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In large urban areas dedicated fixed traffic sensors are deployed on major freeways (e.g. COMPASS and RESCU systems in Ontario) enabling traffic operators to collect high quality road condition information in real time. However, almost no real time information is available for all other roadways and full instrumentation of all major highways and arterials is cost prohibitive. Consequently, travellers are unable to make informed decisions about the best travel mode, departure time, and route, and traffic managers are unable to predict or monitor the effect of management strategies for roadways outside of the instrumented freeway corridors. The lack of information causes frustration on the part of travellers and transportation system managers and often results in sub-optimal decisions. New developments within the wireless communication field (dedicated probe systems, cell phone based systems or Vehicle Infrastructure Integration) provide the opportunity to obtain traffic condition inf.
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Sensors, and Command, Control, Communications, and Intelligence (C3I) Technologies for Homeland Security and Homeland Defense VI
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Transportation engineering has evolved into a broad multidisciplinary field during the last few decades. This multidisciplinary nature of the profession has become more profound and visible since the advent of the Intelligent Transportation Systems (ITS) early last decade. The remarkable advances in computers, communications, electronics, control, and other related technologies have found important applications in the transportation system. Universities are
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Intelligent Transportation Systems
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Wireless vehicular cooperative systems have been identified as an attractive solution to improve road traffic management, thereby contributing to the European goal of safer, cleaner, and more efficient and sustainable traffic solutions. V2V-V2I communication technologies can improve traffic management through real-time exchange of data among vehicles and with road infrastructure. It is also of great importance to investigate the adequate combination of V2V and V2I technologies to ensure the continuous and costefficient operation of traffic management solutions based on wireless vehicular cooperative solutions. However, to adequately design and optimize these communication protocols and analyze the potential of wireless vehicular cooperative systems to improve road traffic management, adequate testbeds and field operational tests need to be conducted. Despite the potential of Field Operational Tests to get the first insights into the benefits and problems faced in the development of .
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Modernization , migration, and globalization increases road usage. The population of the world has been increasing, road traffic has also been getting more and more congested, also increased business activities result in greater demand for cars and vehicles for transportation. With fuel price soaring and potential threats of fuel shortage, we are now faced with greater challenges in the field of transportation systems. Electronics technology impacted the construction of cars, embedding them with sensors and advanced electronics, making cars more intelligent, sensitive and safe to drive on. It will create major economic, social, and global impact through the transformation. Intelligent Transportation uses numerous technologies to assist and manage transportation. We will implement co - ope rative traffic management involving vehicles , wireless sensor network, and roadside infrastructure .Vehicles can detect, and avoid dangerous or unwanted situations. For example, timely notifications about lane changes , and unsafely approaching vehicl es, accident notifications, notifications about dangerous or heavy traffic conditions within a larger region with the help of other vehicles . A key aspect of Intelligent Transportation systems is to expand the time horizon of information relevant to dr iving safety and transportation efficiency, but also introduce new information sources, and improve its quality.
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Pomorstvo: Scientific Journal of Maritime Research
The possibility to enable cooperative concept in urban traffic systems is challenging because of large amount of traffic data that must be collected, processed and distributed to end users. The main objective is to establish communication between three main subsystems of traffic system: driver, vehicle and infrastructure so that they can cooperate in real time traffic environment. This paper describes various wireless communication technologies that can be used to achieve real time data exchange, and potential problems and limitations. Internet of Things (IoT) concept can be used as supportive concept for collection, processing and distribution of traffic data with one main goal - to increase urban traffic system quality in overall. © Faculty of Maritime Studies Rijeka, 2015.
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