@amazeifystore: A green signal can still hide a deadly failure. At Clapham Junction, faulty relay rewiring created a false clear, leading to a collision that killed 35 people. The inquiry exposed how weak testing and supervision let the error go unnoticed. What’s the most important safety lesson here? #ClaphamJunction #RailwaySafety #EngineeringLessons #SafetyEngineering #RailSafety #SystemsEngineering #HumanFactors