in the train during the experimental period. While in its experimental period, the automated train was only operating during rush hours. In July, the test was extended for three more months, and in October the test was extended for six additional months. The chairman of the NYCTA, Charles Patterson, was disappointed by the automated shuttle train, doubting that the train could be operated without any transit personnel on board. Initially, the automation of the shuttle was expected to save $150,000 a year in labor costs; however, with one employee still required on the train, there would essentially be no savings. Tape recorded messages warned passengers that the doors of the train were closing. If the test succeeded, it was planned to automate the IRT Flushing Line, the Franklin Avenue Shuttle, the Myrtle Avenue Elevated, the BMT Canarsie Line, and the Culver Shuttle. However, the NYCTA did not have plans to automate the whole system. Demise On April 16, 1964, an automated train derailed on the northernmost track east of Times Square during the morning rush hour, causing a short circuit, and thus, suspending service on all three tracks. A severe fire at the Grand Central station on April 21, 1964, destroyed the demonstration train and resulted in the subsequent restoration of manual operations. The fire began under a shuttle train on track 3, and it became larger, feeding on the wooden platform. The train on track 1 was saved when the motorman saw smoke, and reversed the train. The basements of nearby buildings were damaged. Tracks 1 and 4 returned to service on April 23, 1964, while track 3 returned to service on June 1, 1964. The reinstallation of track 3 was delayed because of the need to replace 60 beams that were damaged in the fire. Initially, a decision was not made concerning whether or not the automated shuttle train should be reintroduced. From September 19, 1966 to April 1967, service on the shuttle was limited in order to allow for the reconstruction of parts of the line. The entire project cost $419,000 and included the construction of a new mezzanine at Grand Central and the replacement of the wooden platform at Times Square with a new concrete one of . As part of the project, the tiles damaged by the smoke from the fire were replaced with tiles in the city's colors of blue, white and orange, with