Introduction People in Urban areas
have a constant fear of robbery, theft and similar untoward incidents. Though
police has been providing night security services, such incidents are on the
rise Main reasons are lack of adequate personnel, lack of up-to-date spatial
information (map of the locality) so that police could plan their activity in an
optimal manner. Keeping in view of the difficulties faced by police, a case
study towards optimising the security systems in Bangalore has been conducted.
Since, there are various aspects involved which have both geographical as well
as other attribute connotations / contexts, it was found feasible to adopt a GIS
approach for optimisation of police service. Following sections present in brief
the sailent features of the study.
Database Spatial An
up-to-date of a locality as been prepared by using IRS-1C-PAN (high resolution)
data on 1:10000 scale so that each road is clearly shown. However, the map has
been validated in the field for its reliability in so far as the road network
pattern and certain spot details are concerned. The map thus prepared; gives the
information about the road name / number, spot details like hotels, bars, wine
stores, apartments, normal residential or commercial zones etc.
Also,
the geographical limits (jurisdiction) of the police station is also shown. The
spatial data has been digitised and organised around the GIS (ARC / INFO) core.
Project Design While designing the project operation,
following assumptions are made:
- Police security to be provided during night between 10.00 P.M. to 5 A.M.
- Armed policemen shall move with a speed of 2 km/hr.
- Any spot within the limits of the concerned police station should be watched
at every 60 minutes interval.
- All the sensitive spots like bars, hotels, wine shops, cinemahalls, slums
should be given additional importance.
- At constant interval of time, say 1hr, the policemen should meet each other
but not continue in the same path or direction i.e. the path of different
persons should be different, yet to be covered in accordance with the speed .
- Given the length of each path (roads), at a constant speed of movement, and
under the condition that every spot should be visited at a regular interval of
one hour, determine the number of police personnel to man limits of the police
station
Case of Chandra Layout Police StationChandra Layout
Police Station limits in Bangalore city and covers an area of about 5 sq. kms.
The area has been divided into five beats. The main Police Station is located at
the centre.
A scheme for providing optimum security has been marked and
also the number of personnel. The output consists of:
- Number of Police Personnel required.
- Starting Point for each team / person while on patrolling.
- The direction and length of path for each team.
- Junction points where two teams meet.
- Optimum path for the senior officer to check the patrolling operation.