Recreating and improving the quality of large urban structures using lighting during the day and night (Case study of Shiraz Haeri Shirazi Highway)

What is imprinted in the minds of citizens about the city and urban spaces is often related to the image they receive of their city during the day. Proper lighting of the city and its spaces will not only help people to read more, but also create a clear and appropriate mental image of the city at night. Proper lighting can be considered one of the factors that strengthens the identity of a place and enhances its special personality. With proper lighting, the attractiveness and consequently the vitality of the city or the tranquility of its spaces can be increased and the presence of citizens in the space can be strengthened. Signs are part of urban equipment that are placed outside closed spaces, and their main function is to convey a message from a person, group, or institution to other citizens in the form of signs, whether written or visual. Given the location of the tunnels on the Haeri Shirazi Highway and the high traffic on this axis, the issue of lighting during the day and night is of great importance for traffic, which will be of great importance in terms of safety and beauty.. Accordingly, the main goal of this article is to study the quality of the environment around the Shiraz Municipality koohsar Highway tunnels at night through lighting. The research method is descriptive and analytical, and the required data was collected through field studies and observations, and the questionnaire was completed randomly. The results of the study indicate that the lighting of the abovementioned building has been favorable in terms of environmental quality and has enhanced the character of this tunnels