what information should you scan during surveying

2 min read 26-12-2024

what information should you scan during surveying

Surveying, whether for construction, land management, or other purposes, involves collecting a significant amount of data. Efficient data collection relies heavily on knowing what to prioritize and how to scan the environment effectively. This article details crucial information to scan for during various surveying activities.

Key Information to Scan During Surveying

Effective surveying requires a systematic approach. Don't just look; actively scan for specific details. Prioritize these crucial pieces of information:

1. Existing Features and Boundaries

Property lines: Clearly identify and mark property boundaries using existing markers (stakes, monuments, etc.). Any discrepancies need immediate attention.
Buildings and structures: Note the location, size, and condition of all buildings and structures within the survey area. Document any encroachments.
Utilities: Locate and mark underground and overhead utilities (power lines, water pipes, gas lines) to prevent damage during construction or other activities. Use appropriate safety protocols. Utilize utility locating services when necessary.
Roads and pathways: Document the location and condition of all roads and pathways. Note any obstacles or potential hazards.
Vegetation: Identify and mark significant vegetation, including trees, shrubs, and other plant life. Note sizes and types. This data is critical for site planning.
Topography: Observe and record the natural contours of the land. Note any significant changes in elevation. This is essential for accurate mapping and design.

2. Survey Control Points

Benchmarks: Locate and record the elevation of existing benchmarks to establish a vertical datum. Verify their condition.
Control points: Identify and record the coordinates of existing control points to establish a horizontal datum. This ensures accurate positioning.
Survey markers: Locate and document all survey markers, even if seemingly insignificant. They provide crucial reference points.

3. Potential Hazards and Obstacles

Steep slopes and unstable terrain: Note any areas with steep slopes or unstable terrain that may pose safety risks or impact construction.
Water bodies: Identify and mark any water bodies (streams, ponds, rivers) within the survey area. Note water flow directions.
Environmental concerns: Scan for potential environmental concerns like wetlands, endangered species habitats, or contaminated soil. Proper documentation is crucial.
Obstacles to surveying equipment: Identify any obstacles that could impede the use of surveying equipment (dense vegetation, power lines).

4. Data Recording and Verification

Accuracy: Ensure the accuracy of all recorded data. Verify measurements and observations.
Completeness: Thoroughly document all features and information. Nothing should be missed.
Clarity: Make sure all recordings are clear, concise, and easily understood. Use consistent notation.
Technology: Utilize appropriate surveying technologies (GPS, total stations, drones) and software to streamline data collection and processing.

Specific Surveying Types and Scanning Needs

The type of survey dictates specific scanning priorities:

Construction Surveying: Focus on building locations, utilities, and potential obstacles to construction. Detailed topography is essential for grading and site preparation.

Topographic Surveying: Prioritize elevation changes, contours, and natural features. Accurate mapping is the primary objective.

Boundary Surveying: Pay meticulous attention to property lines, markers, and any evidence of ownership. This requires thorough research and documentation.

As-built Surveying: Scan for any deviations from the original plans. Document all existing structures and utilities accurately.

Remember to always prioritize safety and follow all relevant safety protocols. A thorough scan allows for a complete and accurate survey. Regular checks and quality control throughout the process are vital for reliable results.