string lines, line marking equipment, a lump or mash hammer, ranging rods, arrows, plumb bobs, levelling equipment, and personal safety equipment such as a coloured vest, safety boots, sun hat and sun screen lotion. |
What could be considered an environmental impact in relation to proposed construction works? | Any construction works may impact on the environment in either a positive or negative manner. If it is drainage and irrigation, this may reduce excess water, nutrient and chemical flow into natural waterways. If the works involve excavation, then this may damage the soil structure and stability of the site. |
What OHS hazards may apply to setting out a site for construction works? | Hazards may include solar radiation, uneven surfaces, strings, tapes and measures that may be tripped over, sharp equipment and surrounding obstacles. |
How would existing site features be located from a site plan? | The location of features may include the use of baselines, offset measurements, angles and grids. |
What scale measurements are likely to be used on site plans? | Metric scales may include: 1 metre to 10 metres = 1:10, 1 metre to 20 metres = 1:20, 1 metre to 50 metres = 1:50, 1 metre to 100 metres = 1:100 and 1 metre to 200 metres = 1:200. |
What shape are proposed construction works likely to be on a site plan? | Proposed construction works are likely to be basic geometric shapes including straight lines, curved lines, circles, squares, triangles, rectangles and ellipses. |
How could the shape of the proposed construction works be marked out on site? | The shapes may be marked out or set out on the site by using paint from a spray can, lime, stringlines, pegs, stakes, rods and arrows. |
What are the likely reasons for taking levels when setting out a site for construction works? | The reasons for taking levels may be to determine height above sea level or a datum of drainage outlets, areas and volumes in cut and fill operations, any changes in slope or gradient of the land, contours of the land, to provide the means for safe and efficient construction of structures, to achieve falls for drainage of stormwater from pavements, falls in pipe work or for installing sumps and drains, and to help set out of step risers, treads, goings, nosings, landings and hand-rails to Australian Building Regulations. |
What levelling equipment is likely to be used to verify site levels? | Levelling equipment may include spirit levels, line bubbles, water levels, boning rods, dumpy levels, pegs, tilting levels, automatic levels, laser levels, plumb bobs, staves and tripods. |
For more information on contexts, environment and variables for training and assessment, refer to the Sector Booklet. |
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