Extreme heat in the Île-de-France region has left passengers and drivers suffocating in public transport vehicles lacking air conditioning [1, 2].
This crisis highlights the vulnerability of the Parisian transport network to climate extremes, where aging infrastructure and a lack of cooling systems threaten public safety during heatwaves.
On July 1, 2024, the region faced a red heat alert as temperatures climbed to 46°C [2]. Passengers in buses, metros, and trains reported unbearable conditions, with some describing the experience as suffocating [1]. One commuter said, "C’est aberrant, il fait trop chaud."
Bus drivers faced similar hazards. One driver recounted working a shift of seven hours and 30 minutes in 46°C heat [2]. He said, "J’ai conduit pendant 7 h 30 sous 46 °C, c’était l’enfer."
The heat also impacted rail services. Starting June 18, 2024, the SNCF began canceling trains to mitigate the risks posed by the weather [3]. The railway operator said these disruptions were due to a combination of extreme temperatures and deteriorating equipment [3].
A spokesperson for the SNCF said, "Nous sommes contraints de supprimer des trains à cause de la chaleur et du vieillissement de l’équipement."
The lack of air conditioning across a significant portion of the vehicle fleet has exacerbated the situation. As temperatures hit record levels, the absence of climate control in older carriages and buses transformed daily commutes into health risks for thousands of residents and tourists in the Paris region [1, 2].
““C’est aberrant, il fait trop chaud.””
The failure of the Île-de-France transport network during this heatwave underscores a critical gap between current infrastructure and the increasing frequency of extreme weather events. The reliance on aging equipment, combined with a lack of widespread air conditioning, creates a systemic risk where public services can no longer guarantee basic safety or reliability during summer peaks.
