This master thesis is a product of authors interest in railway superstructures, due to a great professorial influence during her Civil Engineering Master Studies.Prof. Dr.tech. Klaus Riessberger served as a great mentor in the writing of this work and was appreciated greatly. Authors wish was to explain ballasted and ballastless railway systems and make them more understandable to whomever, that has interest in this area, as well as to sum up the advantages and disadvantages of both systems, in hope of it being helpful to her colleagues in the choice of the railway system.