Abstract
This paper describes a new cooperative Intelligent Transportation System architecture that aims to enable collaborative sensing services. The main goal of this architecture is to improve transportation efficiency and performance. The system, which has been proven within the participation in the ICSI (Intelligent Cooperative Sensing for Improved traffic efficiency) European project, encompasses the entire process of capture and management of available road data. For this purpose, it applies a combination of cooperative services and methods for data sensing, acquisition, processing and communication amongst road users, vehicles, infrastructures and related stakeholders. Additionally, the advantages of using the proposed system are exposed. The most important of these advantages is the use of a distributed architecture, moving the system intelligence from the control centre to the peripheral devices. The global architecture of the system is presented, as well as the software design and the interaction between its main components. Finally, functional and operational results observed through the experimentation are described. This experimentation has been carried out in two real scenarios, in Lisbon (Portugal) and Pisa (Italy).
Highlights
The aim of this work is to define an innovative and fully distributed architecture to enable cooperative sensing in Intelligent Transportation Systems (ITS) environments
A GW refers to a physical entity, usually installed inside a Road Side Unit (RSU), Platform (DDP)
The high level interfaces, coloured in light grey, are instead already existing interfaces defined outside the project realm necessary to integrate particular functionalities required by the Data Distribution Platform (DDP)
Summary
The aim of this work is to define an innovative and fully distributed architecture to enable cooperative sensing in Intelligent Transportation Systems (ITS) environments. Important research projects, like CVIS [7], adopted and developed this new strategy to achieve cooperativeness in ITS: vehicles, road-side infra-structure, central systems and personal devices are no longer linked to each other through a static and vertical relationship. Instead, they are seen as “nodes” belonging to a common network. C-ITS architectures, establishing a common reference system for C2X communications and performing successful large-scale field trials With these new approaches, traffic and travel models and ITS applications specialized to operate on a local scale can be configured in order to fit the needs of the surrounding areas.
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