Due to high temperatures, speed restrictions have been imposed on some lines due to ‘the design of the overhead line equipment’.
National Express East Anglia’s hourly service from London to Ipswich will be cancelled from 1202 whilst others will terminate at Colchester.
The company said they intend to operate a full peak time service but many trains have been cancelled.
National Express East Anglia say the affected equipment is subject to major renewal which ‘will prevent the need for speed restrictions in the long term’.
Speeds on the London to Norwich Great Eastern line could be reduced by up to 30mph ‘in the hottest part of the day’, meaning more services could be delayed.
