The participants of the XVth International Winter Road Congress will be invited to take part in two technical visits. They will present different aspects of the winter road maintenance. During the visits, the participants will get to know how to handle extreme weather conditions at the engineering structures and the modes of road and motorway traffic management.
PELPLIN MOTORWAY MAINTENANCE CENTRE
The Motorway Maintenance Centre located in Pelplin is one of three Maintenance Centres located in the northern section of A1 motorway (Rusocin – Toruń South).
Intertoll Polska, carrying out the Operator’s tasks on this section of A1 the motorway, carries out work related to ongoing maintenance of the road and carries out maintenance, renovation and clean-up activities intended to maintain the safety and aesthetics of the road. Employees carrying tasks related to the operation of the motorway maintain the operational condition of the A1 motorway adhering to the current standards. Furthermore, they take care of the landscaping and upkeep of green areas, carry out drainage work and secure traffic incidents areas, as well as remove the effects of accidents and collisions. As part of Winter upkeep, the Operator of this section carries out activities preventing slippery roads by salting the motorway with appropriately prepared brines, as well as activities to combat and remove snow and slush.
MMC Pelplin includes a 24-hour Traffic Control Centre and CusTomer Service Centre. The Traffic Control Centre (TCC) monitors traffic on the motorway 24/7 and reacts in case of traffic obstructions or incidents, increasing safety and comfort of travel for the users. The TCC works directly together with the Traffic Patrol, maintenance employees and toll booth personnel. All information from the observation systems and reporting units on the motorway comes here – from meteorological stations, emergency columns, speed and traffic intensity measurement equipment.
The MCC building complex includes, among others, other rooms for the Operator’s employees, necessary technical facilities with equipment warehouses and a warehouse for storing agents for removing winter slipperiness from the roads.
ROAD BRIDGE OVER THE VISTULA RIVER IN KWIDZYŃ
The road bridge over the Vistula River in Kwidzyń is an engineering structure located within the national road no. 90. It was built between 2010 and 2013 in place of a ferry crossing, which operation was limited by weather and hydrological factors (the ferry ran between April and October). During other months, the inhabitants of these areas had to make use detours stretching over several kilometres. Thanks to the direct crossing to the other side of the river, the travel time from Kwidzyń to the Tricity was shortened by an hour. The bridge in Kwidzyń is comprised of modern road infrastructure technologies incorporated harmoniously into the Nature 2000 protected areas.
Construction of the bridge in Kwidzyń involved the first ever use of B-80 increased strength concrete in Poland. The entire load-bearing structure of the bridge is made of it. 54 stay cables were used for the bridge, each of them with 75 cables, and each cable consisting of 7 wires. The bridge in Kwidzyń places fifth in the world and first in Europe in terms of span length, which is the most important parameter for bridge structures.
Technical specifications of the bridge:
• total length: 808.5 m
• total width: 15.9 m
• number of spans: 6
• length of primary spans: 2 × 204 m
ROAD TUNNEL UNDER THE DEAD VISTULA RIVER WITHIN THE SŁOWACKI ROUTE
The road tunnel under the Dead Vistula river is the only underwater and the longest and deepest tunnel in Poland. It is comprised of two communication routes with two traffic lanes in each direction.
Construction of the tunnel took place between 2011 and 2016, as part of the “Connection between the Airport and the Sea Port in Gdańsk – Słowacki Route” project. The tunnelling method chosen gave the Gdańsk structure the status of the first ever road tunnel made using a Tunnel Boring Machine (TBM) in Poland.
Basic information about the structure:
• construction: 2011-2016;
• date of commissioning: 24 April 2016;
• length of the tunnel: 1377.5 m;
• cost of construction: PLN 885.6 M.;
• tunnel made using a TBM tunnelling machine with a 12.6 in diameter disc;
• average traffic intensity in the tunnel is 25,626 vehicles/24 hours.
To ensure the proper operation of the tunnel, it was necessary to equip it in several systems and devices providing permanent road traffic control. Safety systems were installed, facilitating evacuation of people and vehicles and carrying out rescue activities in the tunnel, particularly in case of a fire. The condition of all the equipment and traffic in the tunnel are monitored by operators of the 24/7 Tunnel Management Centre.
TRISTAR MANAGEMENT AND CONTROL CENTRE
The integrated Tristar Traffic Control System allows for automatic traffic control in the entire Tricity area by employing Intelligent Transport System (ITS) technologies. This undertaking was implemented by three cities: Gdańsk, Sopot and Gdynia.
The Tristar system enables:
• collection, aggregation and processing of traffic data;
• traffic monitoring and identification of danger areas;
• detection of traffic incidents (automatic detection, reports);
• traffic control via traffic lights (optimisation of control parameters for individual areas);
• strategic traffic management (diverting to alternative routes, speed management);
• notifying participants about the traffic conditions;
• delivering, sending out and sharing traffic information and information about the functioning of the street network and the public communication network;
• traffic planning (traffic modelling and prediction, creating optimal transport routes).
The Tristar system is handled by two area-based management centres:
• Gdynia Centre covering Gdynia – 6 operator stations;
• Gdańsk Centre covering Sopot and Gdańsk – 8 operator stations.
Both centres are connected with a fast fibre optic link. It allows for managing traffic in the entire Tricity area from either of the centres, depending on the operator’s competence. Furthermore, traffic data for the entire Tricity area are aggregated in a central database.
DCT Gdańsk is Poland’s largest and fastest growing container facility, and the only deep-water terminal in the Baltic Sea Region having direct ocean vessel calls from the Far East. Located in the heart of the Baltic in the Port of Gdansk, DCT is the most Eastern facility in the Gdansk – Le Havre range.