The district has a literacy of 76.90%, higher than the state 
average. 
1.2. Thiruvallur Town 
Thiruvallur is about 44 km from Chennai in Tamil nadu 
with a population of 1300000 , covering 10 sq km area, 
near our college and which was once a Sub Division, i.e. 
Taluk head quarters in Thiruvallur District till 1991. 
Population density of Thiruvallur has more than doubled in 
the past three decades. The town a population density of 
300 persons/sq.km in 1951, population density rose to 6000 
persons/sq.km in 1981 and 8600 persons/sq.km in 1991 
and it has crossed 13000 per sq km in 2011 
1.3.Enviroinmental issues 
Due to creation of District administrative, police and 
judicial head quarters of Government Departments, major 
industries like Caterpillar, Kingfishers. Hindustan Motors 
etc and up gradation of it as District Municipality resulted 
in addition of urban infrastructure, drainage, conversion of 
Agriculture land and lakes as housing colonies etc The 
sewage also some times drains in tanks in rainy season. The 
lands near water spread are developed as housing plots 
disturbing the natural drainage system. The new housing 
colonies are flooded even for small intensity of rain fall. 
The urbanization of the town and villages which had 
narrow lanes developed for bullock carts movement are 
used by motor vehicles and two wheelers. Under ground 
drainage schemes are now under implentation in Tiruvallur. 
Till then the town has to depend on disposal of Night Soil 
is normally by way of individual facilities and liquid waste 
(Sullage and Kitchen Waste) is through the open drains. 
The main mode of individual disposal in the town is 
through 4613 septic tanks, low cost sanitation units and 
through public conveniences. There are 11 Private hospitals 
with 6 to 11 wards apart from Govt District hospital, 8 
Medical Labs, 20 Pharmacy, Blood banks, Eye banks, 
Ambulance in Govt and Three private hospitals. 
2. RESEARCH 
Waste water disposal, drainage problems in the event of 
rains, encroachment of tanks, stagnant water bodies which 
are the breeding ground for mosquitoes and insects, 
interference to ancient planning of this religious historical 
towns and villages by haphazard modern housing urban 
development are studied and highlighted in this paper to 
demonstrate the use of high resolution data for creation of 
environment management GIS.The study has been taken up 
to understand the environmental issues to protect these 
areas. This research has been taken up using Cartosat 1 
LISS 4 MSS data of Resourcesat 1, Google earth Geo eye 
data.The high resolution Indian satellite data are used for 
urban planning and creation of GIS for health, 
environment, town planning, and drainage system 
2.1.Cartosat and Liss IV Resourcesat data 
An attempt has been made to demonstrate the use Indian 
satellites data merged Cartosat 1, PAN 2.5m resolution 
stereo data dated 27^" March 2007 with Resourcesat, Liss 
4, 5.8 m, Resolution multi spectral data dated 11 Jan 2005 
to create high resolution imagery of part of Thiruvallur 
town and it’s neighborhood. The Google earth Geo eye 
data is used to update the latest land use as on 2011.The 
segment covering the part of Thiruvallur town in Tamil 
  
   
     
    
   
    
   
   
    
  
  
  
  
  
  
  
  
  
  
  
   
   
   
   
   
  
    
     
   
     
   
   
    
   
  
   
   
   
    
    
   
  
   
   
   
   
    
    
    
  
International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Volume XXXIX-B8, 2012 
XXII ISPRS Congress, 25 August — 01 September 2012, Melbourne, Australia 
Nadu from the Temple Tank of Sri Veeraragavasamy 
temple to West of National Highways from Thiruvallur to 
Tirupathi is selected for the study (Fig 1) to create Health 
GIS to demonstrate the use of high resolution Indian data 
for local urban planning to understand the Health and 
environmental problem areas to take remedial action by 
concerned. 
y Tiruailur North vvest- 
+ 
Cartosat *Liss 4 merged data 
    
  
Figure.1.Segment of the PAN &LISS 4 merged image of 
study area 
While Arc GIs 10 software is used to create 
different themes and Lieca photogrammetry GIS software 
is used to create the contours to add topographical features 
of the study area from the Cartosat 1 streo data. 
Resourcesat data of Liss 4 was useful in mapping with ease 
the agriculture lands and other natural resources like 
gardens, water bodies ,urban areas, roads ,paths etc as the 
data is in colour. In fact the merged data in true colour is 
very much useful in digitizing various layers to create the 
Environment and Health GIS. 
2.2. Agriculture lands & Gardens 
  
Figure.2. Agriculture and Garden Lands 
The study area has irrigated farm lands of paddy, mango 
groves and tree plantations areas apart from dense 
populated urban area.These two layers are given in fig 2. 
The irrigated agriculture lands and grooves have stagnant 
water in rainy season and irrigated paddy season. These 
areas are breeding grounds of insects and mosquitoes etc 
and creates problems like fever and cold. The irrigated 
agricultural lands also have reptiles like snakes which 
causes hazards like snake and insects bites. The undulating 
terrain condition adds to the surface drainage problems and 
   
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