(03 Jun 2014, 10:35 pm)aureolin wrote Yes - the internal expectation should be zero.
If you bid for a contract that has an expectation of zero instances of non-compliance (as outlined in ITT documentation), then the contractors own expectation should be no different. As far as Nexus are concerned, the contractor has agreed they can do the work to a required standard. I doubt they could give a monkey's chuff about how many vehicles the contractor has off the road etc. That's the contractors problem, and they should have continuity planning around it.
Wasn't it said that Nexus-secured services have 'optimistic' timings? When those timings are a little less 'optimistic', then perhaps traffic won't be such an issue and operators stand more of a chance of being able to stick to time and/or not have to run light to make up time. Maybe then we can look forward to zero expected instances of fines.