5,716 research outputs found
Insights from computational modelling and simulation towards promoting public health among African countries
One of the problems associated with some African countries is the increasing trend of
road mortality as a result of road fatalities. This has been a major concern. The negative
impacts of these on public health cannot be underestimated. An issue of concern is the
high record of casualties being recorded on an annual basis as a result of over-speeding,
overtaking at dangerous bends, alcohol influence and non-chalant attitude of drivers to
driving. The aim of this research is to explore and adapt the knowledge of finite state
algorithm, modeling and simulation to design and implement a novel prototype of an
advanced traffic light system towards promoting public health among African countries.
Here, we specify and built a model of an advanced wireless traffic control system, which
will help complement existing traffic control systems among African countries. This
prototype is named Advanced Wireless Traffic Control System (WPDTCS). We developed
this model using an event-driven programming approach. The technical details of the
model were based on knowledge adapted from the Finite State Automation Transition
algorithm. It is expected that the AWTCS will promote the evolution of teaching in
modeling, simulation, public safety by offering trainees an advanced pedagogical
product. It will also permit to strengthen the collaboration of knowledge from the fields
of Computer Science, Public health, and Electrical Engineering.
Keywords: public health, public safety, modelling , simulation, pr
Traffic Optimization Through Waiting Prediction and Evolutive Algorithms
Traffic optimization systems require optimization procedures to optimize traffic light timing settings in order to improve pedestrian and vehicle mobility. Traffic simulators allow obtaining accurate estimates of traffic behavior by applying different timing configurations, but require considerable computational time to perform validation tests. For this reason, this project proposes the development of traffic optimizations based on the estimation of vehicle waiting times through the use of different prediction techniques and the use of this estimation to subsequently apply evolutionary algorithms that allow the optimizations to be carried out. The combination of these two techniques leads to a considerable reduction in calculation time, which makes it possible to apply this system at runtime. The tests have been carried out on a real traffic junction on which different traffic volumes have been applied to analyze the performance of the system
Optimization of smart traffic lights to prevent traffic congestion using fuzzy logic
One of the main causes of traffic congestion, especially at intersections, is because traffic lights have not been able to show the right time according to the existing traffic conditions. Time settings based on peak/off-peak traffic lights are not enough to handle unexpected situations. The fuzzy mamdani method makes decisions with several stages, the criteria used are the number of vehicles, the length of the queue and the width of the road to be able to optimize the time settings based on the real-time conditions required so that unwanted green signals (when there is no queue) can be avoided. The purpose of this research is to create a simulator to optimize traffic time management, so that the timers on each track have the intelligence to predict the right time, so that congestion at the intersection can be reduced by adding up to 15 seconds of green light from the previous time in the path of many vehicles
Simulation of signalized intersection functioning with fuzzy control algorithm
In the course of research the fuzzy algorithm for traffic control at signalized intersection has been developed. Based on the results of simulating of intersection functioning during an hour and a day it has been established that using of developed fuzzy algorithm enables to reduce average and maximal queue lengths of vehicles before the intersection owing to adaptation of control system parameters to traffic flow volumes
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