Assessment & Expert Witness

Technical due diligence and second opinion

Testing technical assumptions, conditions, costs and proposed solutions independently before far-reaching decisions.

Does this match your situation?

Before the decision, not after it.

A second professional view examines the existing assumptions, documents and assessments without a predetermined outcome, and makes visible what a decision actually rests on.

  • Are the cost and condition assumptions sound?
  • Which risks are not visible in the submission?
  • Is the proposed modernisation technically coherent?

Scope of services

What OSK-Consult takes on.

The individual elements are agreed to suit the question at hand.

  • Condition and risk assessment of infrastructure and rolling stock
  • Review ahead of investment or modernisation decisions
  • Assessment of maintenance backlogs
  • Plausibility review of cost and programme assumptions
  • Review of technical project and corporate documents
  • Second opinion on reports, bids and proposed solutions

Working together

From the question to the findings.

  1. Agree the question

    Define the decision in question and the existing assessment together.

  2. Carry out the work

    Test the assumptions, data, cost and risk behind the submission.

  3. Explain the findings

    Set out what holds and what uncertainty remains for the decision.

A second opinion examines existing material. Where new options are to be developed and compared, a study is the better starting point.

Technical context

Your contact

Hands-on railway experience and work on national and international projects form the background to the technical judgement.

Career and network

The first step

Tell us what you are dealing with.

Tell us the decision ahead and the material it rests on – an expert report, a bid or an investment plan. A relevant decision date also helps.