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Concept Of Operations For Road Weather Connected Vehicle Applications
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Author :U.s. Department of Transportation Publisher :Createspace Independent Publishing Platform ISBN 13 :9781495386565 Total Pages :94 pages Book Rating :4.3/5 (865 download)
Book Synopsis Concept of Operations for Road Weather Connected Vehicle Applications by : U.s. Department of Transportation
Download or read book Concept of Operations for Road Weather Connected Vehicle Applications written by U.s. Department of Transportation and published by Createspace Independent Publishing Platform. This book was released on 2013-02-11 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: Weather has a significant impact on the operations of the nation's roadway system year round. These weather events translate into changes in traffic conditions, roadway safety, travel reliability, operational effectiveness, and productivity. It is, therefore, an important responsibility of traffic managers and maintenance personnel to implement operational strategies that optimize system performance by mitigating the effects of weather on the roadways. Accurate, timely, route-specific weather information allows traffic and maintenance managers to better operate and maintain roads under adverse conditions. Connected vehicle technologies hold the promise to transform roadweather management. Road weather connected vehicle applications will dramatically expand the amount of data that can be used to assess, forecast, and address the impacts that weather has on roads, vehicles, and travelers; fundamentally changing the manner in which weather-sensitive transportation system management and operations are conducted. The US Department of Transportation's Road Weather Management Program has developed this Concept of Operations (ConOps) to define the priorities for connected vehicle-enabled road-weather applications.
Book Synopsis Requirements for Road Weather Applications by : Infrastructure Applications Technical Committee
Download or read book Requirements for Road Weather Applications written by Infrastructure Applications Technical Committee and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inclement weather can have a significant impact on surface transportation systems. It can result in hazardous conditions for travelers due to poor visibility, or wet or icy roadways. Weather applications have the potential to provide additional data to surface transportation infrastructure owners and operators, allowing them to better assess the impacts of the weather environment on or around the roadway and to better manage the surface transportation system. Such weather applications can: Collect road weather data from connected vehicles and mobile devices, increasing the number of data sources available. Provide road weather related traveler information to travelers via connected vehicles and devices, such as when and where a hazardous condition exists. Provide the ability to manage road weather response on specific roadways.This SAE Standard specifies interface requirements between vehicles and infrastructure for weather applications, including detailed systems engineering documentation (needs and requirements mapped to appropriate message exchanges). The purpose of this SAE Standard is to enable interoperability supporting these weather applications over a communications technology agnostic interface. Weather is a significant factor in the management and operation of transportation systems. Most, if not all, transportation agencies consider weather-related applications to be of critical importance in providing safe and efficient transportation systems to the travelling public. This standard defines interface requirements to support a weather applications interface in a connected vehicle environment, with a focus on information exchanges between the infrastructure and connected vehicles. This document specifies a new message, new data frames, and data elements associated with road weather applications.
Book Synopsis Where the Weather Meets the Road by : National Research Council
Download or read book Where the Weather Meets the Road written by National Research Council and published by National Academies Press. This book was released on 2004-05-01 with total page 189 pages. Available in PDF, EPUB and Kindle. Book excerpt: Weather has broad and significant effects on the roadway environment. Snow, rain, fog, ice, freezing rain, and other weather conditions can impair the ability of drivers to operate their vehicles safely, significantly reduce roadway capacity, and dramatically increase travel times. Multiple roadway activities, from roadway maintenance and construction to shipping, transit, and police operations, are directly affected by inclement weather. Some road weather information is available to users currently, however a disconnect remains between current research and operations, and additional research could yield important safety and economic improvements for roadway users. Meteorology, roadway technology, and vehicle systems have evolved to the point where users could be provided with better road weather information through modern information technologies. The combination of these technologies has the potential to significantly increase the efficiency of roadway operations, road capacity, and road safety. Where the Weather Meets the Road provides a roadmap for moving these concepts to reality.
