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TECHNOLOGY / CASE STUDIES BRIDGES OF KWIDZYN COUNTY


Officially opened to traffic last July the Kwidzyn Bridge is the longest extradosed bridge in Europe. Griven worked on the lighting of this new Polish landmark.


The Kwidzyn Bridge provides a faster driveway to the city of Kwidzyn in Northern Poland. With its 808.5m length and 16m width, the new bridge over the river Vistula offers a beautiful sight at night owing to its elegant structure and well designed illumination scheme. Consisting of six spans and seven pillars, it supports two traffic lanes and a hard shoulder.


Conceived by the company DS-STUDIO, the lighting design of the Kwidzyn bridge pleasantly stresses the seven pilasters and


their cable system using an array of well positioned LED projectors that build, with warm white beams. DS-Studio and Griven cooperated with Pro Light on the project. Sixteen units of Dawn W MK2 warm white were installed on each of the seven towers of the extra-dosed bridge, for a total of 112 units. 4+4 units of Dawn W MK2 with narrow optics have been mounted on top of each pillar in order to light the upper structure and side cables. 2+2 units of Dawn W MK2 with spot optics have also been installed


in order to create a vertical beam of light on the lower part of the columns, while 2+2 units, alternatively with spot or narrow optics, according to the driving direction of the lanes, have been positioned at the crossing point between pillar and span to complete the required arrow-shaped design. Moreover, a few selected units have been fitted with antiglare shields in order to protect the drivers’ eyes. www.griven.com


STREAMLINING THE CITY


Designed by Skanska to streamline Brent Council’s work, the new Civic Centre features economical and environmentally friendly lighting from Harvard.


Brent Civic Centre is a multipurpose built facility next to Wembley Stadium and Wembley Arena, which has been designed and built by Skanska to streamline the Council’s activities by providing office space for 2000 staff whilst also offering a destination for the community to meet, shop and eat.


Harvard was chosen by the specified luminaire manufacturer, Designed Architectural Lighting, to supply approximately 2,800 of drivers from its CoolLED range for the project. The CL50- 1400D and CL700D-240-B drivers were installed in the soaring foyer and atrium, running GE Infusion modules in DAL Civic G210 surface mounted downlighters. The installation of these fixtures helped the building achieve an estimated 33% reduction in carbon emissions. Harvard created a special variant, the DualDim CLR50 1400mA open frame driver, specifically for the project and carried out over a month of


thermal and EMC tests due to the specific thermal requirements of the centre. The new Brent Civic Centre also features solar shading, natural ventilation, a high- performance façade, combined cooling, and


heating and power that utilises waste fish oil, making it the most sustainable local authority building to be built in the UK. www.harvardeng.com


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