Since its inception in 2010, the BML2 Project has evolved and even now is being further developed and enhanced.

Its principal aim is to substantially improve and enlarge the South East’s rail network by introducing new main lines whereby more services into London may operate. These new services would also usefully connect counties on both sides of the Thames by passing through the rapidly expanding eastern side of the capital.

So, despite what its name suggests, it is also a great deal more than just relieving pressure on the country's busiest and most congested rail route – the London-Brighton Line. Additionally, BML2 would not only be of great benefit to hard-pressed commuters, but would also restore valuable strategic rail links across Sussex, Surrey and Kent.

The Sussex Phase of the BML2 Project can be summarised thus:-

Restoration of Sussex’s second-most important main line. This requires reopening the seven-mile ‘missing link’ between Uckfield and Lewes to provide a new direct route from Eastbourne, Seaford & Newhaven to London via Uckfield.

The construction of Ashcombe tunnel beneath the South Downs to deliver a fast, direct link into the City of Brighton & Hove, thus making it possible to operate many more trains between London and the Sussex Coast.

Put Falmer – the home of Brighton & Hove Albion (Amex stadium) and the University of Sussex – on a main line to London. This would make these important and expanding destinations more accessible from Sussex, Surrey, Kent, London and East Anglia.

Considerably reduce pressure on the Brighton Main Line to provide better conditions for travellers rather than forcing people to stand in crowded aisles for long parts of the journey.