Book Synopsis Connected Vehicles by : Radovan Miucic
Download or read book Connected Vehicles written by Radovan Miucic and published by Springer. This book was released on 2018-10-24 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces concepts and technologies of Intelligent Transportation Systems (ITS). It describes state of the art safety communication protocol called Dedicated Short Range Communication (DSRC), currently being considered for adoption by the USDOT and automotive industry in the US. However, the principles of this book are applicable even if the underlying physical layer protocol of V2X changes in the future, e.g. V2X changes from DSRC to cellular-based connectivity. Fundamental ITS concepts include topics like global positioning system; Vehicle to Vehicle (V2V), Vehicle to Pedestrian (V2P), and Vehicle to Infrastructure (V2I) communications; human-machine interface; and security and privacy. Fundamental concepts are sometimes followed by the real-life test experimental results (such as in V2P Chapter) and description of the performance metrics used to evaluate the results. This book also describes equations and math used in the development of the individual parts of the system. This book surveys current and previous publications for trending research in the ITS domain. It also covers state of the art standards that are in place for the DSRC in the US, starting from the application layer defined in SAE J2735 all the way to physical layer defined in IEEE 802.11. The authors provide a detailed discussion on what is needed to extend the current standards to accommodate future needs of the vehicle communications, such as needs for future autonomous vehicles. Programs and code examples accompany appropriate chapters, for example, after describing remote vehicle target classification function a pseudo code and description is provided. In addition, the book discusses current topics of the technology such as spectrum sharing, simulation, security, and privacy. The intended audience for this book includes engineering graduate students, automotive professionals/engineers, researchers and technology enthusiasts.
Book Synopsis Potential Connected Vehicle Applications to Enhance Mobility, Safety, and Environmental Security by : Xiaosi Zeng
Download or read book Potential Connected Vehicle Applications to Enhance Mobility, Safety, and Environmental Security written by Xiaosi Zeng and published by . This book was released on 2012 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Exploring Weather-related Connected Vehicle Applications for Improved Winter Travel in the Pacific Northwest by : Xianming Shi
Download or read book Exploring Weather-related Connected Vehicle Applications for Improved Winter Travel in the Pacific Northwest written by Xianming Shi and published by . This book was released on 2020 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Analysis, Modeling, and Simulation Framework for the Safety Performance Assessment of the Wyoming Connected Vehicle Pilot Deployment Program by : Arash Khoda Bakhshi
Download or read book Analysis, Modeling, and Simulation Framework for the Safety Performance Assessment of the Wyoming Connected Vehicle Pilot Deployment Program written by Arash Khoda Bakhshi and published by . This book was released on 2021 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt: Traffic crashes impose a significant socio-economic cost on societies. According to the World Health Organization (WHO), 1.2 million people die every year, and more than 50 million people are injured due to fatal and non-fatal crashes globally. Safety concerns are more serious on rural corridors that play crucial roles in freight movement, such as Interstate 80 (I-80) in the State of Wyoming. Being affected by Wyoming’s adverse weather conditions, high altitude, challenging geometric characteristics, and critical traffic composition, there has been a notable crash and critical crash rate on 402-miles of this major freight corridor in Wyoming. To alleviate these safety concerns, the United States Department of Transportation Federal Highway Administration (USDOT FHWA) selected the Wyoming Department of Transportation (WYDOT) to deploy a Connected Vehicle (CV) Pilot Program along I-80 in Wyoming (WYDOT CV Pilot). The WYDOT CV Pilot focuses on the needs of the commercial vehicle operator and will develop CV applications to support a flexible range of services under Vehicular Ad-hoc Network (VANET), including roadside alerts, parking notifications, and dynamic travel guidance. In this regard, evaluation of the safety impacts of the CV Pilot is central to the USDOT’s strategic goals. The literature pointed out that the Market Penetration Rate (MPR) of CVs should be large enough to ensure safety and operational benefits of CVs. However, at early stages of the WYDOT CV Pilot, CVs will be contributing to a small fraction of the entire traffic stream, challenging traditional safety performance evaluation methodologies to assess the effectiveness of the CV technology. With these concerns, a comprehensive Analysis, Modeling, and Simulation (AMS) framework in addition to reliable baseline Analyses are required to scrutinize the safety performance of CVs under various MPR. These requirements have been fulfilled in this research through the use of advanced statistical modeling, Machine Learning, Deep Learning, data mining techniques, data visualization, and taking practical advantages of simulation- and driving simulator-based analyses. In the developed baseline and under the concept of Real-Time Risk Assessment (RTRA), significant real-time traffic-related variables contributing to crash and critical crash occurrences on the 402-miles I-80 in Wyoming during CV pre-deployment were identified. Using advanced statistical modeling and data visualization tools provided by Machine Learning techniques, the causal effect of these significant factors on the crash/ critical crash probabilities were explored. These causations are expected to be affected due to CV technology under notable MPRs in the future. Accordingly, the conducted baseline will be used as a benchmark against explored crash causations during CV post-deployment to grasp how this technology alleviates or changes the causality patterns, revealing the WYDOT CV Pilot safety performance. Furthermore, based on the preprocessed real-time traffic observation from the RTRA, the research calibrated and validated a reliable AMS framework to assess the safety effectiveness of the WYDOT CV Pilot that mainly goes around level-0 and level-1 of automated driving systems. At these levels, drivers are in charge of the execution of steering, acceleration/deceleration, and monitoring of the driving environment; thus, the human factor contributing to more than 90% of traffic crashes is still in that safety loop. Having said that, the AMS framework primarily aims to show how various CV applications, designed under WYDOT CV Pilot, would alter CV drivers’ behavior under traffic critical safety events and measure the effect of this alteration on I-80 traffic safety performance. Accordingly, drivers' behavioral alterations due to CV notification were quantified under the concept of with/without analysis and in a series of comprehensive high-fidelity driving simulator experiments conducted at the University of Wyoming Driving Simulator Lab (WyoSafeSim). These quantifications were analyzed separately and were conflated with traffic microsimulation modeling to reveal the safety effects of CV technology on the I-80 traffic stream under varying CV MPRs. This dissertation's findings and insights would be of interest to the WYDOT, the USDOT FHWA, and practitioners in the safety domain. The provided crowd-sourced real-time traffic dataset in the conducted baseline would help the WYDOT in understanding the current safety performance of I-80, identifying black-spot points in high-risk I-80 segments, and developing proactive countermeasures and interventions for Active Traffic Management (ATM) to alleviate the risk of traffic crashes on this major freight corridor. The data-driven crowdsourcing procedure performed on the AMS framework would shed some light on realizing the impact of CV technology on enhancing drivers’ situational awareness and minimizing the rate of motor vehicle crashes, which is not limited to I-80 in Wyoming. The integration of a high-fidelity driving simulator with traffic microsimulation modeling, as a two-pronged approach applied in the AMS framework, would show a fruitful pathway for the safety performance assessment of other CV pilots deployed by the FHWA with small CV MPRs at early deployment stages. Besides, beyond the main scope of assessing CV applications designed for WYDOT CV Pilot, the developed AMS framework could be utilized to evaluate the safety effect of other CV applications, such as the application of CV Variable Speed Limit (VSL) on lengthy rural corridors for the sake of spatiotemporal speed harmonization. The developed Road Weather Connected Vehicle Applications AMS framework was further extended by incorporating driver behavior and performance in adverse weather conditions utilizing a comprehensive Naturalistic Driving Study (NDS) dataset from the second Strategic Highway Research Program (SHRP2). The developed AMS framework could be helpful for a wide array of safety and operations of the next generation active traffic management.
Download or read book Fog Computing written by Zaigham Mahmood and published by Springer. This book was released on 2018-07-12 with total page 301 pages. Available in PDF, EPUB and Kindle. Book excerpt: This authoritative text/reference describes the state of the art of fog computing, presenting insights from an international selection of renowned experts. A particular focus is provided on development approaches, architectural mechanisms, and measurement metrics for building smart adaptable environments. The coverage also includes important related topics such as device connectivity, security and interoperability, and communication methods. Topics and features: introduces the core concepts and principles of fog computing, and reviews the latest research and best practice relating to fog/edge environments; discusses the vision for an Internet of Things (IoT) in terms of fog computing and other related distributed computing paradigms, such as cloud computing; presents a survey of the key issues and broader aspects of the fog paradigm, as well as the factors that affect adoption of fog computing; examines frameworks and methodologies for fog-based architecture design, improving performance, and measuring quality of experience; proposes tools and methodologies for analyzing large amounts of sensor data from smart city initiatives; describes approaches for designing robust services, management of data-intensive applications, context-aware data analysis, and vehicular networking; identifies potential future research directions and technological innovations in relation to distributed computing environments such as the IoT. This enlightening volume offers essential perspectives for researchers of distributed computing and computer networking, as well as for advanced undergraduate and graduate students pursuing interests in this area. Professional engineers seeking to enhance security and connectivity in their IoT systems will also find this work to be a valuable reference.
