Study on the Evaluation Index System of Smart Construction Site Based on DEMATEL-ANP

In today's era of rapid development of intelligent information technology, with the use of technological means to upgrade the traditional construction sites have become a major trend, with the concept of smart city, Smart construction sites also respond to the changes of the times as a new management concept came into being, aimed at the whole life cycle of construction projects, the full use of BIM technology, Internet of Things technology, intelligent technology and other types of information-based intelligent technology It aims to improve the project site management level and realize Smart construction sites control by making full use of various information technology such as BIM technology, IOT technology, intelligent technology, etc., to control and manage key factors such as "human, machine, material, method and environment", and thus form an intelligent integration platform for interconnection and information sharing. However, the existing theory of Smart construction site is still in the exploration stage, and there is no corresponding evaluation index system to clarify the stage of the Smart construction site. Based on this, this paper will build an evaluation index system of Smart construction site with the help of scientific evaluation methods in order to better understand the stage of Smart construction site. This paper only studies the internal influencing factors of the smart construction site, so the constituent factors are the internal influencing factors. Then, with the help of DEMATEL method, the factors constituting the smart construction site system are analyzed, and the evaluation index levels are scientifically divided based on the weight of each factor. After that, ANP method is used to calculate the final weight and key factors of each indicator.