Those travelling by train are being warned to plan their journey in advance for the next nine days as disruption between Southampton and Portsmouth begins tomorrow.
Weekend closures between Southampton Central and Bournemouth are also set to impact main line services, with buses replacing all trains from Southampton on Easter Sunday.
Starting tomorrow, buses will replace trains between Eastleigh and Southampton Central, and between Southampton Central and Fareham.
Services between Southampton Central and Salisbury, Bournemouth, Poole and Weymouth will be revised.
READ MORE: Easter: Southampton Central, Portsmouth trains disrupted
On April 13, buses will replace trains between Southampton Central and Bournemouth, Eastleigh and Fareham, and between Brockenhurst and Lymington Pier.
From April 14 to April 18 (Good Friday), buses will replace trains between Southampton Central and Fareham, calling at all stations.
On April 19, buses will replace trains between Southampton Central and Fareham, Southampton Central and Bournemouth, Brockenhurst and Lymington Pier, and Romsey and Southampton Central via Redbridge.
On April 20, buses will replace trains between Eastleigh and Bournemouth, Brockenhurst and Lymington Pier, Romsey and Southampton Central via Redbridge, and Southampton Central and Fareham.
Finally, on April 21, all lines will reopen but a Bank Holiday service will be in operation.
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