Starting from December 15, Southeastern will be launching a new timetable with an additional 220 services added every week to certain lines running through Kent and London.
Customers are being advised to check routes before travelling in December, as the timetable undergoes adjustments while the services are being implemented.
Among the changes, 12 Cannon Street services will be added at peak times on the Woolwich and Sidcup lines, along with additional trains which will run between London Victoria and Orpington.
Woolwich line
12 additional Cannon Street Rounder services will run via Greenwich and Sidcup in both directions during morning and evening peak times, and will stop at all stations except Lewisham.
More services will also run between Slade Green and Cannon Street via Woolwich during peak times.
Woolwich Dockyard, Erith and Belvedere will also have six trains an hour at peak times, and there will also be eight trains an hour at peak times at Charlton, Woolwich Arsenal, Plumstead, Abbey Wood and Slade Green.
Trains between Abbey Wood and Dartford will run at 15-minute intervals.
Bexleyheath and Sidcup lines
On weekdays, trains between Dartford to Charing Cross will depart 11 minutes earlier at 5:12am.
On the weekdays, an additional 6:27am service will also run between New Cross and Cannon Street via Bexleyheath and Greenwich and will call at all stations.
An extra 5:05am service from Dartford to Charing Cross will also run on weekdays with a 32-minute gap, calling at all stations via Sidcup and Lewisham.
London Victoria to Orpington via Herne Hill
Extra trains will run from Monday to Friday during off peak and evenings, with four trains running per hour at 15-minute intervals.
Four trains will run an hour into London Victoria between 6:03am until 11:33pm and four trains will run from Victoria between 5:57am and 11:27pm.
High Speed – Dover Priory to London St Pancras
A high-speed service will run at the earlier time of 5:54am from Dover Priory to St Pancras on weekdays.
Medway Valley – Strood to Tonbridge
The 7:33am and 8.05pm Strood to Tonbridge services will start a minute earlier, with additional dwell time at New Hythe and Aylesford to accommodate school pupils.
Ramsgate to London Charing Cross
The 8.44am Ramsgate to Charing Cross service will run at 8.42am, calling additionally at Chartham and Chilham.
London Charing Cross to Ashford International via Maidstone East
The 9.29pm and 10:29pm London Charing Cross to Maidstone East trains will run to Ashford International on weekdays, calling additionally at Bearsted, Hollingbourne, Harrietsham, Lenham and Charing.