Safety

We propose a hybrid ITS safety architecture that combines vehicle-to-vehicle communication and
vehicle-to-roadside sensor communication. Opposed to dedicated roadside units, which require major investments for purchase, installation and maintenance, roadside wireless sensor and networking technology represents a cost-effective solution and can leverage the deployment of the system as a whole. Among the various services of the hybrid communication system, the paper introduces accident prevention and post-accident investigation. We present a system and protocol architecture with a fully distributed concept for efficient and secure storage of sensor data. For deployment, this architecture will likely be combined with an alternative approach using dedicated road-side units as a centralized network element for communication and data storage. For the proposed system, we describe the main components (radio, networking and services, security). Finally, we describe our prototype implementation and experimental testbed featuring hardware and software platforms for vehicle on-board units and sensor nodes.

NEC Laboratories Europe

Presented at the 15th World Congress on Intelligent Transport Systems, November 16-20, 2008, New York, New York

The cooperative project COOPERS (Co-operative networks for intelligent Road Safety),
funded by the European Union, focuses on the development of innovative telematic applications
on the road infrastructure with the long term goal of a „co-operative traffic management“
between vehicle and infrastructure, to reduce the self-opening gap of the development
of telematics applications between car industry and infrastructure operators.
The goal of COOPERS is the enhancement of road safety by direct and up to date traffic information communication between infrastructure and motorized vehicles on a motorway section.
COOPERS focuses on convergent communication networks (I2V) to exchange safety
relevant real time on-trip information in a step by step approach.

Technische Universität Berlin

Presented at the 15th World Congress on Intelligent Transport Systems, November 16-20, 2008, New York, New York

A safety support system to help reduce traffic accidents involving pedestrians has been developed using cellphones. This system was tested in a real field environment, which consisted of a residential city area where many blind intersections due to hills, house walls and other obstacles can be found. This paper introduces the system outline and its evaluation contents.

Nissan Motor CO.

Presented at the 15th World Congress on Intelligent Transport Systems, November 16-20, 2008, New York, New York

Although the death rate of traffic accidents is decreasing in Japan, the number of people
injured remains at a high level. While on-board mechanism have been developed and
actualized, there are still collision types which are difficult to solve by the vehicle alone. To
solve this difficulty, Vehicle-Infrastructure communication safety support, the DSSS (Driving
Safety Support System), using Infrared Beacon is taking an active role in Japan. Here, we will
introduce the progress of FOT (Field Operational Test) taken by the Kanagawa DSSS
Analysis WG. which is one of the DSSS activities.

Universal Traffic Management Society of Japan

Presented at the 15th World Congress on Intelligent Transport Systems, November 16-20, 2008, New York, New York

The objective of this analysis is to devise a new positioning method of the pedestrian in a
blind area, using the radio waves propagated from a transmitter carried by him. In order to
analyze propagation characteristics of radio waves arriving from the blind area, we have
conducted simple experiments and calculated it by the ray-trace method. The analysis shows
that the diffracted waves are dominant paths for the horizontal polarization, whereas the
reflected waves are dominant paths for the vertical polarization. The results indicate that we
should focus on the polarization characteristics in our study that analyzes arrival radio waves
propagated from the blind area.

Panasonic Corporation

Sophia University

Presented at the 15th World Congress on Intelligent Transport Systems, November 16-20, 2008, New York, New York