Officials have also asked companies to find ways to keep some employees out of central London and off the busy transport networks during July and August . The day after Summer Olympics 2012 is expected to be the busiest in Heathrow 's history . The airport estimates it will check through 10,000 athletes on that one day . To ease the congestion , it built a temporary terminal just for athletes . Heathrow will also allow athletes to check their passes at Olympic venues on that day .
The day after Summer Olympics 2012 is expected to be the busiest in Heathrow 's history . The airport estimates it will check through 10,000 athletes on that one day . To ease the congestion , it built a temporary terminal just for athletes . Heathrow will also allow athletes to check their passes at Olympic venues on that day .