Power |
Telecom |
Transport |
Others
Information system for rural road network planning - A case study
Figure -1 highlights the various data requirements of Village and Road Information System (V&RIS)
 Figure 1. Flow Chart for Village and Road Information System A Case Study – Rupauli Block Database developed above has been applied in the Rupauli Block in Purnia District of Bihar, out of the total population which has a total geographical area of 105.41sqkm Rupauli is the Block headquarters and the only town in the Block. The Block has 51 villages with a total population of 141814 as per 1991 census. Out of this SC/ST population is 10.6 per cent. The literacy ratio is 23.4 per cent. Out of the total population 37.7 per cent are workers, out of which are 26 per cent agricultural labourers and 11.7 per cent cultivators. The industrial activities are negligible. VRIS for Rupauli Block A Village and Road Information System (V&RIS) has been developed for Rupauli block with all the data and information as mentioned above. The development of V&RIS can further be used for development of network as well as for infrastructure development. Once the V&RIS is ready, the physical locations of infrastructure facilities and utilities may be planned and translate all the technological developments on the ground in a systematic manner. Map preparation and Database Map forms the fundamental tool for road network planning. A base map with all features has been prepared in the scale of 1:50,000 in GIS environment. A base map with the location of all the village settlements and existing road network has been prepared with the help of toposheets, census maps and PWD road maps. The map has been digitised with number of layers, (i) boundary layer, (ii) village location as point layer, (iii) the existing road network as line layer and (iv) Waterway layer. A base map of Rupauli Block showing the location of village settlements, block boundary, total road network and the rivers, canals etc is presented in figure-2. Village Level Data The village level information data available from the census of India (1991) record on village directory and population data has been attached with the point layer as shown in figure-3. The map shows the location of the villages, census code and village level data. Rural Road Inventory The road inventory data is essential for planning, management of the road system and planning of rural connectivity. The road inventory data is attached to the road layers. A GIS based map of the existing road network along with road inventory data of selected links is shown in figure-4. Thematic Mapping Thematic mapping provides graphical presentation of access characterization. The thematic map generated for education facilities such as primary schools, middle schools, high schools is presented in figure-5. The figure shows that almost all the villages are having primary schools, 20 villages have middle schools along with primary schools and 4 villages have high schools along with middle and primary schools. This presentation will be useful for spatial distribution of the facilities. But most of the villages do not have good access (road facility) to these middle school and high schools. Through thematic mapping of identification, distribution of potential growth centers spread in the entire area can be viewed at a glance.  Figure 2. Base Map of Rupauli Block  Figure 3. Village level database of Rupauli Block  Figure 4. Map showing existing roads and inventory data  Figure 5. Thematic map of education facilities Rural Road Network Planning Optimum network is developed based on the functional accessibility approach for providing a single connectivity in an optimal way by considering the already developed network pattern and also the socio-economic development that taking place in the rural area. This approach has been applied through a case study area by using GIS tool. Network Link Options The available options of connectivity for villages shall be guided by certain assumptions as given below in order to develop a road network, which adequately meets the accessibility requirements of the unconnected habitations.
|