Application of 2D FFT Spectra and Correlation-Spectral Analysis to Assess Micro-Meteorological and Microbiological Weathering the Pavement Lights, Sidewalk Prisms and Other Anidolic Optics in Water

Pavement lights, also known as sidewalk prisms or anidolic optics, play a crucial role in urban infrastructure by providing natural illumination to underground spaces while enhancing pedestrian safety.However, the effective performance and longevity of these lighting systems are heavily dependent on their resistance to environmental factors, particularly moisture and corrosion.In civil engineering and hydraulic engineering, the implications of inadequate moisture protection are profound.Pavement lights are often installed in environments exposed to rain, snow, and other forms of precipitation.Without proper sealing and corrosion resistance, these fixtures can suffer from water infiltration, leading to electrical failures, rust, and the degradation of materials.To ensure durability and reliability, it is imperative that pavement lights comply with established protection standards, such as IP67 or IP68.Adhering to these standards is essential for preventing corrosion and biological weathering, which can severely compromise the structural integrity and functionality of pavement lights.Biological weathering, which can occur when moisture facilitates the growth of mold or algae on or within the lighting fixtures, further exacerbates the problem.Firstly, we offer a complete overview of the mechanisms of effects accompanying the degradation of glass in such pavement lamps, and secondly, we offer methods for analysing the behaviour of lamps based on 2D FFT and correlation-spectral analysis methods, including in the time-resolved ones.