Engineering work is taking place in the Littlehampton area, closing all lines.
Buses will replace trains between Angmering and Littlehampton and between Littlehampton and Barnham.
Trains which usually run between London Victoria and Littlehampton will be diverted to run between London Victoria and Barnham.
Trains between Brighton and Portsmouth Harbour will run to an amended timetable.
Journey times will be increased when using replacement buses.
Check before you travel:
You can plan your journey using the National Rail Enquiries Journey Planner
Replacement Bus Travel Advice:
For helpful advice if you need to travel on a rail replacement service, including accessibility and bicycle information, please use our Rail Replacement Services page.
You can find the pick-up and set-down location of rail replacement services by checking station signage or by searching for your station on our Find a Station page.
Please be advised that replacement vehicles may be busier than usual, and you should allow extra time for your journey.