Simulation is used to answer “what if?” questions about things that are too complex or expensive to test for-real. It can be defined as “a dynamic representation of some part of the real world achieved by building a computer model and moving it through time”. Traffic systems have always come under intensive investigation using modeling and simulation. The model describes a particular abstraction of the proposed or real-world system and is built in the initial effort of comprehending the system. There are four components that, when brought together by a model, result in a visual simulation.

Traffic congestion is one of the major problems encountered in large cities. Data from the Chartered Institute of Traffic and Logistic in Nigeria revealed that about 75 per cent mobility needs in the country is accounted for by road mode; and that more than seven million vehicles operate on Nigerian roads on a daily bases. This figure was also confirmed by the Federal Road Safety Commission of Nigeria; the institution responsible for maintaining safety on the roads. The commission further affirmed that the high traffic density was caused by the influx of vehicles as a result of breakdown in other transport sectors and is most prevalent in the ‘+’ road junctions.  Several measures had been deployed to address the problem of road traffic congestion in large cities in Nigeria;  namely among these are: the construction of flyovers and bypass roads, creating ring roads, posting of traffic wardens to trouble spots and construction of conventional traffic light based on counters. These measures however, had failed to meet the target of freeing major ‘+’ intersections resulting in loss of human lives and waste of valuable man hour during the working days.  This project simulates a solution to road traffic problems in large cities through the design and simulation of an intelligent system; based on fuzzy logic technology to monitor and control traffic light system. This project will also show how the new fuzzy logic traffic control system for “+” junction, eliminated the problems observed in the manual and conventional traffic control system through the simulation software developed using Java programming language.


Traffic congestion is an increasing problem in cities and sub urban spend more of their time commuting to work, school, shopping, and social event as well as dealing with traffic light jams and accidents. Traffic became heavy in all directions, more to and from cities as well as between sub urban locations. Sub urban business locations required huge parking lots because employees have to drive; there were few buses trains, or trolleys to carry scatter workers to their work place. The hope of reduced congestion in the sub urban had not been realized; long commutes and traffic jams could be found everywhere.


The aim of this project is to propose a framework that will reduce the overall waiting time of vehicle at Nigeria road junctions and thereby minimizing traffic rate.

The objectives of the study are to:

a.      Design and  implement the proposed Modified Round Robin Algorithm Smart Time Quantum(STQ) to control the flow of traffic

b.     Implement the use of traffic control barricade (inform of a steel barrier) to enforce strict compliance of traffic rules to the vehicle road users.

c.      Assign priority to emergency vehicles on the road to enhance prompt delivery of their services.