The main construction site is situated, for the most part, on the existing track-bed. The new railroad design aimed to keep the existing position of the track with regard to line-side structures, cramped site conditions, and great numbers of related facilities. In addition to the overhead contact line reconstruction, we reconstructed the 3 kV traction substation and 25 kV supply substation in the ‘Benešov u Prahy’ railway station, and further heavy-current installations. This reconstruction has several special features, for example, anchoring the traction supports to the bridge structure vaulting over the ‘Sázava’ River; change in the arrangement of lines in the ‘Senohraby’ railway station, where the original four-track configuration was reduced to three tracks; the ‘Èerèany’ railway station in a bend with a curved line requiring a substantially shorter closure rail, tensioning of catenary and trolley lines in the curve on the railway bridge over the D1 motorway, where the free span is 85 m.
Within the project of ‘Benešov u Prahy – Stranèice’ Route Optimization, Elektrizace železnic Praha a.s. (Railways Electrification Prague J.S.C.) reconstructs the 3 kV overhead contact line in its whole length. Overhead contact line masts are an implied part of our supplies including their erection. Masts are prefabricated in our own production center in Vlkov.