In smart cities, the mobility of vehicles can be utilized to collect data produced by connected objects in the environment. In the convergence between the Vehicle-to-Everything (V2X) communications and the Intelligent Transportation System (ITS) vision, several ITS infrastructures will be available to assist in the data delivery to the central server. With the unique data collection environment in place, a routing protocol needs to be developed to utilize all the components efficiently. In this thesis, our main research question focus on whether a simple and efficient Vehicular Delay Tolerant Networks (VDTN) routing protocol for delay-tolerant applications can be designed and achieves high performance with the ease of adoption and standardi...