can't have been - at Silverstone last year there was zero traffic management - hence they lost the BTCC this year
I'll check tomorrow - I know they have something to do with Rockingham, although it could just be the security side rather than the traffic side. You realise that the also do Donnington and Brands too!
The issue with traffic management, was the fact that Silverstone management tell the traffic management company how many people to expect and set the budget to how much they pay. Silverstone screwed up and ordered too little staff, hence they got the problems that were experienced (if that makes sense).