PresentationLIGHTING REINFORCEMENT FOR CROSSWALKS
Inadequate vertical illuminance levels at crosswalks, with regard to most existing regulations, together with high driver distraction levels hinder pedestrian identification, increasing the risk of accident. To overcome this challenge, the Prudenza system integrates an intermittent beacon aimed at drivers and an interactive light with high incidence over pedestrian vertical planes.
By detecting pedestrian presence in a close spatial environment, the Prudenza series intensifies the vertical plane luminance level, facilitating anticipated driver recognition of pedestrians. An adapted photometry and optical system (MRLS® – Micro refractive light surface) guarantees a full visual comfort level for drivers, with no glare.
The flashing beacon system aimed at vehicles reinforces the message, increasing driver alertness and visual focus on the crosswalk. The Prudenza series is also known for its connectivity with other complementary traffic light reinforcement series.
STRUCTURE AND MATERIALS
The Prudenza system comprises a cylindrical column of AISI314 or AISI316 Stainless Steel (standard height and diameter: 4 or 6 m and 129 mm, respectively), irrespective of the adaptability requirements of each project. This element integrates a beaconing system with amber LED optics, a presence detector, and a Stainless Steel LED luminaire equipped with an optical LED module immersed in an argon gas atmosphere. The finish of this set is obtained by a thermal coating process or through the application of two-component polyurethane. The vocation of these materials is to avoid the degrading action of highly aggressive environments, such as coastal areas.
The Prudenza luminaire incorporates one of the world’s most long-lasting and recycled materials—steel. Reintroducing steel to the production cycle of other industries at end-of-useable life will produce significant energy savings compared with other metals. Glass is 100% natural and fully recyclable, thereby minimizing the environmental impact of its transformation process. With the support of the first European glass processing line powered by solar technology, the carbon footprint of this series has been substantially reduced. Following the implementation of ISO 14001 and the development of the sustainability master plan, SETGA has striven to reduce the carbon footprint of all its components, by designing a long-term recycling system for each one.
With the Argon Pressurised System (APS)® Prudenza series’ optical and electronic components are encapsulated in a pressurised atmosphere of argon gas. A watertightness level of IP68 is ensured, making the system resistant to complete and continuous immersion far beyond the
requirements of any regulation.
The inert atmosphere in the optical-electronic module guards against condensation, moisture and salinity intrusion, thereby preventing an accelerated ageing process of the system’s sensitive components. This protective shield is essential in areas where air salinity is a critical
lifetime factor for any optical and electronic component.
The ability of this system to preserve the lifetime, efficacy and chromatic quality of the luminaire reduces Up toal Cost of Ownership (TOC) and
maintains high demanding visual comfort standards.
The Prudenza luminaire is based on the principle of direct thermal dissipation between the LED PCB and the compact aluminium chassis. The dissipation body comprises a continuous heat pipe of anodized aluminium 6063-T6, which achieves thermal conductivity levels of 200 W/metre Kelvin, compared to 130 W/metre Kelvin of aluminium injection.
The low porosity of anodized aluminium plus a thermal pad over the contact surface between the PCB and the dissipation body significantly reduce the diode’s junction temperature.
The redefined composition of the optical system delivers a 55% reduction in reflection levels, a significant drop when compared with market standards that apply a secondary lens scheme and a tempered glass cover. HTS technology enables optical performance levels similar to those obtained with a direct lens system, increasing the overall efficacy of the luminaire (lm/W) by 8%.
Dimensions and installation
The PRUDENZA set is characterized by the union of luminaire and column. It would be available in high total columns from 5.9 to 8.9 meters.
The luminaire module is Ø630 and 66mm high. This module is already installed in the Ø129mm column.
As an extra, the PRUDENZA can have a presence sensor module, in addition its flashing orange light flashers give drivers warning.
The installation will be carried out on a base of 200x200mm and M18 bolts.