QUEENS — A person was struck by a train in Queens Friday morning, prompting service changes for several subway lines. The person was struck at Jackson Hts-Roosevelt Av., according to the Metropolitan Transportation Authority. His or her condition is not yet known. Delays are expected on the E, F, M, Q, R and No. 7 train. The following service changes are in effect: There is no M train service between Essex St and Forest Hills-71 Av in both directions. Northbound E […]