RDI workflow
Subcontractor Plant & Equipment Utilisation Verification
the evidence system fixed camera recordings and Gate Report ANPR data used to verify whether specific plant/equipment items were physically present on site and actively deployed during periods invoiced.
- Category
- Subcontractor & Labour Management
- Frequency
- Common
- Confidence
- High
- Evidence records
- 10
- Cost model
- Qualitative
Trigger, activity, conclusion
Subcontractor/plant hire company submits invoice for plant utilisation on day-rate/time-rate basis; main contractor's QS/PM believes charged period includes time when plant was not on site or was idle.
Reviewing fixed camera recordings and Gate Report data for relevant dates to establish actual mobilisation/utilisation/demobilisation timeline of specific plant items.
Plant utilisation dispute resolved — invoice confirmed and paid, or reduced to reflect verified utilisation period.
Workflow steps
- Step 01
Subcontractor/plant hire company submits invoice for plant utilisation on day-rate/time-rate basis.
Inferred - Step 02
Main contractor's QS reviews and identifies potential discrepancy.
Inferred - Step 03
QS/PM accesses the evidence system and identifies camera(s) with coverage of plant location.
Evidenced - Step 04
Gate Report ANPR data reviewed for relevant dates.
Evidenced - Step 05
Camera recordings reviewed for the disputed period.
Evidenced - Step 06
Specific clips exported for disputed dates.
Evidenced - Step 07
Exported clips and Gate Report data presented to subcontractor.
Inferred - Step 08
Parties negotiate settlement based on objective evidence.
Inferred - Step 09
Agreed utilisation period recorded and invoice adjusted/certified.
Evidenced - Step 10
Evidence archived as definitive plant utilisation record.
Inferred
Evidence records
We had a crane hire company claiming an extra week of standby charges — about £18,000. We pulled up the Gate Report and the camera footage and showed them the low-loader collecting the crane on the Tuesday afternoon. The invoice was withdrawn the same day.
Plant and equipment hire is one of the largest cost categories on civil engineering and structural construction projects. Day-rate and standby-rate disputes between main contractors and plant hire companies are extremely common — industry surveys consistently identify plant hire invoice disputes as among the top five sources of subcontractor payment conflict.
The use of independent, timestamped evidence to resolve plant utilisation disputes is established practice in construction adjudication and arbitration. the evidence system's combination of continuous camera recording and ANPR data provides a quality of evidence significantly more robust than site diary entries or plant logbooks, both of which are subject to challenge as self-serving records.
ROI model
dispute claims
Evercam provides visual evidence that resolves or prevents disputes with subcontractors, suppliers, and clients. Saving from faster resolution, avoided escalation, and prevented overcharges.
saving = (disputes_avoided_pct × disputes_per_year × avg_resolution_cost) + (overcharges_prevented_per_year × avg_overcharge_value)