THIS PAPER DEVIDES THE RESIDENTIAL-INDUSTRIAL MIXED USE BLOCKS INTO TWO TYPES ; HIGH DENSITY BLOCKS AND LOW DENSITY BLOCKS, AND CLOSELY INVESTIGATES ON THE CHANGE OF LAND USE FROM 1967 TO 1987. AT THE FORMER. THE NUMBER OF WHOLE BUILDING GRADUALLY INCREASED, AND AT THE LATTER. MAINLY DURING THE PERIOD FROM 1978 TO 1987, LARGE FACTORIES WERE REPLACED WITH SMALL FACTORIES OR HOUSES. THE CHANGE WHICH TOOK PLACE IN EACH TYPE CAUSED HIGH DENSITY AND PRODUCED FACTORIES WITHOUT ACCESS TO ANY STREETS, MAKING THE MIXTURE MORE COMPLICATED.
