Property/Boundary Surveys and Lot Computation - Concept Map
Cadastral Survey & Technical Description of Land Parcels
Related concepts
Boundary Survey
Sub concepts
- Corner Establishment
- Overlap Resolution
- Gap Resolution
- Control Ties
- Field Measurements
Relationship to central
Core methodology for establishing parcel corners and boundaries
Relocation Survey
Sub concepts
- Recovery from Title/Plan
- Technical Description Analysis
- Historical Control Points
- Reconstruction Methods
Relationship to central
Procedure for re-establishing lost or damaged corners
Lot Area Computation
Sub concepts
- Shoelace Formula
- Coordinate Systems
- Closure Verification
- Area Units Conversion
Relationship to central
Mathematical calculation of parcel area from coordinates
Technical Description
Sub concepts
- Distance Calculation
- Bearing Determination
- Quadrant Assignment
- Degrees Minutes Seconds Format
- Legal Description Writing
Relationship to central
Formal documentation of boundary lines with bearings and distances
Coordinate Systems
Sub concepts
- WGS84 Datum
- PRS92 Datum
- PPCS Coordinates
- UTM Projection
- Local Coordinates
Relationship to central
Reference frameworks for expressing corner locations
Misclosure & Adjustment
Sub concepts
- Latitude Closure
- Departure Closure
- Linear Misclosure
- Bowditch Adjustment
- Tolerance Standards
Relationship to central
Quality control and correction of survey measurements
Philippine Land Laws
Sub concepts
- RA 4374 - Land Titles Act
- RA 8560 - Property Registration Decree
- PD 1529 - Property Registration Decree
- CA 141 - Public Land Act
- DENR Guidelines
Relationship to central
Legal framework governing cadastral surveys and property rights
Concept connections
- Boundary SurveyTechnical DescriptionField measurements from boundary survey provide raw data for computing bearings and distances in technical description
- Lot Area ComputationTechnical DescriptionArea calculation results are included in the technical description as a key property identifier
- Misclosure & AdjustmentBoundary SurveyMisclosure checks validate the quality of boundary survey measurements and identify correction needs
- Coordinate SystemsLot Area ComputationCorner coordinates must be expressed in the same coordinate system for accurate area calculation
- Relocation SurveyTechnical DescriptionTechnical description from the title document guides the relocation of lost corners
- Philippine Land LawsTechnical DescriptionLegal requirements (RA 4374, RA 8560, PD 1529) mandate specific format and accuracy standards for technical descriptions
- Coordinate SystemsTechnical DescriptionThe coordinate system framework (WGS84, PRS92, PPCS) provides the datum reference for all bearing calculations
- Misclosure & AdjustmentLot Area ComputationAdjusted coordinates from misclosure correction are used to recalculate the final lot area
- Boundary SurveyCoordinate SystemsSurvey measurements are converted to coordinates within the specified coordinate system
- Relocation SurveyBoundary SurveyRelocation identifies corners that may then be used as control points for new boundary surveys
- Philippine Land LawsBoundary SurveyLaws define survey procedures, corner marking standards, and documentation requirements
- Philippine Land LawsLot Area ComputationLegal standards specify area calculation methods and acceptable precision levels
- Technical DescriptionRelocation SurveyThe technical description provides the bearing and distance data needed to reconstruct lost corners
- Misclosure & AdjustmentTechnical DescriptionAdjusted coordinates from Bowditch method produce corrected bearings and distances for the description
- Boundary SurveyMisclosure & AdjustmentSurvey measurements produce latitude and departure sums that are checked and adjusted for closure
- Lot Area ComputationMisclosure & AdjustmentClosure check includes verification that coordinate sums approach zero, indicating acceptable measurements
Diagrams
Property/Boundary Surveys and Lot Computation - Concept Hierarchy
Comprehensive concept hierarchy showing the central theme of cadastral surveys and technical property descriptions, with seven major branches covering boundary surveys, relocation methods, area computation, technical description procedures, coordinate systems, misclosure handling, and legal framework.
Boundary Survey Execution Process
Step-by-step flowchart showing the complete boundary survey execution process, from obtaining the title document through establishing control, locating and measuring corners, computing coordinates, checking closure, and finalizing the survey documentation.
Lot Area Computation using Shoelace Formula
Detailed flowchart demonstrating the shoelace formula computation process for calculating lot area from corner coordinates, including proper ordering, tabulation, and verification steps.
Technical Description - Bearing & Distance Determination
Complete flowchart showing the process of determining line bearings and distances from coordinates, including calculation steps, quadrant determination logic, and conversion to standard DMS bearing format.
Misclosure Detection and Adjustment Workflow
Workflow for detecting, analyzing, and correcting misclosure errors in boundary surveys, including decision points for tolerance acceptance, error investigation, and application of Bowditch adjustment method.
Relocation Survey - Reconstruction of Lost Corners
Comprehensive workflow for relocating and reconstructing lost property corners using the original technical description, reference points, historical records, and coordinate calculations.
Lot Area Computation State Transitions
State diagram showing the progression of lot area computation from data entry through verification, with decision points for closure checking and correction loops.
Components of a Complete Technical Description
Distribution of effort and importance across the five main components that comprise a complete and legally acceptable technical description of a property boundary.