How do you eat an elephant?...one small bite at a time. Golder describes the complex works methodologies and innovative design solutions developed to introduce step-free access to one of London's oldest, busiest inter-modal stations in what appears to be an inverted safety-critical game of Jenga.Elevator (lift) shafts were constructed through Overground rail platforms, between the now-exposed underground platform tunnels whilst the station remained in full operation, the complex 3D geometries only made feasible by the adopted methodology. By adapting and modifying the legacy assets they were safeguarded while providing greater capacity, connectivity, accessibility and an improved passenger experience.A $25M project with multiple challenges and complexities, one that will deliver a hugely improved travelling experience for millions of commuters, residents and tourists. Golder provided full design and construction methodology delivering this demanding project achieving step-free access to one of the oldest and busiest London Underground stations. It has all the hallmarks of an intricate mining project, a series of careful excavations undertaken invisibly within a folly operational inter-modal station. Construction of the elevator shafts was carried out between the live Overground Rail and Underground tracks, exposing and installing temporary, then permanent, supports against the running Underground platform tunnels.
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