This paper represents an overview on activities done in real Smart Cities scenarios using IoT Technologies for Intelligent Transportation Systems (ITS). Nowadays, there are several use cases related to IoT for ITS, such as connected and autonomous vehicles, cooperative transportation networks and smart roads in order to improve data propagation, create heterogeneous connectivity and low latency applications in high capacity environments. ITS techniques can be also applied on logistics, so accuracy on delivery and timing can be improved consider all the involved ecosystems, baseline and standardized architectures in interconnected Smart Cities for future development and integration. Secure correlations between vehicles and smart roads can optimize road safety and traffic flow, reduce incidents, avoid congestions etc. These technologies comprise also V2X (Vehicle to Everything). In this scenario, the cloud-based LoRa (Long Range) and mesh networks technologies, can play an important role for the propagation of intelligent sensed data and localization. The Smart Roads scenario is considered as one of the most attractive field in a Smart City environment. The right choice on technology, delay and frequency represents an important factor to be considered for standardization and engineering activities.