To view this page ensure that Adobe Flash Player version 11.1.0 or greater is installed.
PUBLIC LIGHTING PUBLIC LIGHTING LEADS SAFETY ON AFRICAN ROADS Sub-Saharan Africa is the proud holder of seven out of the 10 fastest growing economies in the world, along with a growing middle class and a number of rising mega cities. Street lighting for these swelling urban areas is therefore becoming an increasing necessity for improved traffic flow and safety in public spaces, writes Nicolette Pombo-van Zyl. C or reduce, the industry can be a serious role player in the fight to reduce CO 2 emissions. Shaun Kemp, Officer: Public Lighting Development at the City of Cape Town explains that, “the ability to better control light will greatly reduce the level of light pollution and the higher efficiency level will help reduce the amount of energy ▼ ities around the world are However, with the advancements being judged by the quality and made in LED lighting all that is changing. reliability of lighting installations It is now possible to achieve a higher and the ability to adequately maintain lumen output and still have a very high them. Therefore, the authorities colour index value, with the added bonus responsible for public lighting must of energy saving, which is currently the take the total cost of ownership of an driving force in lighting worldwide. installation into account as this is critical to making the right decisions upfront for STAMPING OUT PUBLIC LIGHTING’S an installation to be cost effective and CARBON FOOTPRINT allow for affordable maintenance. With the large amount of energy being Another key consideration is the consumed worldwide by lighting and colour of the luminaire. Due to the higher in particular street lighting, it is critical lumen output of a sodium lamp, African that cities and municipalities determine cities seem to have accepted a lower strategies to reduce the resulting carbon ering colour rendering index value, whereas footprint. footprpp intnt.. It ItItItIt is isisisisis possible to achieve p pos sib he ex value in Europe the higher index val ue this through the high for the most efficiency values for effic LAYMEN NS FOR red, part is required, e lighting that are now light DEFINITIO measure th mens which is why a lot Lumen – Lu coming into the market com ed from a itt ht being em ght more white light amount of lig place. plac Although the cond – installation is in bulb per se cause cau of climate dex value dering in Colour ren ng evidence along the change cannot be cha surement of mea quantitative ide with metal halide placed plac solely at the reproduce ht source to ability of a lig lamps being in n feet of the lighting faithfully in of objects ral the colours operation. industry to control indu ideal or natu with an comparison light source Shaun Kemp, Officer: Public Lighting Development at the City of Cape Town Street lights on metal pole in Nairobi 80 ESI AFRICA ISSUE 4 2014