Methodological framework:
Transportation network is a spatially designed stationary system to act as a framework for the non stationary activities. The road network has been developed in a 4 level seggregated pattern. Each level is incorporated in the layer form in the vector based GIS software. The layer system is developed using the following modules.
Module 1: Mapping of the existing boundaries derived from the secondary sources which include the district boundaries and the village boundaries.
Module 2: Development of the existing road network from the satellite data with the resolution of 30 m and toposheets of 1:25000 scale.
Module 3: Mapping of road network obtained from coplanar concurrent theory
Module 4: Coordination of all the above three layers to obtain the final road network
configuration and identify the missing links.
Methodological concept used in the study:
An attempt has been made to obtain the orientation of the corridor by applying the concept of "Resultant of coplanar concurrent force system" and later the road network configuration is developed using "Gravitational pull theory" and "Principle of moment" concepts. A hierarchical and optimal road network is developed scientifically based on the basic principles of physics assuming the mandal as a rigid body. The relative force of attraction in the gravitational pull theory between two bodies is used to analyse the demand potential of a particular place. The concept is justified from the fact that the attraction to a particular place is proportional to the impedance (distance) and the activities / facilities taking place (which is represented by the force / score of the particular place. This concept contributes to the development of broad based planning framework having diverse perspectives. Incorporating gravitational pull theory and principle of moment concept will involve village connectivity and will result in overall progress providing connectivity to remotest villages of the area.
Assumptions in formulating methodology :
The following assumption are made in conducting the analysis:
- Each Mandal is assumed to be acting like a Rigid body. (defined as "a definite amount of matter, the parts of which are fixed in position relative to one another")
- The Mandal Head Quarters of each mandal is taken as the Origin.
- The line of action of forces of each and every village in a particular mandal is assumed to be originated from the Mandal Head Quarters.
- The force of attraction between a Village and Mandal Head Quarters can be obtained by :
F1 =Sv * Smh /d2 v-mh
Where F1 = Force of attraction between village and Mandal Head Quarters of a particular mandal.
Sv =Score of village
Smh = Score of Mandal Head Quarters
The scores of village and mandal Head quarters are obtained by taking the demographic,
Socio-economic factors and infrastructural facilities of that particular location into consideration.
- The resultant lead obtained is assumed to serve as a corridor to serve the villages in a particular mandal.
- The moment of each village can be obtained by
Mv =Sv*d
Where Mv =moment of the village about the Mandal HQ
Sv = score of each village
d = distance of separation between village and Mandal HQ
- The moment is assumed to represent the relative importance of a village.
- The angle of deviation is measured counter-clockwise from the positive X-axis.
- Appropriate Scores are assumed for the Villages and Mandal Head Quarters whose data is missing.
Algorithmic steps for identification of road network from coplanar concurrent theory:
In general a rural area is composed of number of mandals which in turn have various villages. The methodology is briefly presented in the following algorithmic steps. The census information is used for advancing a technique for rural road network planning in a multi dimensional framework
Step 1: The various facilities available in the village are obtained form the census records and the data processing is done by assigning a set of points (Source: World bank guidelines) to the various facilities available in a village by a unique scoring pattern. Finally, a road need assessment rating shown in table 1 will be used to rank the qualifying roads to establish priority of intervention. The cumulative score of all the facilities is considered as the force of the village. These scores which are unique in nature represent the force of that particular village. In other words, it represents the relative inherent strength or potential of that village among a set of other villages, in developing its accessibility to the mandal Head Quarters. Thus the priority of that village amongst the cluster of villages is determined.
Table 1: Road Need Assessment Rating:
Source: Option for Planning, Managing and Financing Rural Transport Infrastructure- World Bank Technical Paper No : 411(Author: Christina Malmberg Calvo)
| SECTOR |
FACILITY |
POINT |
| Educational |
P: Primary or Elementary School
(up to Class IV )
M: Middle School or Junior Secondary
(Class V to VIII )
H: Matriculation or Secondary
School (Class IX and X)
JC: Higher Secondary / PUC
C: College (graduate level and above)
I: Industrial
School
Tr: Training School
Ac: Adult literacy class /Center
O: Others
When Educational facility is available at a distance of :
- less than 5
kms
- 5 to 10 kms
- 10+ kms |
05
10
15
20
25
30
50
50
20
15
10
05 |
| Communication |
BS: Bus Stop
RS: Railway Station
NW: Navigable Waterway
When Communications facility is available at a distance of :
- less than 5kms
- 5-10kms
-
10+kms |
25
50
20
20
15
10 |
| Post & Telegraph |
PO: Post office
TO: Telegraph office
PTO: Post & Telegraph office
Phone: Telephone connection
When Facility is available at a distance of:
- less than 5kms
- 5 to
10kms
10+kms
TW:Tube Well
HP:Hand Pump
R: River
F: Fountain
C:Canal
L:Lake
S:Spring
N:
Nallah
O: Others
When drinking water facility is available at distance of,
- less than 5km
- 5 to
10kms
10+kms |
25
25
50
75
20
15
10
30
30
25
20
20
20
20
10
05
15
10
05 |
| Approach to the Village |
PR: Pucca road
KR: Kachha road
FP: Foot path
NR: Navigable river
NC: Navigable canal
NW: Navigable
Waterway |
50
40
25
15
15
15 |
| Power Supply |
ED: Electricity for Domestic purpose only
EAG: Electricity for agriculture purpose
only
EO:Electricity for other purpose like, industrial commercial etc.,
EA: Electricity for all purpose listed
above |
50
50
50
150 |
| Land Use |
Culturable Waste:
More culturable waste, Less points
Less culturable waste, More points
Area not available for Cultivation:
More area, Less Points
Less area, More
Points |
|
| Households and Population |
More people, more households-more points
Less people, less number of households-less
points |
|