These are the trucks being checked as they come down Jubilee Way...checked and then it appears ..sent to the back of the overall queue. I'm not entirely sure how it works generally but this Jubilee route does not appear to gain easier access. Tiresome job for those tirelessly checking.
The image below was shown on the BBC news earlier. Calais in Chaos...a tough day for all travellers for sure.
More info on the Sea News page.