To prepare for this service , rush hour service was simulated twice on Saturdays during the previous spring . The first time , the '' ' V ' '' , labeled as '' 'S ' '' , ran via 63rd Street , the '' ' F ' '' ran via 53rd Street , and the '' ' G ' '' ran to 179th Street . It was particularly done to see if the '' ' G ' '' train could be kept along Queens Boulevard . When this test became unsuccessful , the '' ' V '' '' s eventual service pattern ( via 53rd Street ) was tested on September 8 , and was a success . Due to the September 11 attacks , implementation of this service was delayed for 3 months
September 11 attacks
September 11 attacks
V (New York City Subway service)