Podcast
Questions and Answers
Which act outlines the fixation of monuments of permanent nature in the Philippine Geodetic Engineering?
Which act outlines the fixation of monuments of permanent nature in the Philippine Geodetic Engineering?
- RA 8570 (correct)
- RA 8550
- RA 8560
- RA 8590
According to DAO No. 2007-29, control surveys are defined and classified into which types?
According to DAO No. 2007-29, control surveys are defined and classified into which types?
- Geodetic and Public Land Surveys
- Geodetic and Project
- Geodetic and Cadastral (correct)
- Geodetic and Geographic
Who is responsible for issuing the Survey Order as defined in DAO No. 2007-29?
Who is responsible for issuing the Survey Order as defined in DAO No. 2007-29?
- LRA
- DENR
- NAMRIA (correct)
- HLURB
What is the primary purpose of conducting control surveys as per DAO No. 2007-29?
What is the primary purpose of conducting control surveys as per DAO No. 2007-29?
Which of the following is NOT a type of control survey as classified in DAO No. 2007-29?
Which of the following is NOT a type of control survey as classified in DAO No. 2007-29?
As stated in DAO No. 2007-29, control surveys are important for which of the following reasons?
As stated in DAO No. 2007-29, control surveys are important for which of the following reasons?
In the context of Philippine Geodetic Engineering, which of the following acts is amended by RA 8570?
In the context of Philippine Geodetic Engineering, which of the following acts is amended by RA 8570?
What document is required to be transmitted to the Administrator as per DAO No. 2007-29?
What document is required to be transmitted to the Administrator as per DAO No. 2007-29?
What activity should be proposed if NAMRIA has no available data for the area?
What activity should be proposed if NAMRIA has no available data for the area?
Which office is notified about the survey through the Provincial Engineer's Office?
Which office is notified about the survey through the Provincial Engineer's Office?
The individual status of reference points is a part of which inventory?
The individual status of reference points is a part of which inventory?
What coordinate systems must the Geographic Position and Plane Coordinates be determined in?
What coordinate systems must the Geographic Position and Plane Coordinates be determined in?
Which of the following is NOT a type of measurement activity proposed?
Which of the following is NOT a type of measurement activity proposed?
Which office is responsible for notifying about survey concerns according to the description?
Which office is responsible for notifying about survey concerns according to the description?
In the context of surveying, stable reference points must be researched and evaluated within what type of network?
In the context of surveying, stable reference points must be researched and evaluated within what type of network?
What are the Plane Coordinates referred to in the project area research?
What are the Plane Coordinates referred to in the project area research?
Which aspect should be avoided in the network design?
Which aspect should be avoided in the network design?
Which of the following features pertaining to the project area is most relevant in network design?
Which of the following features pertaining to the project area is most relevant in network design?
Where should the survey in network design begin and end?
Where should the survey in network design begin and end?
What is a critical element to consider for ensuring correctness in survey results?
What is a critical element to consider for ensuring correctness in survey results?
What type of controls are evaluated for their availability in the network design?
What type of controls are evaluated for their availability in the network design?
In the context of Network Design, which line is imperative for checking purposes?
In the context of Network Design, which line is imperative for checking purposes?
What serves as guidance in the conduct of actual ground surveys?
What serves as guidance in the conduct of actual ground surveys?
Which of the following is NOT considered in the Network Design?
Which of the following is NOT considered in the Network Design?
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Study Notes
Philippine Geodetic Engineering Act
- Control surveys fixed on the earth’s surface are governed by the Philippine Geodetic Engineering Act of 1998.
- Relevant Republic Acts include RA 8570, RA 8590, RA 8560, and RA 8550, addressing different survey types such as Topographic, Control, Consolidation, and Subdivision Surveys.
Survey Orders and Classifications
- Control surveys are classified into Geodetic and Cadastral, Geodetic and Public Land, Geodetic and Project, and Geodetic and Geographic as per DAO No. 2007-29.
- The survey orders are issued by NAMRIA (National Mapping and Resource Information Authority).
Network Design Considerations
- Network design for a project site must include a plot of controls and be compliant with Section 5.b of DMC 2010-13.
- It should encompass recovered and new control points to guide ground surveys.
Terrain and Features
- In network design, consider terrain and physiographic features which influence survey execution.
- Specific features such as physical geography and existing geodetic controls must be examined.
Established Control Points
- Surveys begin and end at established PRS 92 control points to ensure accuracy, focusing on baseline, tie line, and known lines for geometrical checks.
Technical Planning and Notification
- Technical plans for geodetic measurement activities are essential if NAMRIA lacks data for the area.
- Notifications regarding surveys should be sent to relevant provincial offices including the Provincial Engineer and District Engineer’s Office.
Inventory of Reference Points
- Conduct thorough research on the status of existing geodetic control and project control networks within the project area.
- Geographic Position and Plane Coordinates for these points should be verified using Local and Philippine Plane Coordinate Systems.
Importance of Data Verification
- Only reestablished and stable control points should be utilized, ensuring accurate measurements and data reliability.
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