The organisers of the London Olympic Games are warning that Londoners travelling across the capital’s transport system are bound to notice some changes during the event. Up to a third of commuters are expected to adjust their travel plans, according to the Olympic Delivery Authority.

Hugh Sumner, the ODA’s director for transport, said businesses will notice a difference and life will become a little unusual. He was speaking at a meting with the transport committee of the London Assembly. He added that the increase in the number of people travelling would differ depending on the time and area in which they were travelling; pointing out that the key to managing the extra bodies was identifying those areas and using effective methods of communication.

Some of the biggest increases in passenger numbers are expected on the Central and Jubilee lines on the London Underground as these services run to East London and the Olympic Park.

However, Mr Sumner pointed out that many people will be taking their summer holidays when the games are on, thus reducing the number of those who use the transport system for their commute. He went on to warn workers and businesses that there would be some inevitable inconvenience caused.

Mr Sumner said the biggest impact was expected in the central parts of the city and that there needed to be systems in place to explain to travellers the best way of moving around the capital and where the congestion hotspots are most likely to be at any given time.