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Building a Transport GIS in Manipur
By Keith R Johnson

PART 3

Public Transport
The GIS includes information on Inter-State Bus Services, State-wide Services and District-wide Services. The main sources of information were: -

• Directorate of Transport (responsible for regulation)

• Interviewing private firms - mainly for Inter-State/ Tourist and the Sumo Services to extremities of the State.

• Interviewing officials, bus/truck/jeep/van/auto-rickshaw drivers and passengers, other members of the public whilst on traffic surveys and road reconnaissance tours.

• Meetings in Towns and Villages

• Ad hoc meetings with PWD engineers, NGOs and members o the public in our office or at presentations.

Each State-wide service was allocated an Unique Identifier such as DML1, DML2, BSR1 where DML and BSR are the standard abbreviation of the "lines" and each District Service was allocated an Unique Identifier such as IMPL1, IMPL2 where IMP is the standard abbreviation for Imphal District and L indicates a local service. There are only two Inter-state services, which were assigned codes EXT1 - Imphal to Dimapur/Guwahati & EXT2 - Imphal to Silchar.
The whole public transport system comprises two tables - PTservices and PTroutes. PTservices contains a row for each service containing the Unique Route Identifier, the Operator, Description (e.g. Chandel to Sugnu), and Mode - bus, mini-bus, truck, jeep/gypsy, van, auto-rickshaw, sumo, and the number of vehicles plying the route per day. PTroutes contain for each stop on a route the Unique Route Identifier, the Unique LinkID of each link in the road network that the bus route serves and the sequence of that link along that route (i.e. first link, second link etc.). The Unique LinkIDs enable public transport information such as individual routes, the number and type of vehicles traversing/ servicing each link to be displayed geographically. Figure 4 shows the public transport route system using the Table containing village demographic information the accessibility (or non-accessibility) to public transport can be assessed.


Towns and Villages
The 1991 Census of India publishes eight volumes - one for each District (Imphal East & West are combined in a single volume). There are 2262 places - towns or villages. Each place has been allocated an Unique Identifier - PlaceID e.g. BSP.1V.12 where BSP is the standard district abbreviation in this case Bishnupur, 1 is the number allocated to the development block in the Bishnupur Volume, 'V' indicates the place has been designated a village ('T' indicates a Town) and 12 is the serial number allocated to the village in the appropriate census volume. The location of the villages was determined from the 1:50,000 toposheets, PWD District Maps and the maps in the Census Documents. The locations were digitized using the heads-up method with the 1:50,000 toposheets displayed on the screen.
Initially only a small number of the items of information contained in the census document was keyed into the computer. Now practically all the information has been keyed: - Amenities

• Education

• Medical

• Drinking Water (Potable)

• Post & Telegraph

• Communications (Bus Stop)

• Approach to Village (type of road construction)

• Nearest Town & distance by road to nearest town

• Power Supply
  Demographic

• Number of Residential Houses

• Number of Households

• Total Population (Male & Female)

• Population in 0-6 year age group (Male & Female)

• Scheduled Castes (Male & Female)

• Scheduled Tribes (Male & Female)

• Literates (Male & Female)

• Total Main Workers (Male & Female)

• Cultivators (Male & Female)

• Agricultural Laborers (Male & Female)

• Livestock, Forestry etc workers (Male & Female)

• Mining & Quarrying workers (Male & Female)

• Manufacturing, Processing and Repairs in Households (Male & Female)

• Manufacturing, Processing and Repairs not in Households (Male & Female)

• Construction (Male & Female)

• Trade & Commerce Workers (Male & Female)

• Transport Storage & Communications (Male & Female)

• Other Services (Male & Female)

• Marginal workers (Male & Female)

• Non-workers (Male & Female)

Using the "Info" tool the census data for a specific town or village can be displayed on the screen simply by 'clicking on' the village.

In addition the amenity and/ or the demographic information relating to people living within say 3 km of a selected road section(s) can be readily summarized and/ or accumulated.

The villages contained in the census sometimes comprise two or more small settlements. To assist social, environment and other surveys the location of settlements within two kilometers (crow-line distance) of the center-line of road sections being evaluated in the Feasibility Study have been digitized from the 1:50,000 toposheets.

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