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The production of stray currents by DC Light Rail Systems leads to the corrosion of the supporting and third party infrastructure in close proximity to the rail system. This work simulates two parallel tracks that are occupied by two trains; one on each track. This type of modeling constitutes a realistic case study that is utilized to investigate the effect of soil topologies on the corrosion performance of a floating DC Light Rail System focusing on the supporting and third party infrastructure. The modeling technique used involves the accurate computation of the shunt and series parameters for use in a resistive type model using a commercially available software package. The results demonstrate the importance that soil resistivity has on the corrosion risk to traction system and third party infrastructure. Such information could ultimately be used to vary the level of stray current protection across a light rail system to ensure an consistent lifetime across the whole system.