CPPSIS5047
Conduct GNSS surveys


Application

This unit of competency specifies the outcomes required to conduct global navigation satellite system (GNSS) surveys for data collection and engineering set-outs, using GNSS equipment and suitable software to communicate with GNSS receivers. The unit covers project managing data collection activities, including planning collection methodologies and allocating work tasks in a team environment. The unit requires the ability to validate the accuracy of data and identify discrepancies between specifications and actual activities.

The unit supports those who work under limited supervision in a surveying team.

No licensing, legislative, regulatory, or certification requirements apply to this unit of competency at the time of endorsement.


Elements and Performance Criteria

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element. Where bold italicised text is used, further information is detailed in the range of conditions.

1.

Prepare for GNSS survey.

1.1.

GNSS survey specifications and organisational requirements are identified and analysed, and key activities and timelines are scheduled according to available resources.

1.2.

Equipment is prepared according to survey and organisational requirements.

1.3.

Survey methodology is planned to meet survey specifications and organisational requirements.

1.4.

Existing survey control data is obtained and validated according to organisational requirements.

1.5.

Set-out data is collated, validated, manipulated and uploaded into GNSS receiver.

1.6.

Work responsibilities are allocated and communicated to appropriate persons according to survey and organisational requirements.

2.

Carry out GNSS surveying tasks.

2.1.

GNSS equipment is operated according to survey specifications and organisational requirements.

2.2.

GNSS instruments are related to a reference system based on survey specifications.

2.3.

GNSS data is collected using planned methodology according to survey specifications and organisational requirements.

2.4.

GNSS measurements are validated and recorded on the reference system according to specifications.

3.

Finalise GNSS survey.

3.1.

GNSS software is used to process data according to survey specifications and organisational requirements.

3.2.

Validation checks are completed according to specifications and organisational requirements.

3.3.

Discrepancies between specifications and actual data are identified and addressed according to survey specifications and organisational requirements.

3.4.

Survey is finalised and documentation completed according to organisational requirements.

Evidence of Performance

A person demonstrating competency in this unit must satisfy the requirements of the elements, performance criteria, foundation skills and range of conditions of this unit. The person must also plan and conduct a global navigation satellite system (GNSS) survey for data collection and engineering set-outs for two different projects.

While conducting the above GNSS surveys, the person must:

plan and document data collection methodologies that account for the following:

accessibility of marks

environmental considerations

field reconnaissance

GNSS methodology to be used

network design

placement of survey marks

work health and safety considerations

schedule and allocate resources and work tasks

collect data for GNSS positions, including differential methods

operate GNSS equipment and software, as specified in the assessment conditions, to collect data appropriate to survey specifications

communicate clearly with others to clarify and report work information

analyse survey specifications, including:

cross-sections and plans

technical descriptions of surveying data and their requirements

apply projection and datum parameters when using GNSS equipment and software

comply with industry-accepted standards for validating accuracy of GNSS data

comply with organisational requirements for:

completing records and documentation

recording, storing and filing data

using and storing GNSS equipment

working safely and using personal protective equipment (PPE)

use industry-accepted validation methods to test accuracy of data and identify errors and discrepancies.


Evidence of Knowledge

A person demonstrating competency in this unit must demonstrate knowledge of:

accuracy and precision requirements for GNSS data and network surveys

GNSS data formats and collection methods

industry-accepted methods for validating data to identify errors and discrepancies

methods for accessing, manipulating, retrieving and archiving GNSS data

organisational policies and procedures relating to:

health and safety relating to survey activities

reporting and documentation

using and allocating resources

using GNSS equipment and software

projection and datum parameters required for GNSS equipment and processing software

reference systems for GNSS data

techniques for project management

types of GNSS equipment and software and their uses.


Assessment Conditions

The following must be present and available to learners during assessment activities:

equipment:

geodetic GNSS receiver

GNSS equipment, including equipment capable of differential and real time modes of operation

GNSS software application

PPE

specifications:

survey specifications

organisational policies, procedures and documentation relating to work health and safety

relationships with team members and supervisor:

working in a team.

Timeframe:

as specified by project requirements.

Assessor requirements

As a minimum, assessors must satisfy the assessor requirements in the Standards for Registered Training Organisations (RTOs) current at the time of assessment.


Foundation Skills

This section describes the language, literacy, numeracy and employment skills essential to performance in this unit but not explicit in the performance criteria.

Skill

Performance feature

Initiative and enterprise skills to:

analyse and decide GNSS data collection methods.

Planning and organising skills to:

plan and prioritise work to meet survey timeframes and resource constraints.

Numeracy skills to:

analyse metadata and positional data, and set-out positional accuracy

solve problems relating to height, dimension, direction and position in actual operational activity and virtual representation.

Oral communication skills to:

ask questions to clarify colleagues’ understanding of delegated tasks.

Reading skills to:

analyse graphical and technical information in maps, engineering drawings, field records and survey plots.

Writing skills to:

record technical information in organisational documentation.

Technology skills to:

access, manipulate, retrieve and archive data

calibrate and validate GNSS equipment.

Problem-solving skills to:

select appropriate validation methods to verify accuracy of data.


Range Statement

This section specifies work environments and conditions that may affect performance. Essential operating conditions that may be present (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) are included. Bold italicised wording, if used in the performance criteria, is detailed below.

Appropriate persons must include at least one of the following:

client

colleague

end user

manager

registered or qualified surveyor.


Sectors

Surveying and spatial information services