3 Workers Entered the Exclusion Zone.
Your Spotter Was on the Radio.
The paint is gone. The flagging is shredded. Prism station 7 showed 2mm of overnight movement and the weekly report won't be reviewed until Friday. POD tracks every worker, every zone, every millimeter — and alerts the geotechnical engineer before the first truck runs the haul road.
Why Open Pit Ground Control Fails
Four systemic gaps between what the ground control plan requires and what actually happens at the active face every shift.
Exclusion Zone Boundaries Erode Within Days
Exclusion zone perimeters are marked with survey paint and plastic flagging. Rain washes the paint. Wind shreds the flagging. Within 72 hours the boundary is invisible. A haul truck operator running a night shift has no reference line between the road edge and a 200-foot drop into the active face.
Prism Data Reviewed Weekly — Ground Moves Daily
Survey crews read prisms on Monday. The geotechnical engineer reviews the data on Friday. In between, 2mm of bench crest movement goes undetected because nobody is plotting daily deltas. By the time the weekly report flags acceleration, the slope has already moved 14mm and the haul road beneath it carries 40-ton loads every 8 minutes.
Spotter Communication Gaps During Shift Transitions
The day-shift spotter radios "all clear" at 6:00 PM. The night-shift spotter checks in at 6:20 PM. For 20 minutes, equipment operates near active faces with no visual verification. Radio handoff protocols exist on paper, but the gap between shifts is where 3 of the last 5 proximity incidents occurred.
Near-Miss Events Documented From Memory Hours Later
A loader backs within 15 feet of a highwall tension crack at 10:30 AM. The operator mentions it during the end-of-shift safety meeting at 5:00 PM. By then the crack location is approximate, the distance is estimated, and no photo exists. The near-miss report reads "equipment near highwall" with no actionable data for the geotechnical team.
The POD Ground Control Advantage
Every exclusion zone enforced digitally. Every movement reading plotted the same day. Every near-miss captured at the point of occurrence.
GPS-Tracked Exclusion Zone Digital Fence
POD establishes digital exclusion zone perimeters using GPS coordinates from the mine survey. When any worker or equipment enters a restricted zone, POD logs the entry with exact coordinates, timestamp, and duration. No paint to wash away. No flagging to shred. The boundary exists in every device on the site.
Daily Prism Data Integration With Movement Alerts
Survey readings flow into POD the same day they are taken. POD plots daily movement deltas against threshold values set by the geotechnical engineer. When a bench crest moves 2mm overnight, the alert fires before the first haul truck runs that road — not on Friday when someone opens a spreadsheet.
Spotter Communication Logger With Gap Detection
POD tracks spotter check-in and check-out times for every active zone. When a gap exceeds the site-defined maximum (default: 5 minutes), an alert fires to the shift supervisor. Every spotter handoff is timestamped so there is never a question about who was watching the active face and when.
Voice-Reported Near-Miss With Location and Photo
The operator speaks the near-miss report at the point of occurrence. POD captures GPS coordinates, timestamps the event, and prompts for a photo of the condition. The geotechnical team receives the report within minutes with exact location data — not a vague recollection 7 hours later at the safety meeting.
Watch 3 Workers Enter the Exclusion Zone
Open pit cross-section with bench levels, haul roads, and real-time exclusion zone monitoring. The active face pulses red. Workers drift in. POD catches it before the spotter does.
3 Workers Entered the Exclusion Zone Today — Your Spotter Didn't See Them
Real-time proximity risk scoring and near-miss trending across every active zone — auto-calculated from daily field reports.
Ground Control Intelligence Built for Open Pit Operations
Exclusion Zone Digital Fence
GPS-defined perimeters that never wash away. Every entry logged with coordinates, worker ID, timestamp, and duration. Historical zone violation data feeds into proximity risk scoring.
Prism Data Integration Dashboard
Daily survey readings plotted against movement thresholds. Acceleration trending with color-coded alerts: green (stable), amber (watch), red (action required). Movement history by station exportable for MSHA documentation.
Spotter Communication Logger
Timestamped check-in and check-out for every active zone spotter. Gap detection with automatic escalation to shift supervisor. Full audit trail of who was watching which zone at every moment.
Ground Movement Alert Dashboard
Real-time consolidation of prism, inclinometer, and visual observation data. 14-day trend graphs per monitoring station. Automatic correlation between movement acceleration and weather, blasting, and loading events.
“We had a loader operator back within 20 feet of a tension crack on bench 3 at 10 AM. The spotter was on the radio coordinating a blast clearance on the opposite side of the pit. Nobody logged it until the 5 PM safety meeting. By then the crack location was ‘somewhere near station 14’ and the distance was a guess. With POD, that event would have been captured in 30 seconds with GPS coordinates and a photo. The geotech team would have had it before lunch.”
— Geotechnical Engineer, Open Pit Copper Mine
Frequently Asked Questions
How Many Workers Entered the Exclusion Zone Today?
See how POD turns ground control data into real-time alerts — every zone violation logged, every prism reading plotted, every near-miss captured at the face.
Last updated: March 2026