# Smart City Actions Integrated into Urban Planning:
## 2 Literature Review  
Incessant population growth and urbanization have intensified the development of actions aimed at reconciling citizens' lifestyles with environmental and governance actions. The application and innovation of communications technologies played a vital role in transforming traditional urbanization into a more intelligent and comfortable space for citizens [16]. Today's urbanization requires strategies and planning for the modernization of urban life, through advanced information and communications technology solutions aimed at digital technology infrastructure for cities [17]. Smart sustainable urbanism involves urban intelligence functions' development as an advanced form of decision support, representing new conceptions of how smart cities operate and use new forms of urban simulation, as well as optimization and forecasting methods [5]. The growing interest and the need to solve challenges related to urbanization provide opportunities for private and public investment in the development and implementation of technology, which requires the effective participation of researchers and companies, in an integrated and associated manner, searching for technological implementations by subject area [18]. The urban population performs actions with a direct impact on climate change, requiring strategies to create a new quality in urban spaces, which not only maintains environmental sustainability but also improves quality of life and environmental urbanization [19]. A smart city is associated with a better expected quality of life in urban environments through the relationships between local entities, companies, and citizens, where the city develops the capacity for urban interaction, providing intelligent services that aid citizens' coexistence and interactions with urban spaces [20; 21]. The development of technological resources and applied tools encourages collaboration and communication between different smart city entities, helping to promote innovation and the construction of collaborative and creative application solutions for areas including education, health, energy, industry, environment, and security [22]. The actions integrated into urban spaces stimulate service innovation in health, transportation and parking, surveillance and maintenance of public areas, cultural patrimony preservation, and urban waste collection. Communication technology solutions integrated with the IoT in the urban context generate better-quality services for citizens, collaborating with action development for human interactivity and digital service expansion [6]. Innovative actions and strategies aimed at urban environmental sustainability are evident in European cities. For example, in Santander, Spain, more than 20,000 sensors have been installed, allowing interaction via an app (SmartSantander). The users can see the locations of buses, cabs, and police cars in real time, as well as traffic, tourist, and public space usage information. Access is public, with connection via cell phone or computer with internet access, and with augmented reality available [23]. In London, England, strategic urban mobility actions were developed, with public transport being a reference. The platform WebCAT allows for checking the means of transport available, as well as monitoring travel times, both in the central region and in peripheral parts. Other actions have been adopted through technological innovation and public-private partnerships, including the integration service between buses, trains, metro, and river lines using the Oyster Card, the bicycle rental service with Santander Cycles, and a toll system to control vehicles' circulation [24]. The search for a balance between economic development, ecological preservation, and social well-being requires advanced technologies, including artificial intelligence and the IoT, emphasizing urban environments' ecological balance and resource efficiency.