Sweating it Out: Surviving the Subway's Heat and Humidity.

Some New York City subway cars, like Car 1859 on the No. 1 line, have experienced air-conditioning problems, leaving riders to endure sweltering conditions in the heat and humidity. While the Metropolitan Transportation Authority states that the air-conditioning on nearly 6,000 subway cars works 99.4% of the time, those unlucky enough to be in a hot car on a hot day find the experience unbearable. The M.T.A. is purchasing new subway cars with automatic temperature sensors, but in the meantime, riders are encouraged to report hot cars for repair, which can take between one and six hours.