Lighting pedestrian crossings play an important role in ensuring the safety of pedestrians on the road, especially at night or in conditions of reduced visibility. Currently functioning normative and formal requirements, which are the basis for the design of lighting for pedestrian crossings, are described by criteria of lighting intensity. Each of the existing solutions operates in an urban environment, and at the stage of design and operation, the obtained values of the produced luminance contrast of the pedestrian silhouette and its background are not known. The main purpose of the article is to compare, based on luminance parameters, the three lighting solutions used at pedestrian crossings. This article presents and describes the method of determining the luminance contrast based on luminance measurements of the pedestrian silhouette and its background. Detailed results of measurements of luminance parameters at selected pedestrian crossings are presented. An analysis of the results was made with a breakdown of typical lighting solutions used in urban conditions. The differences between standard lighting were discussed, as well as supplementary and dedicated lighting. The obtained ranges of luminance contrast levels occurring in urban conditions for individual solutions were determined. The energy indicator for each solution was determined.

In the opinion of the drivers, digital billboards and telebims are a potential threat to road traffic. Multimedia content with dynamically changing luminance level over time is often presented on emission media. The problem was highlighted when trying to regulate the requirements for dynamic media in law. The Ministry of Infrastructure and Development is in the process of drafting regulations aimed at limiting the emission parameters of light commercials used in the road environment. The limitation is to apply to the maximum luminance parameters emitted during the daylight and night, with the limitation to the built-up area and outside the built-up area. It is also proposed to limit the switching time of the image sequence and its luminance level. In the article have been describe the test procedure with presented sample measurement results. The object of research was medium-size advertising, where the illuminating surface was made with the use of semiconductor LED light sources. Obtained results undoubtedly indicate that there is a problem with measuring the parameters of advertising luminance with dynamically changing content.

The article relates to the problem of numerous accidents on pedestrian crossings on Polish roads, caused mainly by incorrect lighting. Adduced statistics show that a significant number of accidents involving pedestrians occur at pedestrian crossings, which mostly happen during the winter months and hours, which lack solar lighting. These factors show how vital for pedestrian safety is proper lighting. Disturbing statistics have contributed to taking the preventive steps by conducting road safety audits and lighting condition as-sessment in Warsaw in 2016. The article describes the procedure of safety audits carried out in the form of local visions by the use of specialized measurement tools at selected pe-destrian crossings and factors that should be considered when assessing the lighting status of pedestrian crossings. The results of measurements of vertical lighting intensity at pedes-trian crossings, measured for two directions of vehicle traffic, were analyzed. The state of illumination of pedestrian crossings was classified based on the subjective, objective, and final assessment introduced. Comments and recommendations regarding the improvement of the lighting condition at pedestrian crossings were summarized. The conclusions of the final report on the lighting of pedestrian crossings in Warsaw districts were presented, based on which classified the risk factors. After analyzing the obtained measurement re-sults and subjective assessments of auditors, corrective actions were proposed to improve the safety of people at pedestrian crossings.