The Brighton Main Line (BML) and the Tonbridge Main Line (TML), shown below, cannot
support any more trains. Even though the 2015 Thameslink Programme will bring longer
(12-car) trains to the busiest services, the Department for Transport (DfT) warns:
“This will be a useful medium-term contribution to BML capacity but will not, on its own,
provide a long-term solution.”
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