3,865 research outputs found
Synergizing Roadway Infrastructure Investment with Digital Infrastructure for Infrastructure-Based Connected Vehicle Applications: Review of Current Status and Future Directions
The file attached to this record is the author's final peer reviewed version. The Publisher's final version can be found by following the DOI link.The safety, mobility, environmental and economic benefits of Connected and Autonomous Vehicles (CAVs) are potentially dramatic. However, realization of these benefits largely hinges on the timely upgrading of the existing transportation system. CAVs must be enabled to send and receive data to and from other vehicles and drivers (V2V communication) and to and from infrastructure (V2I communication). Further, infrastructure and the transportation agencies that manage it must be able to collect, process, distribute and archive these data quickly, reliably, and securely. This paper focuses on current digital roadway infrastructure initiatives and highlights the importance of including digital infrastructure investment alongside more traditional infrastructure investment to keep up with the auto industry's push towards this real time communication and data processing capability. Agencies responsible for transportation infrastructure construction and management must collaborate, establishing national and international platforms to guide the planning, deployment and management of digital infrastructure in their jurisdictions. This will help create standardized interoperable national and international systems so that CAV technology is not deployed in a haphazard and uncoordinated manner
VANET Applications: Hot Use Cases
Current challenges of car manufacturers are to make roads safe, to achieve
free flowing traffic with few congestions, and to reduce pollution by an
effective fuel use. To reach these goals, many improvements are performed
in-car, but more and more approaches rely on connected cars with communication
capabilities between cars, with an infrastructure, or with IoT devices.
Monitoring and coordinating vehicles allow then to compute intelligent ways of
transportation. Connected cars have introduced a new way of thinking cars - not
only as a mean for a driver to go from A to B, but as smart cars - a user
extension like the smartphone today. In this report, we introduce concepts and
specific vocabulary in order to classify current innovations or ideas on the
emerging topic of smart car. We present a graphical categorization showing this
evolution in function of the societal evolution. Different perspectives are
adopted: a vehicle-centric view, a vehicle-network view, and a user-centric
view; described by simple and complex use-cases and illustrated by a list of
emerging and current projects from the academic and industrial worlds. We
identified an empty space in innovation between the user and his car:
paradoxically even if they are both in interaction, they are separated through
different application uses. Future challenge is to interlace social concerns of
the user within an intelligent and efficient driving
Performance evaluation of vehicular networks in urban environments
With the development of all kinds of science and technology nowadays, people are paying more attention to the various aspects of smart cities, especially vehicular networks. Based on the increase in traffic demand, people's dependence on vehicles is also growing gradually, which leads to an intelligent social transportation system being crucial. However, inevitably, there will always be some unexpected car accidents in the urban traffic environment. In this paper, we would mainly focus on the performance evaluation of vehicular networks with a car accident in the urban centre of Barcelona. And we will start from different angles for a multi-dimensional analysis of the impact of different vehicles and environmental factors on urban traffic. In this project, the performance of the vehicular network in the Eixample district would be evaluated from the following four perspectives:1. The configuration of the vehicles 2. The nominal road speed around accident 3. The transmission range 4. The rebroadcasting scheme of the accident message. Through the data analysis of the packet delay, the percentage of warned vehicles, and the warning distance respectively, to explore the impact of diverse factors on the vehicle network and find a better scheme to improve the intelligent transportation system (ITS) in the urban environment
Smart mobility: a survey
Internet of Things (IoT) describes a world where
everyday objects are always connected to the Internet, allowing
them to communicate and interact with each other. By
connecting these everyday objects to the Internet and making
them available everywhere at any time, IoT allows to remotely
monitor, manage, and gather status information about them and
their surrounding environment. IoT is a revolutionary concept
that brought new experiences to everyday life and enabled Smart
City initiatives all over the world. These initiatives are using a
combination of technology paired with physical infrastructure
and services, to improve people’s quality of life. One of the high priority domain to support the Smart City’s vision is the field of
Smart Mobility. This paper reviews the current IoT approaches
and concepts related to Smart Cities and Smart Mobility. In
addition, it analyzes distinct features and numerous applications
covering both Intelligent Transportation and Real Time Traffic
Management Systems.info:eu-repo/semantics/publishedVersio
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