Types of Drawings

Planning Drawing

These include survey maps and diagrams and town scape drawings.

Survey maps and diagrams

Survey maps and diagrams generally show existing topography, buildings, communication lines and other features of the site. This is mainly prepared by surveyors.

Town scape Drawings

These are mainly prepared by planners (urban and regional, town and country planners) for the design and development studies. These drawings are mostly prepared from survey maps. They can be made in a variety of techniques according to the subject or scene to be depicted and the purpose of the illustration.

 The scales are often small and minor slips can be serious. Therefore, the draftsmanship must be precise.

Measured Drawings

They are scale drawings drawn out from carefully taken measurement of existing buildings or structures. Such buildings or structures could be of historical interest, architectural merit or alterations, addition (renovations) are being proposed.

Steps

Diagrammatic sketches of the buildings are first made and necessary measurement marked on them. Scale drawings are later made out from this.

*Accuracy is VERY, VERY essential.

*Orientation and well-arranged descriptive notes are also very essential.

Landscape Drawings

Landscaping includes all works in connection with the outdoor environment from conservation and management of regional areas to the layout and planting of small spaces between buildings.

A landscape plan therefore shows types and location of vegetation for an area. These are related to the contour (topography) of the land and the position of the building.

In a landscaping working drawing therefore, types and location of all trees, shrubs, flowers, hedges, ground cover and proposed changes in the existing contour of the land to enhance the appearance and function of the site are indicated.

These drawings are prepared by the landscape architect.

*The landscaping working drawings may be less exact, but reasonable accuracy is important when setting them out from maps or surveys.

Specialist Engineering Drawing

These include structural, electrical and mechanical (plumbing and air-conditioning). Engineering drawings are prepared by specialist engineers in the relevant fields. They are mainly prepared from architects working drawings.

In the case of very small projects, they are often combined in the architects working drawing. In large projects however, due to the complexity of construction, multiplicity of lines and lettering, confusion and errors are avoided by preparing them separately to enable professional information to be quickly and clearly conveyed.