scholarly journals An adaptive dissemination mechanism for inter-vehicle communication-based decentralized traffic information systems

2006 ◽  
Author(s):  
Huaying Xu ◽  
M. Barth
Keyword(s):  
Information Systems ◽  
Traffic Information ◽  
Vehicle Communication

Scalable Data Dissemination for Inter-Vehicle-Communication: Aggregation versus Peer-to-Peer (Skalierbare Informationsverbreitung für die Fahrzeug-Fahrzeug-Kommunikation: Aggregation versus Peer-to-Peer)

2008 ◽  
Vol 50 (4) ◽  
Author(s):  
Christian Lochert ◽  
Jedrzej Rybicki ◽  
Björn Scheuermann ◽  
Martin Mauve
Keyword(s):  
Information Systems ◽  
Data Dissemination ◽  
Peer To Peer ◽  
Traffic Information ◽  
Large Area ◽  
Direct Communication ◽  
Client Server ◽  
Vehicle Communication ◽  
Advantages And Disadvantages ◽  
Peer To Peer Systems

SummaryThis paper investigates the scalable dissemination of data between vehicles. The application context of this work is traffic information systems where cars are not only consumers but also producers of information. The key challenge in those systems is to ensure scalability in an environment where data is provided and requested by all participating vehicles in a large area. We discuss two fundamentally different approaches to this problem: using direct communication between cars and compressing the data via aggregation versus relying on infrastructure. The latter approach can further be divided into client-server and peer-to-peer systems. We outline all three approaches and highlight their advantages and disadvantages.

GWAP as a Tool to Analyze, Design, and Test Geo-Social Systems

2013 ◽  
pp. 380-407 ◽  
Author(s):  
Martina Deplano ◽  
Giancarlo Ruffo
Keyword(s):  
Social Media ◽  
Information Systems ◽  
Real Time ◽  
Mobile Devices ◽  
General Framework ◽  
Social Dynamics ◽  
Social Systems ◽  
Traffic Information ◽  
Real Time Traffic ◽  
Social Events

In this chapter, the authors discuss the state-of-the-art of Geo-Social systems and Recommender systems, which are becoming extremely popular for users accessing social media trough mobile devices. Moreover, they introduce a general framework based on the interaction among those systems and the “Game With A Purpose” (GWAP) paradigm. The proposed framework/platform can help researchers to understand geo-social dynamics in order to design and test new services, such as recommenders of places of interest for tourists, real-time traffic information systems, personalized suggestions of social events, and so forth. To target the governance of such complexity, relevant data must be collected by the investigators, shared with the community, and analyzed to find dynamical patterns that correlate spatial-temporal information with the user’s preferences and objectives. The authors argue that the GWAP approach can be exploited to successfully satisfy many of these tasks.

In-vehicle Traffic Information Systems in Europe: Never Mind the (Band)Width, Feel the Quality

2001 ◽  
Vol 54 (3) ◽  
pp. 329-335 ◽  
Author(s):  
Jordi Calafell ◽  
Martin Pyne
Keyword(s):  
Information Systems ◽  
Service Providers ◽  
Road Traffic ◽  
Traffic Information ◽  
Navigation Systems ◽  
Traffic Flows ◽  
Planning Stage ◽  
Free Service ◽  
Major Player ◽  
On The Road

The ever-increasing number of vehicles on the road has created a serious demand for traffic information not only on the move but also at the planning stage of a journey. While on the move, the driver will be able to re-route his/her journey avoiding traffic congestion, but this information could be even more valuable before starting the journey. Today there are differences between the three main ITS markets (USA, Japan and Europe). Japan is leading the way, with the introduction in 1995 of the Vehicle Information Communication System (VICS), which is a free service. Vehicles are equipped with VICS receivers taking information from a network of road beacons installed on main roads, transmitting traffic flows by infrared rays, wave beacons, and FM multiplex broadcast. Europe has been involved in driver information systems from the early '90s when RDS was developed, which is another free service, and most of the car radios sold in Europe are able to process RDS signals. Since then, new free services have been developed – for example, RDS-TMC. In the UK, the private sector has been heavily involved recently, its major player being Trafficmaster. The Trafficmaster system is based on a network of traffic detection sensors, which covers all major UK motorways and most of the major A roads, with plans to expand into the continent. Trafficmaster collects road traffic flows and disseminates this information to its subscribers via a range of technologies, including GSM. The quality of the information supplied by the free and subscription services can be improved by being fully integrated with on-board navigation systems and by providing more detailed and wider types of information. All current methods are described/analysed and compared in this paper, with future enhancement highlighted. One of the main limitations lies in current data transmission routes, which are not fast enough to support the data required for an optimal use of the system. Some technologies available will potentially allow the many service providers to transmit information.

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