Download or read book Using Real time Data to Improve Reliability on High frequency Transit Services written by David W. Maltzan and published by . This book was released on 2015 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, automatically-collected data from many transit agencies have been made available to the public in real time. This has dramatically improved the experience of riding transit, by allowing passengers to use detailed information on the current state of service to make more informed travel decisions. The "open data" movement has allowed independent mobile-phone app developers to create a variety of useful tools to improve the passenger experience. However, agencies' use of real-time data for operational purposes has lagged behind customer-facing app development. This research examines the use of real-time data for the application of operational control strategies on transit services. Two high-frequency bus routes of the Massachusetts Bay Transportation Authority are used as a case study. It begins with the development of an application to download, interpret, and present data on bus service and recommended control actions in a graphical user interface. This application is then used to conduct an experiment with a terminal-based holding strategy on MBTA Route 1. The results of this experiment drive further investigation into the causes of deviations from scheduled or assigned departure times at terminals. To supplement the experimental data, a simulation model of MBTA Routes 1 and 28 is developed. This simulation is used to test additional control strategies, as well as the effect of reducing unexplained operator deviations from assigned departure times. The research finds that real-time data can be used to create significant operational improvements. In particular, holding strategies at terminals, along with reducing unexplained operator deviations from assigned terminal departure times, have a strong effect. Several specific recommendations are made for a number of strategies that the MBTA can use to improve the precision of terminal departure times on bus services. This research also finds that holding at midpoints and short-turning can provide some additional benefit, but the costs and benefits to passengers of these strategies are more complicated and should be investigated with further research and implemented using optimization schemes rather than the heuristic rules used here.
Download or read book Happy City Transforming Our Lives Through Urban Design written by Charles Montgomery and published by Farrar, Straus and Giroux. This book was released on 2013-11-12 with total page 369 pages. Available in PDF, EPUB and Kindle. Book excerpt: A globe-trotting, eye-opening exploration of how cities can—and do—make us happier people Charles Montgomery's Happy City will revolutionize the way we think about urban life. After decades of unchecked sprawl, more people than ever are moving back to the city. Dense urban living has been prescribed as a panacea for the environmental and resource crises of our time. But is it better or worse for our happiness? Are subways, sidewalks, and tower dwelling an improvement on the car-dependence of sprawl? The award-winning journalist Charles Montgomery finds answers to such questions at the intersection between urban design and the emerging science of happiness, and during an exhilarating journey through some of the world's most dynamic cities. He meets the visionary mayor who introduced a "sexy" lipstick-red bus to ease status anxiety in Bogotá; the architect who brought the lessons of medieval Tuscan hill towns to modern-day New York City; the activist who turned Paris's urban freeways into beaches; and an army of American suburbanites who have transformed their lives by hacking the design of their streets and neighborhoods. Full of rich historical detail and new insights from psychologists and Montgomery's own urban experiments, Happy City is an essential tool for understanding and improving our own communities. The message is as surprising as it is hopeful: by retrofitting our cities for happiness, we can tackle the urgent challenges of our age. The happy city, the green city, and the low-carbon city are the same place, and we can all help build it.
Download or read book A Framework for Measuring Passenger experienced Transit Reliability Using Automated Data written by Daniel Alden Wood and published by . This book was released on 2015 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt: A public transport operator's ability to understand and improve service reliability experienced by passengers depends upon their ability to measure it. Traditionally, largely due to data collection limitations, passengers' experience of reliability has not been measured directly. As a result, operators often fail to effectively measure, and thus manage, key issue affecting passengers' perceived reliability. However, with the relatively recent availability of automatic data collection (ADC) systems, it has become technically feasible to measure passengers' reliability experience at a detailed level. If used in practice, passenger-experienced reliability measurement has the potential to improve public transport systems' responsiveness to passengers needs across many functional areas. This thesis develops a framework for the understanding and practical use of passenger-experienced reliability measurement on high-frequency transit systems. A model of passenger-experienced reliability based on total travel time variability is developed, and the key differences from "operational" reliability identified. This model is applied to identify public transport management functions which should be targeted as a result of passenger-experienced reliability measurement. The model and potential applications are then synthesized to develop a set of design criteria for passenger-experienced reliability metrics. Two new measures of passenger-experienced reliability are developed, both aiming to quantify the "buffer time" passengers must add to compensate for travel time variability. The first measure, derived from passengers' actual travel times from automatic fare collection (AFC) data, is essentially the median travel time variability experienced by frequent travelers over each origin-destination (OD) pair of interest. The second measure, derived from vehicle location data, OD matrices, and train load estimates, is based on a simulation of passengers' waiting, boarding, transfer, and in-vehicle travel process. This second metric is aimed at "non-gated" systems without exit AFC data, for which passengers' travel times cannot be measured directly. These two metrics are tested and evaluated using data from the Hong Kong MTR system. These metrics' response to incidents, scheduled headways, and passenger demand are tested at the OD pair and line levels. The results are used to evaluate these metrics according to the previously-developed design criteria for passenger-experienced reliability metrics. The first metric is found to be suitable for implementation (where adequate data is available), while the second is found to inadequately measure demand-related delays. An implementation guide for the AFC-based metric is developed. This guide is structured around four main implementation decisions: (1) coordination with an operator's existing metrics, (2) defining the service scope, (3) determining an appropriate frequency of calculation, and (4) defining appropriate time of day intervals and date periods. This guide is then demonstrated using a case study application from MTR: an investigation of the 2014 Hong Kong political demonstrations' impact on MTR reliability.
