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In the 70s & 80s, it was quite common in the NYC Transit system, the subways to be more specific, but it was also lethal, as many of the taggers got "tagged"(aka hit and killed) by the IND, IRT or BMT subway trains as they tagged cars in yards or while stopped at stations.

SW-User
@soar2newhighs wow...so not anymore?
No, not at the level it was back then, though it can still be seen.@SW-User