Urban Light Pollution Risk Assessment Model Based on Analytic Hierarchy Process

Due to the serious problem of light pollution in the world, this article establishes a model and provides specific suggestions for reducing the impact of light pollution on humans. Firstly, four indicators were determined using some data to measure the risk level of light pollution, and these data have a strong correlation with the light pollution index of each city. We used Analytic Hierarchy Process (AHP) to test four indicators, and secondly, established evaluation models for multiple indicators in a large number of cities using TOPSIS method. Rate these places to obtain corresponding levels of light pollution risk. Next, an analysis will be conducted on large cities with significantly severe light pollution indices, and the impact of implementing strategies in these cities will be utilized to evaluate the plan. Finally, several methods were proposed to improve light pollution, and the model was introduced to demonstrate its strong generality.