(c) Mathematical analysis : 
It measures the vertical distance from each vertex of the parcel to the edge of 
the road. The distance to each selected target is measured accordingly. 
(d) Overlay analysis : 
It overlays the parcel with planning map in order to determine the exact 
location of the parcel. 
(e) Buffer : 
It is to analyze the nearest node to the parcel. The node is then used as the 
starting point in network analysis. The analysis uses the centroid of the 
parcel as the center and search for the nodes within a radius of 50 meters. 
(f) Network analysis : 
It is to analyze the accessibility of the parcel. It uses the center line of road 
as the base, then measures the shortest distance between the parcel and the 
selected target. 
(g) Program writing ° 
It applies ARC/INFO AML to integrate and connect other analysis systems 
and to conduct mathematical calculations, such as, parcel depth, and 
regression. 
B. Data Analysis 
The data analysis procedure is shown in Figure 3-1. 
PARCEL IDENTIFY 
| 
PARCEL/BLOCK ANALYSIS 
COVERLAY) 
ETS 
ROADS ANALYSYS | BUILDING BLOCK RATE 
ANALYSIS 
1 / 
AE NETWORK START POINT 
he width of read 
A x SR 
MATHEMATICS 
CALCULATION : NETWORK ANALYSYS 
(SCALAR) : 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
       
  
    
    
   
3 
4 ‘Route distance“ : 
he parcel depth 
€ X4. 
(X3^ XA: X5 
X6» X8» X9 
X 
Figure 3-1 The data analysis 
181 
International Archives of Photogrammetry and Remote Sensing. Vol. XXXI, Part B4. Vienna 1996