Manzul Kumar Hazarika 
  
Due to high cost, limited coverage and huge computational resource requirement, SPIN-2 data may not be suitable for 
using in Asian Highway of 90,000km in length, even though it identifies a road distinctly and estimates its width with a 
maximum error of 2m in all four types of roads considered in this study. ADEOS Panchromatic data and SPOT 
Panchromatic data can identify the roads having width of 64m, 35m and 15m distinctly. Among these three kinds of 
roads, maximum error in width measurement is found in the case of 64m wide road, using ADEOS Panchromatic and 
SPOT Panchromatic data and it is 6m and 8m in analog and digital methods respectively. Data of such a resolution is 
comparatively cheap and covers a large area repetitively, therefore, it will be very useful for Asian Highway. ADEOS 
Multispectral data and LANDSAT TM data has capability to identify a road up to a minimum width of 35m, but can not 
estimate the width of a road closely to its actual width. Extracted road information from satellite data will be also useful 
for cross checking the accuracy of the highway database available with some of Asian Highway member countries of 
the UN-ESCAP. 
REFERNENCES 
United Nations, 1998. Asian Highway, Joint ESCAP-Japan Symposium on Highway Development, ST/ESCAP/1829, 
Sales No. E.98.ILF.72, New York. 
  
372 International Archives of Photogrammetry and Remote Sensing. Vol. XXXIII, Part B3. Amsterdam 2000.