3.0 Development of GIS
The data (Spatial and non-spatial) has been collected from Shri Angalamman College of Engineering and Technology. This institute has been started 12 years back, but they have not been maintained the full-fledged map duly showing the infrastructure facilities and potentials are available. For want of such maps the study could not be intended in straight away. For which a map considering the real fact and figures has been drawn. The map was scanned and exported to digitizing software R2V to digitize the map. The digitized map is exported as shape file format to ARC VIEW GIS software for analysis. The various themes included in this study are:

1. Roads
2. Electrical power supply
3. Telecom lines
4. Drinking water supply and pumping units
5. Buildings (Class rooms, Temple, Hostel and Laboratories)
6. Play fields
7. Boundary
8. Testing equipment's locations in a lab

These themes are explained in detail in the following sections.

Fig. 1. SACET Campus Map (Not to Scale)
3.1 Land Use Details
The lands used for various purposes are given in Table 1 and the same are also shown in Fig. 2 in location wise. Though this institute has a plenty area of which, 50 percent has been utilized. As per the Tamilnadu government land-sealing act the unused lands must be handed over to the government, but this institute has a proposal for new Polytechnic College and designed to build up the additional structure in the vacant area.

Fig. 2. Landuse Details of SACET

Table 1 Land Use Details

Sl. No.	Land Use	Area in Sq.m	Percentage
1.	Total Built up area (Excluding Road Area and Play Fields)	23037	3.67
2.	Class Rooms	1775	0.28
3.	Administrative area	12070	1.92
4.	Auditorium	400	0.06
5.	Laboratories	6067	0.97
6.	Toilets	400	0.06
7.	Power Rooms (2 Nos.)	110	0.02
8.	Canteen	120	0.02
9.	Miscellaneous (Temple, Ladies Room, etc.)	200	0.03
10.	Hostel	1895	0.30
11.	Play ground	17880	2.85
12.	Roads	24636	3.92
13.	Proposed Buildings	160119	25.52
14.	Utilised Area	248709	39.64
1.	Utilised Area	248709	39.64
2.	Remaining Area	378576	60.36
3.	Total Area	627285	100.00

3.2 Roads
At present, the roads are not laid with any road metals and it is proposed to construct asphalt pavement road. The total length of existing road is 2.05 km with a road width of 12 m. The soil available in this area is hard red soil, so the WBM road is laid for a depth of 50 cm. Still lot of area of the campus is not connected with roads. The areas connected with roads are shown in Fig 3.

Fig. 3 Road Network in Study Area (SACET)
3.3 Water Supply
This campus requires totally 7000 litres of water, totally per day. This demand is met from 8 bore wells and 6 fibre (syntax) water tanks. The bore well water is mainly used for cleaning and washing purposes whereas the 6 fibre water tanks are mainly used for drinking purposes. Fibre water tanks are filled from water supply lorry, which collects water from Cauvary river basin within 20 km away from our college. The locations and area of distributions of this bore wells and tanks are shown in Fig. 4 and the corresponding attribute data are also presented in the same figure. The existing bore wells distribute in their respective area and due to the failure of any one bore well, it will affect the system of water supply in this existing system. By adopting the GIS technology, the area which were not connected are identified and that is shown in blue color in the Fig. 4 Approximately a length 313.6 m pipe line is required to make the integrated water supply system for this campus. The management has also proposed to construct a single overhead tank of large capacity to meet out the demands.

Fig. 4 Water Supply System and Pumping Units (Bore wells)
3.4 Intercom Lines
This engineering college has got 5 telephone lines for communication with outside the campus. These lines installed in the following places: (i) Director Room, (ii) Principal Room, (iii) Office Room (Public Phone), (iv) Internet lab for internet connection and (v) Hostel. A sum of US $ 500 to 550 is the range of charges towards this purpose. At present the total number of intercom points are 24 for communication within the campus. This number is not scattering the needs of the campus, hence it is proposed to add 24 more intercom points. The locations, which intercom lines are connected and not connected (Hostels, Security Room, Physical Director, Canteen, etc.,) are shown in Fig. 5.

Fig. 5 Intercom Line and its Locations

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