Warsaw–Gdańsk railway

The Warsaw–Gdańsk railway is a 323 km Polish railway line, that connects Warsaw with Iława, Malbork, Tczew, Gdańsk and further along the coast to Gdynia.

Opening
The line was opened in stages between 1852 and 1877. Today's Line 9 was created separately in the Russian zone and German zone. It was built as part of the Prussian Eastern Railway linking Berlin with Königsberg (today's Kaliningrad).

The line is double track throughout. The last single-track section between Mikolajki Pomorskie and Malbork was doubled to two tracks in 1967.

Electrification
Electrification took place in six stages between 1969 and 1985:


 * 1969 - electrification of section Gdańsk - Tczew
 * 1972 - electrification of section Warsaw - Nasielsk
 * 1983-1985 - electrification of section of Nasielsk - Tczew

Modernisation
Between 2006 and 2014 the line was completely modernised and made suitable for passenger trains to travel at 200 km/h (160 km/h for trains without ETCS) and 120 km/h for freight trains with axle loads of 22.5 tonnes or more. Before modernisation speed on the line was between 80 and 120 km/h. The cost of modernisation cost about PLN 10 billion, which gives an approximate cost of PLN 31 million per kilometer of the route.

Usage
The line sees trains of various categories (EuroCity, Express InterCity, Intercity, TLK and regional services).


 * EuroCity services from Gdynia to Vienna
 * Intercity Premium, Express Intercity, Intercity and TLK services along the whole route
 * Regional services