Safety Norms: Geospatial Engineering and Surveying Technology

1Purpose, Scope, and Safety Principles

These norms set out how students, technicians, and practitioners protect themselves, colleagues, and the public during measurement and positioning work. The subject includes boundary and topographic surveys, construction layout, control networks, mapping missions, hydrographic work, and the processing of field data into maps, models, and records. Positioning work often places people beside roads, excavations, energized lines, water, steep ground, and private property, so safety responsibility extends well beyond the instrument operator.

Four principles apply throughout. Hazards are identified before work starts. Controls are chosen in order of effectiveness: avoid or eliminate the hazard first, then apply engineering safeguards, then administrative controls, and finally personal protective equipment. No task proceeds when a qualified person judges it unsafe. Every near miss is reported so the local procedure can improve.

• MUST: Label every mandatory rule in local procedures and keep it separate from recommendations.
• JURISDICTION: Laws, licensing, aviation rules, utility requirements, and manufacturer instructions vary. Verify current versions with competent authorities or qualified professionals.

2Roles, Competence, and Accountability

The employer or academic institution owns the safety program. It provides a written field procedure, equipment in good condition, training time, and clear authority for crew leaders to stop work. The crew chief plans each job, confirms the hazard assessment, verifies permits, and holds a pre-task briefing. Each team member reports hazards, uses assigned controls, and refuses unsafe work without penalty.

Competence means documented training and supervised experience for each specific task. Students and new technicians collect data only under supervision. Work that legally requires a professional license, such as boundary determination, must be performed only by someone holding that authorization where the work occurs. Certified operator credentials may also be required for certain aircraft, traffic control, or machinery. Verify these requirements with the relevant licensing board or aviation authority.

• MUST: No one operates a total station, GNSS rover, scanner, drone, or survey vehicle without documented task training.
• MUST: The crew chief holds stop-work authority and can halt any task at any time.
• SHOULD: Assign a second person to any field task performed near traffic, water, or heights.

3Activities, Hazards, and Risk Assessment

Typical activities include setting control points, staking construction alignments, scanning building interiors and exteriors, flying drones over sites, mapping utility corridors, collecting shoreline data from boats, and processing point clouds in offices. People involved include crew members, property owners, traffic control personnel, utility workers, contractors, and members of the public who may approach equipment. Tools include tripods, prisms, rods, GNSS poles, scanners, drones, vehicles, ladders, and laptops. Environments range from highway shoulders and construction zones to forests, wetlands, and rooftops.

Before each field job, complete a written hazard assessment. Rate each hazard by likelihood and severity using the matrix defined in the local program, usually as low, medium, or high. Name the control, the responsible person, and the verification step. A high rating is not accepted without added controls or a documented decision by the responsible manager.

• Traffic: motorists and moving equipment near the work zone. Rating is usually high. Control: approved traffic control plan, qualified setup where required, high visibility clothing, and a dedicated spotter.
• Utilities: buried and overhead lines, gas, water, and fiber. Rating is high. Control: utility locate request before ground penetration, and no mast or rod raised near lines until clearance is confirmed.
• Excavations and ground: trenches, unstable slopes, water edges, and sinkholes. Control: no entry into excavations, and shooting only from a safe distance set by the competent person in charge.
• Falls and slips: ladders, embankments, wet rock, and boat decks. Control: three points of contact on ladders and fall protection where height risk exists.
• Lasers and radio: scanner beams, rangefinders, and RTK radio links. Control: check laser class labeling and avoid direct viewing of beams.
• Aircraft: drone collisions with people, structures, aircraft, or power lines. Control: authorization, flight plan, pre-flight check, and visual observer.
• Weather and remote isolation: lightning, heat, cold, and loss of communication. Control: go or no-go check and scheduled check-ins.
• Data and privacy: images of people or private property, and location data for sensitive sites. Control: data minimization and access limits.

4Preventive Controls and Safe Work Practices

Permits and clearances come before fieldwork. Work in a public right-of-way, on private land, near utilities, or in a restricted site requires the permit or written permission that applies locally. Confirm requirements with the road authority, utility owners, landowners, or site operator. Submit utility locate requests and confirm the marks before driving rods, stakes, or pins. Locate marks may expire under local rules, so check their status before each use.

Traffic control follows a written plan prepared by a qualified person and approved by the authority responsible for the road. Crew members stay in designated safe zones, never stand between a parked vehicle and passing traffic, and cross active lanes only after a spotter confirms a gap. Park so the driver exits away from traffic, and back vehicles only with a spotter.

Set up tripods with legs fully extended and locked, placed on stable ground. Carry rods and masts so they cannot contact overhead lines, fences, or structures. Inspect ladders before each use and place them on firm, level footing at the angle the manufacturer specifies.

