The scheme, located near Luton Airport comprised of the replacement of 241 high pressure sodium lanterns with Kirium Pro’s from DW Windsor, onto existing columns.
Kirium Pro 1, 2 and 3’s in a 4000K colour temperature, answered all the requirements. Providing exceptionally efficient (up to 138lm/W) and uniform light from the central reservation, slip roads and road verges. The column heights ranged from 6 to 15M with spacing along the central reservation set at 43M, the slip roads vary from 33M to 15M for the smaller height columns
Six (of the 23-standard available) optic distributions were selected to deliver precision, low glare lighting, exactly where it is needed - along different points of the carriageway, whilst ensuring minimal spilt light and light pollution.
The newly-installed LED lights not only minimise energy usage and costs but also reduce maintenance and road closures meaning less disruption for drivers.
The project also included the installation of a CMS monitoring system which allows contractors to set dimming schedules and remotely control the lights, reduce operational costs and improve traffic planning; reducing disruption to road users.