Traffic Control Methods And Safety Assurance At Sebategna Area Level Crossing

Today railway transportation is one of the modern and basic transportation systems in developedrncountries due to its mass transportation system. But, rail-road level crossing related accidents arernmore dangerous than other transportation accidents in terms of loss of human life, injury, damagernto railway property, severity and death rate etc. and there still remain level crossings requiringrnimprovements. Since our country’s railway system is modern type of railway system, this thesisrnassesses the modern type of traffic control systems that are used at level crossing in order tornreduce the fatal accidents that could occur at these conflicting places in general and thern‘Sebategna’ area level crossing of the Addiss-Abeba Light Rail Transit (AA-LRT) in particularrndepending on the experiences of developed countries that use modern railway transportation.rnThe main parameter in traffic control at level crossing is sight distance of a train from road users.rnSo, various elements that have effects on determining the sight distance are stated, variousrnmathematical equations of sight distances at different states of the road users are establishedrndepending on the stated elements, and particularly the sight distances for different road users ofrnthe ‘Sebategna’ area level crossing i.e. position of control sensors and distance of the blockrnsections near the level crossing are determined, appropriate traffic control systems i.e. signals,rnsigns and road markings are selected and displayed graphically using AutoCAD software.rnThe results of this thesis shows carefully selected fail-safe type of active control systems alongrnwith signs and road markings is necessary in order to achieve safe, reliable, and efficient trafficrncontrol and safety assurance at the ‘Sebategna’ area level crossing. So, this thesis can help to thernEthiopian Railway Corporation and other sectors as an instrument in designing traffic controlrnsystems at level crossings.

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