"We carried out a trial with Philips in which the color temperature and intensity of artificial lighting in my office was altered during the day to approximate natural light rhythms. It was definitely an improvement on the previous ‘static’ lighting I had." - Rob Bootsman, Project director, Rijkswaterstaat, Utrecht, The Netherlands.
Background The Westraven Tower is a 23-storey office block (50,000 m2), which is occupied by Rijkswaterstaat, part of the Dutch Ministry of Transport, Public Works and Water Management. Although considered innovative when constructed in 1974, the Westraven Tower no longer met the latest standards in terms of worker care and energy efficiency. In particular, climate control was poor, there was not much natural light inside, and there was little variation in office design. A comprehensive renovation project was undertaken to address these issues.
The Challenge There is a growing awareness that human factors like staff well-being and motivation are becoming increasingly critical to the success of office-based operations. An office environment like Westraven should be designed to give optimal support to the work process. Elements such as lighting are vitally important in this respect.
Benefits With Dynamic Lighting the lighting changes automatically throughout the day, just like daylight. This makes office workers feel more energized, improves their sense of well-being and thus enhances their performance. Dynamic Lighting also enables them to set the lighting to suit their individual preferences or the task in hand, e.g. working at a computer, reading, meeting, etc. This has an inspiring effect.
The solution 5,000 recessed Dynamic Lighting luminaires, each fitted with TL5 lamps, were installed throughout the Westraven complex (TBS375)
Rijksgebouwendienst (Dutch Ministry of Housing and Construction)