Josef,
Bombardier currently operates in Wroclaw, Katovice, Lodz and Warsaw employing around 1,400 people in the construction, upgrade and maintenance of engines and rolling stock not only for local but also export market (50 complete locomotives were exported to Italy). Bombardier also provides the electrical and signal equipment associated as well as level crossings and computer based interlocking systems. Here is the main product of the family; the TRAXX locomotive:
The company also extends its reach to trams and metro cars. Bombardier's tram expertise comes from its takeover of German tram manufacturers over the last couple of decades. Some parts used in the modernization of the metro in London are made in Wroclaw, for instance. The presence in the streets of Polish cities is remarkable as the country boasts the second biggest tramway network of Europe!
Here is the tram in Krakow:
Other units operate in Gdansk, Lodz and Krakow.
Poland has one of the largest railways in Europe as a legacy of a Communist past that stressed the presence of this type of transportation after the end of WW2. The fall of the Berlin Wall and the incorporation of the country into the European Union structures demanded the interoperability and integration with the European Rail Traffic Management System (ERTMS) and safety levels (CENELEC). This demands modern technology and ISO compliance, etc and therefore the needs to partner the local industry with a solid international partner like Bombardier.
Out of this partnership, the Polish industry produces the body of the TRAXX series of locomotives not only for Poland but also America and other foreign clients as I mentioned as well as the street cars or trams that operate in the major cities. Part of the 50 million Euros that the European Union will finance the modernisation of the existing rolling stock fleet of Mazovian Railways in Central-Eastern Poland.
Interestingly, as a result of the Canadian partnership, Poland can share similar outlooks in regional trains too. This one from the Koleje Mazowiecki I believe...
...looks very similar to the very own "West Coast Express" that services here Vancouver with the city suburbs that we may encounter through the game: