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Author: Edoardo Espinoza Publisher: ISBN: Category : Languages : en Pages : 180
Book Description
Connected and Autonomous vehicles (CAVs) have risen in popularity in recent years and are expected to bring with them many changes including driver safety, expansion of ridership from people currently unable to drive, and more travel miles from long trip commuters. From an engineering standpoint, CAVs are expected to bring with them an increase in highway capacities because of their ability to react faster than human drivers and produce shorter time headways between successive vehicles. CAVs are not anticipated to dominate the traffic stream until another 20 to 40 years and are expected to be introduced gradually into the transportation system. Shorter time headways suggest that freeways may be positively affected by the new technology and new procedures will need to be established in order to analyze highway capacities in the future. The 6th Edition Highway Capacity Manual is one of the main sources that is used by the engineering community to estimate capacities of freeway segments. This study documents a new simulation tool to discover the capacity implications for a basic freeway segment of different CAV market penetrations and reduced time headways
Author: Edoardo Espinoza Publisher: ISBN: Category : Languages : en Pages : 180
Book Description
Connected and Autonomous vehicles (CAVs) have risen in popularity in recent years and are expected to bring with them many changes including driver safety, expansion of ridership from people currently unable to drive, and more travel miles from long trip commuters. From an engineering standpoint, CAVs are expected to bring with them an increase in highway capacities because of their ability to react faster than human drivers and produce shorter time headways between successive vehicles. CAVs are not anticipated to dominate the traffic stream until another 20 to 40 years and are expected to be introduced gradually into the transportation system. Shorter time headways suggest that freeways may be positively affected by the new technology and new procedures will need to be established in order to analyze highway capacities in the future. The 6th Edition Highway Capacity Manual is one of the main sources that is used by the engineering community to estimate capacities of freeway segments. This study documents a new simulation tool to discover the capacity implications for a basic freeway segment of different CAV market penetrations and reduced time headways
Author: Sia Macmillan Lyimo Publisher: ISBN: Category : Automated vehicles Languages : en Pages : 149
Book Description
Autonomous vehicles have recently gained the attention of researchers due to their expected potential benefits on highway traffic streams, such as improving roadway capacity, among others. It is imperative to investigate how these expected benefits can be leveraged in the transportation sector. Understanding the safety and operational benefits helps the concerned transportation agencies and other key stakeholders to make necessary infrastructural and policy adjustments to accommodate such future traffic operation changes. The main goal of this dissertation is to study the impact of connected and automated vehicles on freeway capacity. The simulated environment was created to emulate autonomous vehicle behaviors, connectivity between vehicles, and various scenarios that answer research questions to achieve the research goal. The first case study uses simulated traffic flows at different percentages of human-driven heavy vehicles (HDHVs) and automated passenger cars (APCs) to investigate the impacts of both HDHVs and APCs on freeway capacity. In addition, the future applicability of the current design guidelines presented in the Highway Capacity Manual (HCM) is investigated. This case study provides information on how passenger car automation affects freeway capacity. Also, a modified formula is proposed in place of the current HCM formula for determining vehicle adjustment factors due to HDHVs and APCs in the traffic stream capacity. Also, a modified formula is proposed in place of the current HCM formula for determining vehicle adjustment factors due to HDHVs and APCs in the traffic stream. Another case study investigates the impact of connected and automated heavy vehicles (CAHV) on freeway basic section capacity. Various simulations were conducted considering the percent of human-driven heavy vehicles (HDHV) in the mix, platoon size, and percent of CAHV on HDHV and lane restriction. The simulation results provide insights into how these factors impact the freeway's capacity. In particular, freeway capacity significantly increased with CAHV and lane restriction scenarios. The increase in capacity was apparent at a higher percentage of trucks in the traffic mix. Regarding CAHV platoon size, the capacity does not appear to significantly change with platoon size for a given percent of trucks in the traffic mix. Furthermore, a system-wide case study is conducted in Michigan, covering all the interstates. The model developed using simulated results is used to assess how the introduction of CAHVs alters the current capacity and their respective level of services without incurring any infrastructural changes. The observed positive benefits at the system-wide level are discussed, and recommendations are provided to transportation agencies. Lastly, the study investigates how the adoption of connectivity and automation in the vehicle industry will strengthen transportation equity, especially for people with disabilities and non-motorized user groups. The survey on non-users was used to identify factors associated with differences in the perception of the feasibility of the autonomous shuttles for solving the first and last-mile travel. The results provide insight to transportation planners on the possibilities of solving the first and last mile problem among people with disabilities. At the same time, they provide information about the concerns of the non-motorized users should the technology be adopted and operated on the same infrastructure as those used by the non-motorized users.
Author: Markus Maurer Publisher: Springer ISBN: 3662488477 Category : Technology & Engineering Languages : en Pages : 698
Book Description
This book takes a look at fully automated, autonomous vehicles and discusses many open questions: How can autonomous vehicles be integrated into the current transportation system with diverse users and human drivers? Where do automated vehicles fall under current legal frameworks? What risks are associated with automation and how will society respond to these risks? How will the marketplace react to automated vehicles and what changes may be necessary for companies? Experts from Germany and the United States define key societal, engineering, and mobility issues related to the automation of vehicles. They discuss the decisions programmers of automated vehicles must make to enable vehicles to perceive their environment, interact with other road users, and choose actions that may have ethical consequences. The authors further identify expectations and concerns that will form the basis for individual and societal acceptance of autonomous driving. While the safety benefits of such vehicles are tremendous, the authors demonstrate that these benefits will only be achieved if vehicles have an appropriate safety concept at the heart of their design. Realizing the potential of automated vehicles to reorganize traffic and transform mobility of people and goods requires similar care in the design of vehicles and networks. By covering all of these topics, the book aims to provide a current, comprehensive, and scientifically sound treatment of the emerging field of “autonomous driving".
