UK Bus Drivers Report 40C Cab Temperatures as Heat Safety Debate Grows

National Express bus drivers in the West Midlands report cab temperatures hitting 40C, fuelling wider UK debate about workplace and school heat safety.

Bus drivers working for National Express in the West Midlands say conditions inside their cabs reach 40C during heatwaves, describing the environment as 'unbearable' and raising concerns about both employee and passenger safety. Drivers reported physical symptoms consistent with heat stress, with one describing a shirt 'wringing' with sweat during a shift. The accounts from drivers form part of a broader conversation in Britain about whether workplaces and schools are adequately equipped to protect people during increasingly frequent extreme heat events. Letters published alongside the reporting highlight two further pressure points: employers' legal and practical obligations to safeguard staff, and the specific risks faced by children in school buildings not designed for high temperatures. Public health voices in the discussion point to research linking extreme heat to poor mental health outcomes, in addition to the more widely recognised physical risks. Letter writers including Dr Alessandro Massazza, Sean Smith, and Woody Caan argue that solutions exist and that the UK needs to act rather than treat heat deaths as inevitable. Britain has no statutory maximum workplace temperature, a regulatory gap critics have long highlighted.

Why it matters

Extreme heat is already causing deaths in Britain, and the country lacks a legal maximum workplace temperature, leaving workers in vehicles, schools, and other unventilated environments without guaranteed protections. As heatwaves become more frequent, the gap between existing safety frameworks and real working conditions is drawing increasing scrutiny.

Key facts

• National Express bus drivers in the West Midlands reported cab temperatures reaching 40C during heatwaves
• Drivers described buses as 'unbearable,' citing both employee and passenger safety concerns
• The UK has no statutory maximum workplace temperature law
• Dr Alessandro Massazza cited research linking extreme heat to poor mental health outcomes, not only physical harm
• Concerns were raised separately about overheated school buildings putting children at risk
• All three sources appeared in The Guardian, including two as reader letters and one as reported workplace testimony

Bias & framing notes

All three sources are from a single outlet, The Guardian, which limits independent corroboration. Two of the three pieces are reader letters rather than reported journalism, meaning the claims reflect the views of named correspondents rather than independently verified facts. The reporting leans heavily toward the case for stronger regulation, and no response from National Express, government officials, or employer representatives is included in the sourced material, leaving the stated rationale field empty due to absence of any official or opposing position in the sources.

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