The city not only expanded to the outside, out also 
developped to the space. According to the results of 
photointerpretation, the height of buildings in 
Hanyan increase continuonsly since 1950s. In 1950s, 
the residencial buildings were almost the low 
brick-wood slope buildings which could be distinguished 
easily in the airphotos. High residential buildings 
were built between 1965 and 1977* And the number of 
floors of new residential building increase between 
1 977 and 1981 (Fig 2 ). 
Fig 2. The percentage of the new buildings with 
different floors (height) from 1965 to 1981 
(measured from airphotos). 
Table 2. The^area of built area in sequential years 
(km ) (measured from urban change maps). 
Year 
1955 
1965 
1977 
1981 
Built Area 
6.11 
I5.5O 
17.21 
20.92 
Table 3. The percentage of different landuse to the 
total urban area (measured from urban change 
maps). 
Year 
Type 
1965 
1981 
Industry 
22.5 
28.1 9 
Store 
4.43 
6.62 
Traffic 
9.69 
8.62 
Public facility 
4.41 
9.56 
Residential 
15.58 
18.47 
Water 
9.51 
9.73 
Green land 
10.45 
4.65 
Vegetable plot 
14.61 
4.65 
others 
8.82 
6.84 
Table 4» Series of Hanyan's Urban Change Maps 
Compiled with Sequential Airphotos (scale 1:10000). 
No 
Map 
Main contents or classification I 
1 
Urban landuse 
(1955, 1965, 
1977, 1981 ) 
Industry, store, residential 
landuse, public facilities, 
infrastructure, roads and 
greenland, water, vegetable, 
agricultural landuse etc. 
2 
Residential 
change 
Structure, material, floor 
number & year of set up of 
every residential building; 
Increase or decrease of resi 
dencial buildings 
3 
Industical 
landuse 
change 
Spatial distribution of the 
present industral branches; 
Limits of industrial landuse 
in the sequential years etc. 
4 
Traffic land- 
use change 
Traffic network of the sequen 
tial years; 
Type of pavement, order of 
roads, etc. 
Increase or decrease of roads 
5 
Garden and 
green land 
change 
Spatial disitributions, species 
of green land of the sequential 
years; 
Transformational relationship 
with other urban landuse (For 
instance, green land changes 
into industries etc.) 
6 
Suburb agri 
cultural land- 
use change 
Spatial distribution of the 
nonirrigated farmland, vegetable 
plot, paddy field in the 
sequential years; 
Transformation with other land- 
use (For instance, the nonirri 
gated faim lands changes into 
vegetable lands, the vegetable 
polts change into residential 
use etc.) 
7 
Water change 
Boundary of water (rivers, 
lakes) in the sequential years) 
Transformation with other land- 
use (water body change into 
industrial landuse, the paddy 
fields change into dishponds 
etc .) 
8 
Population 
density 
Spatial population density 
distribution in the daytime 
and in the night (represented 
in different classes) 
9 
Urban pollu 
tion 
Types and Spatial location of 
urban pollution sources 
(such as chemenies, escaped 
wasted water, solid waste etc. 
Spreding way and influence of 
the waste disposals 
10 
Public 
facilities 
Spatial location -of public 
facilities and the relation 
ship with other urban land- 
uses 
11 
landscape & 
Touristic 
re resources 
Spatial location of the main 
landscape and touristic spots; 
Relevant facilities to tourism, 
Influence of urbanization to 
landscape and touristic in the 
past years 
12 
Execution of 
urban master 
planning 
(1965-1977, 
1977-1981 ) 
Non confirmed area (non planned 
urban,use); 
Differences between planned 
landuse and real landuse in 
the planned area