This document discusses how geographic information systems (GIS) can be used for traffic management systems. Some key points:
- GIS allows for providing alternate routes to drivers, informing passengers, optimizing traffic signals, minimizing accidents, and reducing congestion.
- GIS can minimize accidents by creating a database of high-accident locations and informing drivers to be cautious in those areas.
- A case study describes how GIS was used in Kaduwela, Sri Lanka to identify needed improvements to the road network to reduce wasted time and resources by analyzing spatial data on roads, road conditions, and population accessibility.
2. Introduction
• Traffic management is the planning, monitoring and control or
influencing of traffic.
• The Traffic Systems Management Program (TSM) is used to
increase the capacity of State and local transportation systems by
increasing the number of peak-hour person-trips by improving
existing facilities without major construction.
3. Objectives
• Ensure reliable and safe operation of transport.
• Ensure fair allocation of infrastructure space (road space, rail
slots, etc.) among competing users.
• Improving the travelling mobility.
• Conserving the energy while protecting the environment.
6. Role of GIS in TMS
GIS Plays Significant Role In Each Field Of Traffic
Management. Some Of These Fields Are ………..
• Providing Alternate Routes To Road Users.
• Providing Necessary Information To Passengers.
• For Proper Signal Control.
• Minimizing Accidents.
• Reduction Of Congestion Spots.
7. ACCIDENT MINIMIZATION
• Accidents Can Be Minimize Through GIS By Generating A Data
Base Of Most Accidents Prone Spots (Crash Spots).
• Information Can Be Provided Either In Tabular Or Graphical
Format To The Users.
• Drivers Become Extra Cautious At Such Spots Hence Free Flow
Can Be Maintained.
8. METHODOLOGY
• Load Pedestrian-vehicle Crash Data And Segregate The Data At Each
Location
• Compute A Severity Index At Each Location.
• Examine The Spatial Patterns Of The Pedestrian-vehicle Crash Data.
• Create A Pedestrian-vehicle Crash Hot Spots Map.
• Load The Bus Stop Data And Identify Bus Stops In Hot Spots Areas.
• Compute Severity Indices And Rank Unsafe Bus Stops.
13. PASSENGER INFORMATION SYSTEM
• Passenger Information System design for multi-modal transit system that
integrates GIS, Network Analysis, user interfacing and database management.
• PIS gives answers to user queries like : Locations and street address
Optimum path based on time
Optimum path on cost
Optimum path based on dist.
Trip making information
Schedule of public transit
Fare Enquiry
18. • Aim Of The Study Is To Identify Improvements That Should Be
Made To The Road Network In Order To Reduce Wastage Of
Time, Fuel, And Other Valuable Resources.
• GIS Is To Incorporates Spatial Variation Of Roads, Road
Condition And Population In The Context Of Road Network
Accessibility And Road Service Accessibility.
27. CONCLUSION
• The higher the Total Spatial Accessibility Indicator (TSAI) the higher is the easiness
to access.
• The higher the ARI the higher is the need to provide assistance to develop the roads
in a particular land extent.
• Higher the NPA higher would be the time taken to access a location through that a
pathway.
• A simple model developed for Kaduwela area presented the potential of GIS in the
assessment of accessibility, thereby identifying the zones with various degrees of
accessibility.
28. REFRENCES
• A GIS Approach To Identify Road Network Improvement Needs – Case Study Of Kaduwela
(Sri Lanka) by Chandimal W. P. A. I. M and Wijesekera N.T.S.
• www.trafficinfratech.com
• tanmoy.chakrabarty@tcs.com
• NPTEL Web Course