The project includes the execution of works at the Warsaw West station on the following railway lines: • No. 1from km 2,415 to km 5,608, that is 3.193 km (TEN-T); • No 2 from -2,415 to -1.971, that is 0.444 km (TEN-T); • No. 3 from km 2,693 to km 5,112, that is 2.419 km (TEN-T); • No 8 from km 2,491 to km 5,031, is 2.540 km (including 2.390 km in TEN-T); • No 20 from km 4.321 to km 4,597, that is 0.276 km (TEN-T); • No 42 from km 3,323 to km 3.926, that is 0.603 km (outside TEN-T); • No 46 from km 2,642 to km 4431, that is 1.789 km (outside TEN-T); • No 85 from km 2.520 to km 4.295, that is 1.775 km (outside TEN-T); • No. 445 from km 2,753 to km 3.723, that is 0.970 km (TEN-T); • No 447 from km 2,384 to km 4.335, that is 1.951 km (including 1.939 km in TEN-T); • No 849 from km 3,709 to km 4,789, that is 1.080 km (outside TEN-T); • No 850 from km 4.285 to km 5.327, that is 1.042 km (outside TEN-T); • No 918 from km 3,148 to km 3,354, that is 0.206 km (outside TEN-T); • No 919 from km 3,240 to km 3.533, that is 0.293 km (outside TEN-T); • No. 920 from 4.000 km to 4.391 km is 0.391 km (TEN-T). In addition, the project includes the execution of works on the Warsaw West – Warsaw Main section on the following railway lines: • No 23 from km 1,427 to km 2,634, that is 1.207 km (outside TEN-T); • No 448 from -2.413 km to -2.143 km, that is 0.270 km (of which 0.253 km in TEN-T); The total length of the sections covered by the Project is 20.449 km, of which 12.275 km in TEN-T. The project is located in the Mazowieckie Voivodeship in the area of the Warsaw Railway Node (“WWK”) on the diameter line.