Download or read book Transportation Planning Handbook written by ITE (Institute of Transportation Engineers) and published by John Wiley & Sons. This book was released on 2016-08-01 with total page 1204 pages. Available in PDF, EPUB and Kindle. Book excerpt: A multi-disciplinary approach to transportation planning fundamentals The Transportation Planning Handbook is a comprehensive, practice-oriented reference that presents the fundamental concepts of transportation planning alongside proven techniques. This new fourth edition is more strongly focused on serving the needs of all users, the role of safety in the planning process, and transportation planning in the context of societal concerns, including the development of more sustainable transportation solutions. The content structure has been redesigned with a new format that promotes a more functionally driven multimodal approach to planning, design, and implementation, including guidance toward the latest tools and technology. The material has been updated to reflect the latest changes to major transportation resources such as the HCM, MUTCD, HSM, and more, including the most current ADA accessibility regulations. Transportation planning has historically followed the rational planning model of defining objectives, identifying problems, generating and evaluating alternatives, and developing plans. Planners are increasingly expected to adopt a more multi-disciplinary approach, especially in light of the rising importance of sustainability and environmental concerns. This book presents the fundamentals of transportation planning in a multidisciplinary context, giving readers a practical reference for day-to-day answers. Serve the needs of all users Incorporate safety into the planning process Examine the latest transportation planning software packages Get up to date on the latest standards, recommendations, and codes Developed by The Institute of Transportation Engineers, this book is the culmination of over seventy years of transportation planning solutions, fully updated to reflect the needs of a changing society. For a comprehensive guide with practical answers, The Transportation Planning Handbook is an essential reference.
Download or read book Public Transit Planning and Operation written by Avishai Ceder and published by CRC Press. This book was released on 2016-03-09 with total page 730 pages. Available in PDF, EPUB and Kindle. Book excerpt: Addresses the Challenges Facing Public Transport Policy Makers and OperatorsPublic Transit Planning and Operation: Modeling, Practice and Behavior, Second Edition offers new solutions for delivering both better services and greater efficiency, solutions which have been developed and tested by the author in over thirty years of research work with ma
Download or read book Real Time Dispatching of Bus to Improve Transfers written by Qing Li and published by . This book was released on 2001 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this research is to provide insight into the effectiveness of certain real time dispatching control actions on service reliability for transfer from a high frequency bus route to a low frequency bus route. A model of the operation of 2 connected bus routes was built based on data from real bus routes operated by OC Transpo in Ottawa, and a simulation program was designed and developed. This simulation program was used to conduct experiments to compare different control actions to improve transfer effectiveness, to test the impacts of the bus threshold on passenger waiting time and to evaluate the AVL detector location. We defined an objective function--cost/benefit function, to measure the system performance of the above cases. This objective function considered 2 important factors: number of passengers relevant to transfer and waiting time relevant to control. The research and simulation experiments suggested that real time monitoring technologies can improve the transit bus transferring significantly without preplanned timed transfer. The detector location is determined by feeder line headway primarily and the connecting bus holding threshold secondarily. Without considering the hard requirements from outside system, the bus holding threshold should not be greater than the feeder line headway.
