Fig. 3
From: Kuala Lumpur train collision during the COVID-19 pandemic
Schematic illustration of the train within the tunnel. The tunnel was 25.7 m under the ground. It was relatively dark, but there were light sources every 8 m (A). A narrow (0.6 m) maintenance walkway corridor was available on one side of the tunnel (B) that was used to carry the patients off the train (C)