When they’re empty they feel vast and cavernous and lonely. At night their lights feel hotter and brighter, even though they’re the same lights they use in the day. They’re all the lights there are. I was sprawled on a two-person bench north of the end doors on the track side of the car. The other five passengers were all south of me on the long bench seats, in profile, side on, far from each other, staring blankly across the width of the car, three on the left and two on the right.

The car’s number was 7622. I once rode eight stops on the 6 train next to a crazy person who talked about the car we were in with the same kind of enthusiasm that most men reserve for sports or women. Therefore I knew that car number 7622 was an R142A model, the newest on the New York system, built by Kawasaki in Kobe, Japan, shipped over, trucked to the 207th Street yards, craned on to the tracks, towed down to 180th Street and tested. I knew it could run two hundred thousand miles without major attention. I knew its automated announcement system gave instructions in a man’s voice and information in a woman’s, which was claimed to be a coincidence but was really because the transportation chiefs believed such a division of labour was psychologically compelling. I knew the voices came from Bloomberg TV, but years before Mike became mayor. I knew there were six hundred R142As on the tracks and that each one was a fraction over fifty-one feet long and a little more than eight feet wide. I knew that the no-cab unit like we had been in then and I was in now had been designed to carry a maximum of forty people seated and up to 148 standing. The crazy person had been clear on all that data. I could see for myself that the car’s seats were blue plastic, the same shade as a late summer sky or a British air force uniform. I could see that its wall panels were moulded from graffiti-resistant fibreglass. I could see its twin strips of advertisements running away from me where the wall panels met the roof. I could see small cheerful posters touting television shows and language instruction and easy college degrees and major earning opportunities.