• MUST: Do not enter excavations for measurement. Shoot from the edge at a safe distance set by the competent person in charge.
• MUST: Keep the minimum clearance from overhead power lines required by the utility owner or local rule. Treat every line as energized until the owner confirms otherwise.
• MUST: Do not fly a drone without required authorization, a pre-flight check, a clear flight area, and a visual observer where the rules require one.
• MUST: Wear a personal flotation device on boats and shorelines with drowning risk. Never work alone on water.
• MUST: Do not look into an active laser beam or point it toward people, aircraft, or vehicles.
• MUST: Stop work and move to shelter at the first sign of nearby lightning, following the local weather policy.
• SHOULD: Use two-person crews for remote or solo-unsafe tasks, with check-in times logged.
• SHOULD: Carry a charged communication device and a written route description to the site.
• SHOULD: In the office, adjust monitors and chairs for ergonomic posture, keep cables out of walkways, and schedule breaks from screen work.

5Equipment, Environment, Information, and Protective Safeguards

Personal protective equipment is selected from the hazard assessment. Common items include high visibility clothing for road and drone work, hard hats near overhead or construction hazards, safety footwear, eye protection for debris and laser work, gloves for sharp materials, hearing protection near generators, and a personal flotation device on water. Inspect PPE before each use and replace damaged items. PPE never replaces removing or isolating a hazard.

Guards, covers, and maintenance keep equipment safe. Keep guards in place on generators, saws, and power tools. Propeller guards and other drone protections are removed only as the manufacturer allows. Inspect battery packs for swelling or heat, store and transport them in approved containers, and charge them only as the manufacturer permits. Check vehicles before each trip and inspect tripods, prisms, and rods for cracks or loose fittings. Tag faulty equipment out of service and lock it out until repaired by a qualified person.

Environmental protection covers fuel, oils, marking paint, cleaning solvents, and waste. Refuel generators and vehicles away from waterways, keep spill kits on site, and return batteries and chemical containers to approved disposal channels. Avoid disturbing wetlands, protected habitats, or archaeological features without authorization. Information safeguards cover coordinates of sensitive infrastructure, images of private property, and personal data. Store raw and processed data in access-controlled locations, use strong authentication, encrypt portable drives where practice allows, and share data only with authorized recipients.

• MUST: Do not publish location data for critical infrastructure without approval from the owner or authority.
• MUST: Remove damaged or swollen batteries from service and report them to the supervisor.
• SHOULD: Record equipment serial numbers and maintenance history in the project file.

6Incident Reporting, Emergency Response, and Escalation

Report every injury, illness, near miss, property damage, utility strike, vehicle collision, aircraft incident, data loss, and unauthorized access to the crew chief immediately. Document it within the timeframe set by local policy, and do not wait until the end of the shift. If a utility is struck, move everyone away, keep others out, call emergency services and the utility owner, and do not attempt to repair or move damaged lines or gas equipment.

Each site plan lists the site location or coordinates, nearest medical facility, emergency contacts, first aid kit location, communication method, and a meeting point. Only trained personnel provide first aid, following their training and local guidelines. Do not enter water, excavations, or energized areas to rescue someone unless trained and equipped to do so. Call rescue services instead.

• Immediately: stop work, secure the area, protect people, and call emergency services when needed.
• Escalate to the safety officer and management for serious injury, utility strike, aviation incident, or regulator contact.
• Preserve evidence such as photographs, damaged equipment, and flight logs without altering them.
• Route media and regulator questions to the designated manager. Do not speculate publicly about causes.

7Records, Training, Inspection, and Review

Maintain records of training, licenses, certifications, permits, locate requests, hazard assessments, equipment inspections, maintenance logs, drone flight logs, incident reports, and data access approvals. Retention periods are jurisdiction-dependent and should be confirmed with the records owner and a legal advisor. Records must be accurate, legible, and retrievable by authorized personnel.

Training covers orientation, task-specific instruction, traffic control awareness, utility awareness, laser and radio safety, drone operation under applicable rules, first aid where assigned, and data protection. Refresher training follows incidents, equipment changes, and procedure revisions. The safety officer reviews the norms after each serious incident, after significant technology changes, and after regulatory revisions.

• SHOULD: Run an emergency drill for utility strikes and medical response at least once per project.
• SHOULD: Audit field kits, PPE, and permits before mobilization and log the results.

8Conclusion and Implementation

These norms provide a practical baseline for geospatial engineering and surveying technology. They must be converted into locally approved procedures, reviewed by qualified professionals, and aligned with current laws, licensing requirements, aviation rules, utility requirements, and manufacturer instructions. Formal training, supervision, and access to emergency services remain essential. Safe measurement depends on disciplined planning, clear authority, and immediate reporting of problems.

Implementation checklist

• Confirm the hazard assessment and control plan before each field task.
• Verify permits, right-of-way approvals, and landowner permission.
• Obtain utility locate marks before any ground penetration.
• Confirm the traffic control plan and spotter positions before setup.
• Check power line clearances and keep masts and rods away from energized lines.
• Inspect PPE, instruments, drones, batteries, and vehicles before use.
• Confirm drone authorization, flight plan, and visual observer arrangements.
• Keep a two-person crew for solo-unsafe work and log check-in times.
• Report every near miss and incident immediately.
• Protect survey data with access controls and authorized sharing only.
• Record maintenance, training, and inspection results in the project file.