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Service 30

Data Validation & Quality Control

Reviewable checks against the agreed data specification.

Indian analysts reviewing traffic-data validation and quality-control indicators
Data validation and quality control

How the study is observed

This original conceptual diagram illustrates the study structure. The exact methodology is confirmed against the approved project brief, available source material and local requirements.

Technical visual · Traffic survey workflow diagram
Traffic survey workflow diagramBRIEFCOLLECTDELIVER

Study at a glance

Apply review checks for completeness, consistency, intervals, movements and class outputs against the approved specification.

Typical outputs

  • ↳ Coverage and exception register
  • ↳ Reconciliation checks
  • ↳ QA summary and release notes

Review focus

  • ↳ Missing intervals
  • ↳ Movement/class total reconciliation
  • ↳ Definition and format consistency

Service summary

Data Validation & Quality Control records the agreed observations for a defined project scope.

When it is used

Use it when the project decision needs a clear, reviewable record of the specified activity.

Methodology

The method is tailored to the location, source material, observation rules and delivery format agreed in the brief.

Inputs and source requirements

Provide locations, dates, periods, observation rules, classifications and requested outputs.

Movements and classifications

Directions, movements and classifications are specified only where relevant to the study.

Time intervals

The interval structure is agreed before collection or processing.

Typical deliverables

Structured data tables, agreed summaries, scope notes and quality-review information.

Quality control

Checks focus on completeness, consistency and alignment with the agreed specification.

Limitations

The output describes the agreed observed scope and period; it does not support claims beyond the available evidence.

Privacy and security

Sensitive files are exchanged only through approved project workflows.

Frequently asked questions

What does QA/QC review?

It checks the delivered evidence against the approved scope, definitions, intervals and output structure.

Does QA certify future accuracy?

No. It documents review of the defined dataset and its observable limitations.

  • ISO 9001:2015Quality management
  • ISO 27001:2022Information security
  • Structured QA/QCDefined review checks
  • Global supportProject-specific delivery