How to Mitigate Risk in Large-Scale Projects: A Guide for Project Directors

On large NEC4 jobs the risk that costs most is rarely technical. It is slow leakage: events notified late, programmes not revised, allowances buried in durations. 3 gates a Project Director can hold.

Gate 1: a baseline you can defend

  • Know who owns the float. Delay to the Completion Date is measured from planned Completion (63.5), so float inside the programme absorbs a compensation event’s delay first. Terminal float, between planned Completion and the Completion Date, stays with the Contractor.
  • Watch the near-critical paths. The secondary chain with 5 days of float is the one that turns critical while everyone watches the main path.
  • Resource the programme from the market you actually have. A programme built on labour you can’t get doesn’t represent the Contractor’s plans realistically, and 31.3 lets the Project Manager reject it for that.

Gate 2: notification discipline

  • Early warnings at the first sign (15.1).
  • Compensation events notified within 8 weeks (61.3). Miss that and time and money are lost, unless the event came from a Project Manager or Supervisor instruction.
  • No agreeing to agree later. Where the effects are too uncertain to forecast, the Project Manager states assumptions in the instruction to quote (61.6), and a later correction is itself a compensation event (60.1(17)).
  • Site records that give the cause of each delay at the time, tied to the event it belongs to.

Gate 3: numbers on risk

  • Run a schedule risk analysis and set the budget and programme at P80, with the deterministic date as the floor.
  • Price risk into quotations. The assessment of a compensation event includes risk allowances for matters with a significant chance of occurring that are not compensation events (63.8). Leave them out and you give money away.
  • Look for chain risks: a late technical acceptance that stands a gang down and pushes a possession or an outage.

Stepping in early

Look at 3-month rolling productivity rather than last month’s snapshot. A trend shows while there is still time to act on it.

VERTX gives director-led review of programmes, notices and risk on live jobs.

Talk it through with the director: info@vertxprojectcontrols.co.uk, or book a consultation.

More insights

Scroll to Top