Book Synopsis Road Weather Management Benefit Cost Analysis Compendium by : Michael Lawrence
Download or read book Road Weather Management Benefit Cost Analysis Compendium written by Michael Lawrence and published by . This book was released on 2017 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Road Weather Management (RWM) Benefit Cost Analysis (BCA) Compendium provides information about benefit cost analyses conducted around the country for specific RWM technologies or operational strategies. The actual project evaluations involve the use of custom spreadsheets developed by the agency or its contractors, or the application of available software tools to the BCA. The Compendium also includes hypothetical cases designed to demonstrate how BCA can be used for a specific RWM technology or operational strategy. FHWA has developed a sketch planning BCA tool —the Tool for Operations Benefit/Cost (TOPS-BC)—for application to TSMO projects, including RWM projects. For the hypothetical cases, TOPS-BC is used to assist in the measurement of benefits and costs and in the calculation of the benefit cost ratio. Each case demonstrates how planners conducted, or could conduct, a BCA on one or more RWM technologies or strategies. There are 27 cases studies presented in the RWM Compendium, and each addresses one or more specific BCA concepts or procedures. Note that the hypothetical BCA case studies and scenarios included in this compendium for several road weather management strategies, including Connected Vehicle applications, utilize assumptions on costs and benefits that do not reflect actual costs and benefits associated with those strategies and are presented only for demonstration purposes.
Book Synopsis Towards Connected and Autonomous Vehicle Highways by : Umar Zakir Abdul Hamid
Download or read book Towards Connected and Autonomous Vehicle Highways written by Umar Zakir Abdul Hamid and published by Springer Nature. This book was released on 2021-06-17 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book combines comprehensive multi-angle discussions on fully connected and automated vehicle highway implementation. It covers the current progress of the works towards autonomous vehicle highway development, which encompasses the discussion on the technical, social, and policy as well as security aspects of Connected and Autonomous Vehicles (CAV) topics. This, in return, will be beneficial to a vast amount of readers who are interested in the topics of CAV, Automated Highway and Smart City, among many others. Topics include, but are not limited to, Autonomous Vehicle in the Smart City, Automated Highway, Smart-Cities Transportation, Mobility as a Service, Intelligent Transportation Systems, Data Management of Connected and Autonomous Vehicle, Autonomous Trucks, and Autonomous Freight Transportation. Brings together contributions discussing the latest research in full automated highway implementation; Discusses topics such as autonomous vehicles, intelligent transportation systems, and smart highways; Features contributions from researchers, academics, and professionals from a broad perspective.
Book Synopsis ITS Sensors and Architectures for Traffic Management and Connected Vehicles by : Lawrence A. Klein
Download or read book ITS Sensors and Architectures for Traffic Management and Connected Vehicles written by Lawrence A. Klein and published by CRC Press. This book was released on 2017-08-07 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt: An intelligent transportation system (ITS) offers considerable opportunities for increasing the safety, efficiency, and predictability of traffic flow and reducing vehicle emissions. Sensors (or detectors) enable the effective gathering of arterial and controlled-access highway information in support of automatic incident detection, active transportation and demand management, traffic-adaptive signal control, and ramp and freeway metering and dispatching of emergency response providers. As traffic flow sensors are integrated with big data sources such as connected and cooperative vehicles, and cell phones and other Bluetooth-enabled devices, more accurate and timely traffic flow information can be obtained. The book examines the roles of traffic management centers that serve cities, counties, and other regions, and the collocation issues that ensue when multiple agencies share the same space. It describes sensor applications and data requirements for several ITS strategies; sensor technologies; sensor installation, initialization, and field-testing procedures; and alternate sources of traffic flow data. The book addresses concerns related to the introduction of automated and connected vehicles, and the benefits that systems engineering and national ITS architectures in the US, Europe, Japan, and elsewhere bring to ITS. Sensor and data fusion benefits to traffic management are described, while the Bayesian and Dempster–Shafer approaches to data fusion are discussed in more detail. ITS Sensors and Architectures for Traffic Management and Connected Vehicles suits the needs of personnel in transportation institutes and highway agencies, and students in undergraduate or graduate transportation engineering courses.
