strict) 
tudy of 
st this 
ographs 
in the 
tuation 
> had to 
ype and 
logies: 
wel ling 
raph on 
ear th- 
jy area: 
es were 
ng type 
  
This was discovered only after a strict inspection by 
actual field surveying in Kobe had been undertaken. 
3)-4. Analysis of remote sensing (Figure 7.): 
A great deal of time and labor was spent on analysis 
of the stereographical method of aerial photography. 
The system used was that for the examination for TM 
data, in the case of the Kobe surveying area obtaining 
an image qual ity high enough to reduce the expense of 
time and labor for the conceptional observation of 
urban land use. 
3)-5. Overlayer analysis of some mapping surveying 
as a present procedure of the following three methods 
of mapping (Figure 5,6,and 7): 
1) mapping of building types before the earthquake 
2) mapping of the urban disaster in the burned-out 
area 
3) mapping of land use by remote sensing 
The objective of this study is to evaluate the safety 
of narrow streets with a high building density by 
means of overlayer analysis, using the three mapping 
techniques mentioned above. 
  
  
  
Table 1. Key Points of Decipherment 
  
Building types 
Wooden-framed 
houses 
Non-wooden-f r amed 
buildings 
Openspace areas 
(Vacant land. Park 
  
Car park) 
Key points of Decipherment 
-Drawn by soild lines on geo- 
graphical map 
-Shapes is simple 
-Decipherment 1F & More than 
2F use stereography 
-Drawn by thick lines on geo- 
graphical map 
-More than 3F buildings wrote 
floor # on geographical map 
-Decipherment by stereography 
-Decipherment by dwelling map 
Table 2.Decipherment Rate of Building and House Type 
(Nagata District) 
  
  
  
  
  
  
  
  
  
Building Type Sample |Decipherment or Not Rate 96 
1F 4 3 1 7,5 
Wooden- (3) (1) (75) 
Frame 
2F~ 33 25 8 76 
(24) (9) (73) 
~2F 10 / 3 70 
Non- (4) (5) (40) 
Wooden- 
Frame 3F~ 32 29 3 9 1 
(28) (4) (88) 
Üpenspace 4 4 0 100 
Area (4) (0) (100) 
  
  
  
  
  
  
  
  
  
  
  
  
    
     
    
  
  
  
  
      
  
    
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
    
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
Ys] ese 
= eL. Ne" 
EB 
ELLO 
ee 
[S rase 
| er 
; ELT | 
Hr [ FH 
E 
  
  
  
  
Wooden - framed 1F Non - wooden - 
Hooden - framed 2F— ESS framed ~2F EEE 
Openspace areas Non - wooden - 
framed 3F— 
  
Wooden - framed 2F~ SS 
Openspace areas 
  
  
  
Wooden - framed 1F Non - wooden - 
Non - wooden - 
  
   
   
  
  
  
framed —2F 
  
  
framed 3F— L——] 
  
Figure 2-1 Map of Decipherment 
in Nagata (Before) 
367 
Figure 2-2 Map of Decipherment 
in Nagata (After) 
Fire stop line t 
Spred of fire course comedi 
Out break of fire 
  
  
  
  
Figure 2-3 Map of Urban Disaster 
of fire in Nagata 
International Archives of Photogrammetry and Remote Sensing. Vol. XXXI, Part B7. Vienna 1996