London's Victoria Line: A Scorching Tube Nightmare

London's Victoria Line continues to be the hottest underground line, with an average temperature of 28 degrees Celsius in 2024, exceeding even the legal limit for transporting livestock. Despite Transport for London (TfL)'s significant investment in cooling technologies, including air conditioning and ventilation systems, the line's depth and unique geological conditions (deep within London clay) hinder cooling efforts. While other lines saw a 7% temperature increase since 2013, the Victoria Line experienced a near 30% rise, soaring almost 7 degrees. High temperatures persist even in winter, with temperatures never dropping below 25 degrees. With passenger heatstroke incidents on the rise, TfL faces a major challenge, and commuters might want to consider cooler alternatives this summer.