How Network Rail plans to fix Lewisham's dreaded signalling delays
Briefly

The Lewisham railway upgrade involves a £250 million investment from Network Rail to replace outdated signalling and tracks. Approximately a third of all Southeastern trains pass through this area, causing notorious delays due to signalling problems. The existing 1970s signalling system, which is no longer able to meet increased rail traffic demands, will be largely replaced, with a £90 million focus on interlocking equipment and controls. The project includes around 120 personnel working to ensure a more reliable signalling system that reduces faults and improves operational efficiency.
The Lewisham upgrade is a £250 million investment to address signalling issues, reflecting a larger trend of increasing rail traffic and age-related infrastructure challenges.
Despite the 1970s signalling system being state of the art at its installation, it has become overwhelmed by increased rail traffic demands over recent decades.
Network Rail is replacing the obsolete signalling system, investing £90 million in new interlocking equipment and controls designed to improve reliability and reduce faults.
The project's workforce consists of around 120 individuals, with fluctuating numbers based on specific railway needs and scheduled maintenance activities.
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