Relevant discussion with cited sources: https://imhd.sk/transport/doc/sk/16236/Elektri%C4%8Dky-na-Hlavn%C3%BA-stanicu-by-mali-jazdi%C5%A5-r%C3%BDchlej%C5%A1ie-v%C4%8Faka-preferencii-na-kri%C5%BEovatk%C3%A1ch?dfpi=101#101