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to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
https://creativecommons.org/licenses/by/2.0CC BY 2.0 Creative Commons Attribution 2.0 truetrue
MTA New York City Transit readies work equipment at the 38th Street Yard in Brooklyn in advance of a snow storm on Thu., January 2, 2014.The yard's switches are manually operated.Photo: Marc A. Hermann / MTA New York City Transit