Please READ MORE for the video. This is street level power line. APS track have sections which 11 meters and each section occurs 8 meter conductive and 3 meter neutral section. Do not worry, only section electrifies corresponding to vehicle. Non contacted 3rd energy rail (ETR System) is fully embedded in the middle of two rails on the line. Non contacted 3rd energy rail (ETR System) is fully embedded in the middle of two rails on the line (at the alignment section). 
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