Slubfurter Mental Map Survey 2000 - 2002: Districts are the medium to large sections of the city, conceived of as having two dimensional extent, which the observer enters  - inside of -, and which are recognizable as having some common identifying cha  racter (eg. city center, central business district, shopping zone, neighborhoods, villages, large city parks or wooded areas ...).(Lynch 1960: The Image of the City)