Budapest later, with the help of the Russian Empire. 1867 was the year of Reconciliation that brought about the birth of Austria-Hungary. This made Budapest the twin capital of a dual monarchy. It was this compromise which opened the second great phase of development in the history of Budapest, lasting until World War I. In 1849 the Chain Bridge linking Buda with Pest was opened as the first permanent bridge across the Danube and in 1873 Buda and Pest were officially merged with the third part, Óbuda (Old Buda), thus creating the new metropolis of Budapest. The dynamic Pest grew into
Budapest–Újszász–Szolnok railway trains, LoLa as well. Regional trains are usually made up by 5 coaches and one locomotive. These are usually push-pull trains. Most of them are Bhvs reconstructed in Dunakeszi by Bombardier. Since the autumn of 2012 there are FLIRT stocks as well, which were produced by Stadler. Budapest–Újszász–Szolnok railway Budapest–Újszász–Szolnok railway line is the number 120a line of the MÁV. It is a double track, electrified track, which is part of the international rail system. It goes on as Line number 120, which connects Budapest, Békéscsaba, Lökösháza, Arad (in Romania)]. The line from Budapest to Szolnok is 100 km long.