sentences:  Independently from these steps, as Tokyo's urban growth again took up pace during the postwar economic miracle and most of the main island part of Tokyo "Metropolis" became increasingly core part of the Tokyo metropolitan area, many of the other municipalities in Tokyo have transferred some of their authority to the Metropolitan government.For example, the Tokyo Fire Department which was only responsible for the 23 special wards until 1960 has until today taken over the municipal fire departments in almost all of Tokyo.A joint governmental structure for the whole Tokyo metropolitan area (and not only the western suburbs of the special wardswhich are part of the Tokyo prefecture/Metropolis") as advocated by some politicians such as former Kanagawa governor Shigefumi Matsuzawa has not been established (see also Dōshūsei).