Author: Umar Zakir Abdul Hamid Publisher: Springer Nature ISBN: 3030660427 Category : Technology & Engineering Languages : en Pages : 345
Book Description
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.
Author: James M. Anderson Publisher: Rand Corporation ISBN: 0833084372 Category : Transportation Languages : en Pages : 215
Book Description
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.
Author: Petros Ioannou Publisher: Springer Science & Business Media ISBN: 1475745737 Category : Technology & Engineering Languages : en Pages : 366
Book Description
Experts address some of the main issues and uncertainties associated with the design and deployment of Automated Highway Systems (AHS). They discuss new AHS concepts, technology, and benefits, as well as institutional, environmental, and social issues - concerns that will affect dramatically the operation of the current highway system from both the vehicle and infrastructure points of view.
Author: Pierluigi Coppola Publisher: Elsevier ISBN: 0128176962 Category : Transportation Languages : en Pages : 178
Book Description
Autonomous Vehicles and Future Mobility presents novel methods for examining the long term effects on individuals, society, and on the environment on a wide range of forthcoming transport scenarios such self-driving vehicles, workplace mobility plans, demand responsive transport analysis, mobility as a service, multi-source transport data provision, and door-to-door mobility. With the development and realization of new mobility options comes change in long term travel behavior and transport policy. Autonomous Vehicles and Future Mobility addresses these impacts, considering such key areas as attitude of users towards new services, the consequences of introducing of new mobility forms, the impacts of changing work related trips, the access to information about mobility options and the changing strategies of relevant stakeholders in transportation. By examining and contextualizing innovative transport solutions in this rapidly evolving field, Autonomous Vehicles and Future Mobility provides insights into current implementation of these potentially sustainable solutions, serving as general guidelines and best practices for researchers, professionals, and policy makers. Covers hot topics including travel behavior change, autonomous vehicle impacts, intelligent solutions, mobility planning, mobility as a service, sustainable solutions, and more Examines up to date models and applications using novel technologies Contributions from leading scholars around the globe Case studies with latest research results
Author: Clifford Winston Publisher: Brookings Institution Press ISBN: 0815738587 Category : Political Science Languages : en Pages : 177
Book Description
Better public policies can make the road smoother for self-driving vehicles and the society that soon will depend on them. Whether you find the idea of autonomous vehicles to be exciting or frightening, the truth is that they will soon become a significant everyday presence on streets and highways—not just a novel experiment attracting attention or giggles and sparking fears of runaway self-driving cars. The emergence of these vehicles represents a watershed moment in the history of transportation. If properly encouraged, this innovation promises not only to vastly improve road travel and generate huge benefits to travelers and businesses, but to also benefit the entire economy by reducing congestion and virtually eliminating vehicle accidents. The impacts of autonomous vehicles on land use, employment, and public finance are likely to be mixed. But widely assumed negative effects are generally overstated because they ignore plausible adjustments by the public and policymakers that could ameliorate them. This book by two transportation experts argues that policy analysts can play an important and constructive role in identifying and analyzing important policy issues and necessary steps to ease the advent of autonomous vehicles. Among the actions that governments must take are creating a framework for vehicle testing, making appropriate investments in the technology of highway networks to facilitate communication involving autonomous vehicles, and reforming pricing and investment policies to enable operation of autonomous vehicles to be safe and efficient. The authors argue that policymakers at all levels of government must address these and other issues sooner rather than later. Prompt and effective actions outlined in this book are necessary to ensure that autonomous vehicles will be safe and efficient when the public begins to adopt them as replacements for current vehicles.
Author: Felipe Jiménez Publisher: Butterworth-Heinemann ISBN: 012813108X Category : Technology & Engineering Languages : en Pages : 505
Book Description
Intelligent Road Vehicles examines specific aspects of intelligent vehicles such as enabling technologies, human factors and an analysis of social and economic impacts. The book is an invaluable resource for those pursuing deeper knowledge in the intelligent vehicles field, providing readers with an idea of current and future technologies, current projects and developments and the future of intelligent vehicles. Intelligent road vehicles are becoming a challenging area of research worldwide. Apart from the final applications and systems in vehicles, there are many enabling technologies that should be introduced. Communications and automation are two key areas for future automobiles. This book benefits from collaboration on the Thematic Network on Intelligent Vehicles led by Felipe Jimenez. Provides a general overview of different aspects related to intelligent road vehicles (sensors, applications, communications, automation, human factors, etc.) Addresses the different components and building blocks of intelligent vehicles in a single, comprehensive reference Explains how sensors are interpreted, including how different sensor readings are fused Addresses issues involved with avoiding collisions and other factors such as pot holes, unclear road lines or markings, and unexpected weather conditions
Author: Edoardo Espinoza
Author: Edoardo Espinoza
Author: Sia Macmillan Lyimo
Author: Markus Maurer
Author: Umar Zakir Abdul Hamid
Author: James M. Anderson
Author: Petros Ioannou
Author: Pierluigi Coppola
Author: 
Author: Clifford Winston
Author: Felipe Jiménez