 
View of the lift shaft and roofed exits
Railway station Plycwia - modernized track-layout,
to platforms on Koluszki
station
traction
network and sygnalling devices.
Project financed from the funds of European Union (EFRR)
Modernization of railway line Warszawa - Lodz
Stage I – section Skierniewice - Lodz Widzew
1st stage of the modernization
comprised the design and execution of the rebuilding of:
1. the section Skierniewice – Koluszki (41,8 km long), the contractor of
which is the joint venture managed by: : Trakcja Polska -
PKRE PLC seated in Warsaw,
2. the section Koluszki - Lodz Widzew (21 km long), the
contractor of which is the joint venture managed by PKP
Energetyka Ltd. seated in Warsaw.
The expected result of the
modernization is increase of the speed with the use of classical
rolling stock up to 140 km/h and tilting trains up to 160 km/h as
well as achievement of the journey time below 75 minutes on the
whole line Warszawa – Lodz, improvement of traffic safety, reduction
of costs of transport and infrastructure maintenance, limitation on
noise and vibrations, improvement of safety at railway crossings
and reduction of pollution.
The role of BPK Poznan in the project was to coordinate the design
process and to prepare, in cooperation with CBPBBK KOLPROJEKT and
BPK i UI Lodz, the design documentation for the purposes of the
modernization of both sections.
The scope of the design documentation for the section Skierniewice – Koluszki comprised:
● preparation of building designs with
agreements and all required approvals and permissions
including a construction permit,
● preparation of the detailed design allowing for
phasing of works,
● preparation of the technical as – built documentation.
Factual scope of the modernisation
comprised:
● rebuilding of the track
lay-out to obtain the speed of V=140 km/h on the designed
section and to enable trains with swinging body to travel
with the speed up to 160 km/h on the whole length of the
route;
● rebuilding of the track
bed to obtain proper endurance;
● rebuilding of the
engineering structures (3 bridges, 6 viaducts, 27 culverts
and 3 footbridges) to adapt them to the technical conditions
required for railway engineering structures „D2”, the
regulation by MT i GM of 10.09.1998, the speed of 140 km/h
with the ability to increase it up to 160km /h for swinging
trains, and the service for the disabled;
● rebuilding of platforms
and cubature objects in relation to verification of the
railway route suitable for the given speed;
● rebuilding of railway
level crossings in connection with modernization of track
lay –outs;
● rebuilding of telecommunication systems
to adapt the infrastructure to the speed of 140 –160 km/h ,
placing route cables and a fibre – optic cable and removing
cable collisions resulting from the modernization of the
track lay-out;
● rebuilding of traction
network including demounting of present network and building
a new one of the cross section of 320 mm2, building new
networks for switch passages on stations between tracks 1
and 2 and rebuilding existing side tracks on stations in
relation to rebuilding track lay-outs;
● rebuilding of non-
traction supplies for power supply from a newly built line 15 KV
by means of transformers stations SN/nn (15/0,4 kV);
● rebuilding of power supply of 1 kV in
relation with modernization of platforms, illumination of
platforms, tracks and turnouts and level crossings.
Scope of design documentation for section Koluszki -
Lodz
Widzew:
● pre-design works,
● concepts for design solutions,
● construction designs including all
necessary agreements and permits together with construction
permit,
● detailed design including phasing works,
● as-built documentation and technical
documentation.
The range of works included:
● rebuilding of track lay-out to obtain
speed V=140 km/h at the section being designed and allow
rolling stock with swinging body to speed of 160 km/h along
the entire length of the line,
● rebuilding of substructure and gaining proper endurance,
● rebuilding engineering objects (11
objects for general repair, repairing 5 obiects, building
passenger tunnel on Koluszki station, liquidation of 5
footbridges) in order to adapt them to technical conditions
for railway engineering objects „D2” and instructions MT and
GM of 10.09.1998 as well as adapting them to speed 140 km/h
with ability to increase speed to 160km /h for rolling stock
with swinging body and for service for the disabled,
● rebuilding of level
crossings in relation to modernization of track lay-outs,
● rebuilding of communication systems in
order to adapt infrastructure to speed 140 –160 km/h with,
placing route cables and a fibre – optic cable and removing
cable collisions resulting from the modernization of the
track lay-out,
● rebuilding of traction network including
demounting present network and building a new one of the
cross section 320 mm2, building new networks for switch
passages on stations between tracks 1 and 2 and rebuilding
existing side tracks on stations in relation to rebuilding
track lay-outs,
● rebuilding of non-
traction supplies for power supply from a newly built line
15 KV by means of transformers stations SN/nn (15/0,4 kV),
● rebuilding of power supply of 1 kV in
relation to modernization of platforms, illumination of
platforms, tracks and turnouts and level crossings.
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