How realistic would it be to construct a tramway between Brighton and Worthing or Chichester and to close the national rail stations between Hove and Worthing? Losing direct London trains is unlikely to be popular in Portslade, Shoreham or Lancing, but if it could speed up Brighton – Littlehampton, Chichester and Hampshire journeys, I'd argue it would be worth it, especially if through tickets could be provided and interchange at Hove, Brighton or both could be kept simple. Worthing has the 1535th best performance with one in eight trains at least five minutes late, according to On Time Trains, which doesn't suggest that the current situation works particularly well. Further west, Chichester – Bognor Regis is the second most common journey in Great Britain without direct trains**, so I think a tramway there would at least be used, although I don't know how difficult it would be to build.
* By 'towards London', I'm adding up Victoria, London Bridge, East Croydon, Clapham Junction, Gatwick, Haywards Heath, Burgess Hill, Hassocks and Preston Park. By Brighton – Worthing, I'm adding up Brighton, Hove, Worthing, Portslade, Shoreham and Lancing. Annual journeys:
** The actual most common is apparently Stirling – Glasgow Central, which seems like an error with Glasgow stations allocation. Liverpool Lime Street – Edinburgh's the most common excluding that, but not vice-versa due to the 19:11 via Newcastle providing a (very limited) direct service.
* By 'towards London', I'm adding up Victoria, London Bridge, East Croydon, Clapham Junction, Gatwick, Haywards Heath, Burgess Hill, Hassocks and Preston Park. By Brighton – Worthing, I'm adding up Brighton, Hove, Worthing, Portslade, Shoreham and Lancing. Annual journeys:
| Towards London | Brighton – Worthing | |
| Portslade | 150,000 | 157,000 |
| Shoreham | 130,000 | 272,000 |
| Lancing | 60,000 | 227,000 |
** The actual most common is apparently Stirling – Glasgow Central, which seems like an error with Glasgow stations allocation. Liverpool Lime Street – Edinburgh's the most common excluding that, but not vice-versa due to the 19:11 via Newcastle providing a (very limited) direct service.