The construction industry has been experiencing a rapid increase in complex projects for the last two decades. Simultaneously, project complexity has received more attention from academics and practitioners worldwide. Many studies suggest that perceiving complexity is critical for successful construction project management. This study investigates the current status and future trends in construction project complexity (CPC) literature from the Scopus database. This review systematically uses bibliometric and scientometric methods through co-occurrence and co-citation analysis. First, 644 academic documents were retrieved from the Scopus database. Then, co-occurrence and co-citation analysis were performed along with network visualization to examine research interconnections’ patterns. As a result, relevant keywords, productive authors, and important journals have been highlighted. The prominent research topics within the literature on construction project complexity focus on the following topics: identifying and measuring project complexity, schedule performance and cost estimation, system integration and dynamic capabilities, and risk assessment and uncertainty. Finally, the potential research directions are developing towards safety performance, organizational resilience, and integrated project delivery (IPD). The study still has a limitation. The review focuses only on the academic documents retrieved from the Scopus database, thus restricting the coverage of the reviewed literature relating to construction project complexity. To the best of the author’s knowledge, this study is the first study that provides a systematic review of the literature from the Scopus database on construction project complexity.

Availability of internet access is one of the needs for tourists when traveling. Unfortunately, the availability of access is quite limited when in a tourist destination, usually Wi-Fi also generally uses a closed system that cannot be accessed by just anyone, except those who get access keys only. This paper provides a solution for the model of internet access for tourists provided by Tourism Service Providers, by utilizing drone technology as an access point. In addition, this model also provides services to track the position of tourists who spread and facilities for communication between tourists, especially for certain conditions, such as the occurrence of saturation for tourists while in one of the tourist destinations.

Rehabilitation is a key-initiative undertaken to overcome a prevailing problem in

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