Download or read book Improving Service Restoration Using Automatic Vehicle Location written by Zhong-Ren Peng and published by . This book was released on 2008 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Making Data Matter written by Dominick Anthony Tribone and published by . This book was released on 2013 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: As public transit agencies install new technology systems they are gaining increasing amounts of data. This data has the potential to change how they operate by generating better information for decision-making. Deriving value from this data and applying it to improve service requires changing the institutional processes that developed when agencies had little reliable information about their systems and customers. With automated systems producing large quantities of high quality data, it becomes the impetus for, rather than simply the input to, measurement. Capturing more value from automated data thus involves rethinking what agencies can know about service. This research uses the Massachusetts Bay Transportation Authority (MBTA) as a case study. It first assesses how the MBTA currently uses real-time and historical data. Based on this assessment, it redesigns and advances the agency's daily performance reports for rapid transit through a collaborative and iterative process with the Operations Control Center. These reports are then used to identify poor performance, implement pilot projects to address its causes, and evaluate the effects of these pilots. Through this case study, this research finds that service controllers' trust and interpretation of performance information determines its impact on operations. It concludes that new data will be most effective in producing service improvements if measurements accurately reflect human experience and are developed in conjunction with their eventual users. It also finds that developing pilot projects during this collaborative process enables new performance information to result in service improvements. Based on these findings, this work produces a set of recommendations for generating useful performance information from transit data, as well as a specific set of recommendations for expanding the use of data at the MBTA.
Download or read book Leveraging ITS Data for Transit Market Research written by James G. Strathman and published by Transportation Research Board. This book was released on 2008 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: TRB¿s Transit Cooperative Research Program (TCRP) Report 126: Leveraging ITS Data for Transit Market Research: A Practitioner¿s Guidebook examines intelligent transportation systems (ITS) and Transit ITS technologies currently in use, explores their potential to provide market research data, and presents methods for collecting and analyzing these data. The guidebook also highlights three case studies that illustrate how ITS data have been used to improve market research practices.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Department of Transportation and Related Agencies Appropriations for 1994 written by United States. Congress. House. Committee on Appropriations. Subcommittee on Department of Transportation and Related Agencies Appropriations and published by . This book was released on 1993 with total page 1244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Creativity innovation and entrepreneurship in healthcare and service systems written by Fu-Sheng Tsai and published by Frontiers Media SA. This book was released on 2023-03-30 with total page 271 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Urban Transportation Abstracts written by and published by . This book was released on 1982 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Transit written by National Research Council (U.S.). Transportation Research Board and published by . This book was released on 2005 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Transportation Research Record contains 13 papers on public transit. Specific topics discussed include intermodal transfer facilities, rail transit and commuter rail, light rail, and personal rapid transit.
Download or read book Strategies for Improved Traveler Information written by and published by Transportation Research Board. This book was released on 2003 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides a useful summary of the state of the practice in the area of improved transit traveler information. The result identifies transit traveler information needs, assesses the state of the art in providing transit traveler information, provides examples of customer information systems from both inside the transit industry and related industries, discusses transit traveler information as part of larger community information systems, and offers new directions for the transit industry in providing traveler information.
Download or read book Signal written by and published by . This book was released on 1988 with total page 1356 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 6G Mobile Wireless Networks written by Yulei Wu and published by Springer Nature. This book was released on 2021-08-24 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the world’s first book on 6G Mobile Wireless Networks that aims to provide a comprehensive understanding of key drivers, use cases, research requirements, challenges and open issues that are expected to drive 6G research. In this book, we have invited world-renowned experts from industry and academia to share their thoughts on different aspects of 6G research. Specifically, this book covers the following topics: 6G Use Cases, Requirements, Metrics and Enabling Technologies, PHY Technologies for 6G Wireless, Reconfigurable Intelligent Surface for 6G Wireless Networks, Millimeter-wave and Terahertz Spectrum for 6G Wireless, Challenges in Transport Layer for Tbit/s Communications, High-capacity Backhaul Connectivity for 6G Wireless, Cloud Native Approach for 6G Wireless Networks, Machine Type Communications in 6G, Edge Intelligence and Pervasive AI in 6G, Blockchain: Foundations and Role in 6G, Role of Open-source Platforms in 6G, and Quantum Computing and 6G Wireless. The overarching aim of this book is to explore the evolution from current 5G networks towards the future 6G networks from a service, air interface and network perspective, thereby laying out a vision for 6G networks. This book not only discusses the potential 6G use cases, requirements, metrics and enabling technologies, but also discusses the emerging technologies and topics such as 6G PHY technologies, reconfigurable intelligent surface, millimeter-wave and THz communications, visible light communications, transport layer for Tbit/s communications, high-capacity backhaul connectivity, cloud native approach, machine-type communications, edge intelligence and pervasive AI, network security and blockchain, and the role of open-source platform in 6G. This book provides a systematic treatment of the state-of-the-art in these emerging topics and their role in supporting a wide variety of verticals in the future. As such, it provides a comprehensive overview of the expected applications of 6G with a detailed discussion of their requirements and possible enabling technologies. This book also outlines the possible challenges and research directions to facilitate the future research and development of 6G mobile wireless networks.
