Abstract
Integration is currently a key factor in intelligent transportation systems (ITS), especially because of the ever increasing service demands originating from the ITS industry and ITS users. The current ITS landscape is made up of multiple technologies that are tightly coupled, and its interoperability is extremely low, which limits ITS services generation. Given this fact, novel information technologies (IT) based on the service-oriented architecture (SOA) paradigm have begun to introduce new ways to address this problem. The SOA paradigm allows the construction of loosely coupled distributed systems that can help to integrate the heterogeneous systems that are part of ITS. In this paper, we focus on developing an SOA-based model for integrating information technologies (IT) into ITS to achieve ITS service delivery. To develop our model, the ITS technologies and services involved were identified, catalogued, and decoupled. In doing so, we applied our SOA-based model to integrate all of the ITS technologies and services, ranging from the lowest-level technical components, such as roadside unit as a service (RSUAAS), to the most abstract ITS services that will be offered to ITS users (value-added services). To validate our model, a functionality case study that included all of the components of our model was designed.
Highlights
The steady increases in the population and advances in transportation systems have become the key factors in the growth of transportation
In the field of intelligent transportation systems (ITS), traditional software methodologies, such as common object request broker architecture (CORBA), remote method invocation (RMI), and distributed component object model (DCOM), have been used to integrate ITS solutions, but they are highly dependent on the programming language, which has provoked the creation of ad hoc systems as well [7]
We presented, developed, and tested a SOAbased model for the value-added ITS services delivery
Summary
The steady increases in the population and advances in transportation systems have become the key factors in the growth of transportation. Their services are specific, difficult to integrate and extend, and difficult for other similar ITS proposals to reuse This situation prevents the agile management of the transportation infrastructure and decreases the incorporation of new technologies, the changing of existing services, and the generation of new value-added services. In other domains, such as e-business, manufacturing, and the automotive industry, the service-oriented architecture (SOA) paradigm has been proposed as the most appropriate solution for solving problems in dynamic and heterogeneous environments [5, 6]. We focused on the navigation systems, which are usually not able to offer dynamic information, despite there being a wide variety of technologies that offer information from ITS infrastructures
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