Book Synopsis Safety and Feasibility of a Cloud-based Architecture for Multi-vehicle System by : Ricardo L. DeMatos
Download or read book Safety and Feasibility of a Cloud-based Architecture for Multi-vehicle System written by Ricardo L. DeMatos and published by . This book was released on 2017 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cloud computing is widely adopted in industry sectors of finance, energy and transportation. Public cloud service providers are able to consistently deliver solutions that meet demanding needs of security, availability, scalability of mission-critical applications. The low cost of compute and storage, combined with expanding coverage of high speed cellular networks, have enabled a wide expansion of telemetry services and consumer applications in automobiles, but safety applications are not leveraging these benefits. The majority of traffic fatalities happens in high-speed multi-vehicle crashes. Causal analysis of multi-vehicle crashes reveal process model inconsistencies that lead the drivers to make wrong assumptions about vehicle capabilities and lead-vehicle separation distances during adverse road conditions. The Spot Weather Impact Warning (SWIW) is a connected vehicle application concept proposed by the US Department of Transportation (DOT) that alerts drivers to unsafe conditions at specific points on the downstream roadway as a result of weather-related impacts. The application is designed to warn drivers about inclement weather conditions that may impact travel conditions using real-time weather information that is collected from roadway infrastructure and vehicle based probe data. The information is processed to determine the nature of the alert or warning to be delivered and then communicated to connected vehicles. The effectiveness of SWIW connected vehicle application depends on the probe coverage and the speed that probe data can be collected, analyzed, and broadcasted to relevant vehicles and roadway signage. To reach a sufficient coverage without high investment in new infrastructure, SWIW applications can be architected to use existing mobile operators and cloud service providers. A deeper Systems Theoretic Process Analysis of the application reveals that varying levels of vehicle-to-cloud communication performance may lead to process model inconsistencies for drivers, resulting in unsafe control actions from driver that ignore warnings and lead to accidents. To validate the vehicle to cloud communication performance, the SWIW application prototype is built using existing cloud service and vehicle platform. The performance of the application is validated across all tier-one cloud and mobile service providers in 10,000 miles of US roadways. The test results reveal the presence of low latency corridors in the US that may support the initial deployment of low latency solution. String stability model showed that significant reduction in probability of accidents is possible even at low penetration rates of the solution. The solution's operational cost analysis also concludes that a limited deployment on commercial vehicles has the potential of saving high value corridors such as the 402-mile Wyoming I-80 corridor as much as $1.5 million per day of socio-economic losses in accidents with an operational cost of $763 per day. This thesis concludes that connected vehicle programs that are addressing multi-vehicle accidents in low latency corridors should consider commercial fleet deployments that use mobile and public cloud service providers to quickly reach minimal penetration rate and socio-economic benefits.
Book Synopsis Highway Functional Classification by : United States. Federal Highway Administration
Download or read book Highway Functional Classification written by United States. Federal Highway Administration and published by . This book was released on 1974 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Concepts for Managing Freeway Operations During Weather Events by :
Download or read book Concepts for Managing Freeway Operations During Weather Events written by and published by . This book was released on 2007 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: The goal of this research was to help the Texas Department of Transportation (TxDOT) develop a structured, systematic approach for managing traffic during weather events. The focus in this research project was on common weather events - such as fog, high winds, heavy rains, and snow and ice storms - that impact traffic operations day-to-day. First, the authors conducted a survey of selected TxDOT districts to determine what information traffic management center (TMC) operators need to manage traffic operations during weather events. Through a review of the existing literature, the authors assessed systems and technologies that other states have deployed to manage traffic during weather-related events. They reviewed the current state of weather-related detection and monitoring technologies. Using historical traffic detector and weather information, they assessed the magnitude of the impact of different weather events on traffic operations. Using all this information, the authors developed concepts of operations for how TMC operators should respond to different types of weather-related events, including limited visibility conditions, ponding and flash flooding, high winds, severe thunderstorms, tornados, and winter storms. They developed a catalog of advisory, control, and treatment strategies (or ACTS) that operators could use to manage traffic operations during weather events.
Download or read book Ictis 2013 written by Xinping Yan and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Road Weather Information for Travelers by :
Download or read book Road Weather Information for Travelers written by and published by . This book was released on 2011 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Autonomous Vehicle Technology by : James M. Anderson
Download or read book Autonomous Vehicle Technology written by James M. Anderson and published by Rand Corporation. This book was released on 2014-01-10 with total page 215 pages. Available in PDF, EPUB and Kindle. Book excerpt: The automotive industry appears close to substantial change engendered by “self-driving” technologies. This technology offers the possibility of significant benefits to social welfare—saving lives; reducing crashes, congestion, fuel consumption, and pollution; increasing mobility for the disabled; and ultimately improving land use. This report is intended as a guide for state and federal policymakers on the many issues that this technology raises.
