AHCARB512 — Generate tree plans using computer-aided design software

Elements & performance criteria

Performance evidence

• An individual demonstrating competency must satisfy all of the elements and performance criteria in this unit.
• There must be evidence that the individual has produced plans using computer-aided design software and calculated and plotted tree protection zones (TPZ) for at least 20 trees and 10 encroachments across two different sites.
• There must also be evidence that the individual has:
• confirmed project requirements for drawings
• identified drawing requirements, purpose and scope, and confirmed with client
• prepared computer-aided design (CAD) software ready for drawing, including:
• prepared the computer desktop user interface
• determined the layering strategy for components
• identified and selected component libraries
• selected text and dimension styles according to workplace style guide
• selected line types and weights
• selected hatch patterns and types
• set up title blocks for drawing sizes
• set up reference schedules
• used two-dimensional (2D) CAD software program and functions to produce drawings using layers for different components. The tree protection CAD plan must contain:
• TPZ
• structural root zone (SRZ)
• encroachments
• imported digital text and drawing files from other software applications
• scanned and saved documents in digital format for import into 2D CAD drawings
• reviewed, edited and deleted incongruous elements
• recorded notes to drawings
• identified and applied dimensioning and scale to drawings
• identified and applied tree symbols with precision. Drawing must provide the following differentiations:
• trees to be retained
• trees to be removed
• trees to be transplanted
• calculated areas of TPZ, SRZ and encroachments
• checked the drawing for accuracy and quality
• set page layout on printer, including:
• scale
• line weights
• set print parameters for the printer, including:
• page size and paper quality
• output print quality (fast, draft, best)
• created file storage directories according to workplace file management procedures
• named and saved drawing files to file directories according to workplace file management procedures and naming convention
• created drawing files and sent to external personnel for use in different software applications
• created exportable files for CAD software and document readers.

Knowledge evidence

• An individual must be able to demonstrate the knowledge required to perform the tasks outlined in the elements and performance criteria of this unit. This includes knowledge of:
• interpretations and planning of drawing needs for arboriculture projects, including:
• types of drawings used in arboriculture
• content and purpose of drawings
• use of drawings and importance of accuracy
• planning the design and drawing project
• sources of information for drawing development, including:
• project personnel
• site visits and survey plans
• digital images and aerial photography
• basic principles of 2D CAD drawing, including:
• 2D CAD software programs available
• CAD drawing tools
• principles of layers and a layering strategy
• CAD libraries and standard detail and components
• selecting and using fonts and styles in business and drawings
• selecting and setting dimension size and styles
• line types, thickness and colour as a means to communicate and differentiate design elements
• entering text and notations into CAD drawings
• setting and maintaining accuracy in CAD drawings
• basic tools and setup of a CAD drawing program, including:
• preparing the CAD desktop and user interface
• CAD drawing tools, their use and menu options
• preparing page layout for drawing size
• selecting hatch patterns, fill and colour
• creating and using title blocks
• use of style guides in maintaining quality and standards for organisations
• adding, editing and changing CAD components in drawings, including:
• drawing lines, shapes and polygons
• editing and deleting lines, text and shapes
• joining and breaking lines and shapes
• adding and editing text
• plotting and positioning trees and other symbols
• entering and positioning dimensions
• quality control check and document control
• page layout and standard size paper, including:
• International Organization for Standardization (ISO) and American National Standards Institute (ANSI) paper sizes and use in Australia
• standard file formats for drawings and file exchange between CAD software
• standard file formats for conversion of drawings for document sharing
• saving computer files, file directories and storage media, including:
• methods of saving files
• file retrieval and backup
• importing and exporting files
• organisational standards for naming, filing and file security
• scanning and importing documents and graphics into CAD software
• plan printers, plan plotters and printing requirements, including:
• print page size
• media type
• print quality
• calculating and plotting TPZ, SRZ and encroachments.

Foundation skills

• Writing: Document plan annotations according to plan requirements using terminology and style appropriate for arboriculture plans and drawings
• Numeracy: Identify and interpret embedded mathematical information from site plans and information, and transition into two-dimensional (2D) drawings
• Get the work done: Use the main features and functions of computer-aided design software and digital tools to generate 2D drawings

Unit content sourced from training.gov.au — © Commonwealth of Australia, licensed under CC BY 4.0. Auditori is not affiliated with the Department of Employment and Workplace Relations.

Questions about assessing AHCARB512