Diploma thesis studies a possibility of doubling track between Chlumec nad Cidlinou and Hradec Králové. It proposes some solutions which differ in the lenght of the track section where track speed is increased to 160 kmph. Also, the possibilities of elimination of railway crossings with the roads of any category are examined and overview of costs for construction.

The high alloyed austenitic manganese steel, the Hadfield steel, thanks to its good wear resistance of the work surface and maintaining the high toughness of the internal material in the same time, is successfully applied for casted crossings. The crossings are the most dynamic stressed components in the railway turnouts. Thanks to low surface and sub-surface hardness the occurrence of plastic deformation and the progressive wear of the crossing running surfaces can be found since the initial stages of the crossing operational life. One possibility how to increase the surface and the sub-surface hardness and this way improve the dimensional stability and the crossing lifetime as well is to apply the explosive hardening of the crossing running surfaces. The technology mentioned above means the application of the explosives in the imminent nearness to the running surface of the crossing, when the high pressure wave acting within the extremely short period actuates the plastic deformation of the material structure. The work deals with analysis of influence of explosive hardening on the structure and characteristic of Hadfield steel. The explosive hardened samples have the surface and the sub-surface hardness checked and the microscopic analysis and X – ray diffraction is applied, including the TEM analysis as well carried out by the transmission electronic microscope. The characteristics experimental testing including outcomes from assessment of the contact – fatigue load of the explosive hardened Hadfield steel samples are the part of the work as well. As an experiment final part the outcomes of the long –term validation, the surface hardness and wear of the crossing running surfaces of the explosive hardened crossing already installed into the Czech Republic railway track are introduced as well.

The subject of this diploma thesis is the design of a pre-station area near the railway station Uherský Ostroh on track 340: Brno - Veselí nad Moravou and its connection to existing roads. The work alternatively addresses the method of connecting the area to the road I/55 in the build-up area of the town, the arrangement of parking and bus stops. Part of the design is also the connection of the area for the needs of pedestrians and suggests places for parking bicycles.

In this thesis I propose increasing of the speed on the railway line No. 292 on the section žst.Bludov - žst. Hanušovice. It includes is complete design of horizontal and vertical ratios, eventually relocation of the track. Railway substructure is solved in selected sections. The thesis solves also editing of platforms and crossing structures.