RDI workflow
Schedule / Milestone Progress Verification
the evidence system camera footage, time-lapse sequences, and the compare/snapshot tool are used alongside the project programme to visually verify whether work on site is tracking to plan — identifying delays, confirming milestone completions, and generating footage-backed evidence for EOT or prolongation claims.
- Category
- Progress Tracking & Documentation
- Frequency
- Very Common
- Confidence
- High
- Evidence records
- 75
- Cost model
- Qualitative
Trigger, activity, conclusion
A scheduled programme review meeting, a reported or suspected delay to a critical-path activity, a milestone payment point approaching, or a subcontractor's completion claim that needs visual verification against the programme.
Reviewing preserved footage, time-lapse, or snapshot comparisons against the planned programme to confirm whether work has progressed at the expected rate and build a contemporaneous visual record to support schedule-related claims.
The programme review is completed with visual evidence either confirming on-schedule progress or identifying and quantifying a delay, incorporated into the programme update or a formal EOT claim package.
Workflow steps
- Step 01
A programme review trigger occurs — a scheduled review, a delay reported by the site manager, an approaching milestone payment date, or a subcontractor's completion claim.
Inferred - Step 02
PM or planning engineer identifies specific activities in the programme that need visual verification and notes the relevant date ranges and site areas.
Inferred - Step 03
the evidence system recordings or time-lapse accessed for the relevant periods and camera views covering the work areas in question.
Evidenced - Step 04
Footage reviewed to assess actual progress — what was built, when work started and stopped, worker numbers deployed, plant and materials on site.
Evidenced - Step 05
Compare/snapshot tool used to generate before-and-after images of key areas at milestone dates, enabling a rapid visual assessment of progress increment.
Inferred - Step 06
Time-lapse sequences reviewed at accelerated rate to assess activity patterns — identifying periods of inactivity, slow mobilisation, or weekend working.
Inferred - Step 07
Observations documented and compared against the baseline programme. Delays quantified in days.
Inferred - Step 08
Where a delay is identified, footage evidence used to notify the relevant subcontractor, build an EOT/prolongation record, or brief senior management.
Evidenced - Step 09
If subcontractor underperformance is identified, footage triggers a formal written notice of delay or a recovery plan discussion.
Inferred - Step 10
Visual record archived as part of contemporaneous project documentation, available for future claims or disputes.
Inferred
Evidence records
They are using time-lapse and recordings to monitor subcontractor progress against the programme and to identify delays for EOT claims.
Camera footage used to compare planned vs. actual progress at milestone dates — screenshot comparison provided visual proof of delay quantum for the client.
Used recordings to verify that the concrete sub was not delivering the agreed number of pours per week — used as basis for formal delay notice.
ROI model
site visit avoidance
Evercam replaces or reduces physical site visits with remote viewing. The baseline cost is the number of visits × cost per visit. The saving is the proportion of visits that Evercam eliminates.
saving = visits_per_week × project_duration_weeks × visit_cost × evercam_reduction_pct