Field Testing For Automatic Identification Of Turning Movements At Signalized Intersections
DOWNLOAD
Download Field Testing For Automatic Identification Of Turning Movements At Signalized Intersections PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Field Testing For Automatic Identification Of Turning Movements At Signalized Intersections book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page
Field Testing For Automatic Identification Of Turning Movements At Signalized Intersections
DOWNLOAD
Author : Jialin Tian
language : en
Publisher:
Release Date : 2004
Field Testing For Automatic Identification Of Turning Movements At Signalized Intersections written by Jialin Tian and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Roads categories.
Obtaining turning movement counts at signalized intersections is a routine task in traffic engineering and can be tedious and time consuming. Previous research in automating turning movement count has focused on estimating the turning movements from approach and departure volumes and developing detection systems for exclusive turning lanes. The accuracy of an alternative method, called the Time and Place System (TAPS), is examined in this research through a field study of five signalized intersections in Columbia, Missouri. TAPS uses both the locations and times of actuations from a small number of detectors to classify movements from shared approach lanes. The five intersections represent a range of geometries and signal timings. At four intersections a standard video camera was placed about 30 feet high, as close to the departure lanes as possible, to provide a reasonable view. Additional cameras showed current signal indications into the departure leg. At the fifth location a single elevated camera captured both vehicle movements and signal indications. The videotape data was used to compare TAPS results to actual flows. The errors in detections were apparently due to the sensitivity of detection system, camera angles, intersection geometries, traffic parameters and other factors. The ability of TAPS to identify turning movements at signalized intersections was supported by the study results. The information from TAPS could be used for advanced signal management, dynamic traffic assignment and traffic demand estimation.
Transportation Research Record
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 1993
Transportation Research Record written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Air travel categories.
Field Test Of Monitoring Of Urban Vehicle Operations Using Non Instrusive Technologies
DOWNLOAD
Author : Jim Kranig
language : en
Publisher:
Release Date : 1997
Field Test Of Monitoring Of Urban Vehicle Operations Using Non Instrusive Technologies written by Jim Kranig and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Detectors categories.
This report documents the activities and results of a test of non- intrusive traffic detection technologies. Seventeen devices representing eight different technologies were evaluated in varying environmental and traffic conditions. The following technologies were tested: passive infrared, active infrared, magnetic, radar, doppler microwave, pulse ultrasonic, passive acoustic, and video. Testing was done at both freeway and intersection locations. Emphasis was placed on urban traffic conditions and locations that typify temporary counting locations. The evaluation also focused on the ease of system setup and use, general system reliability, and system flexibility.
Light Rail Vehicle Collisions With Vehicles At Signalized Intersections
DOWNLOAD
Author : Kelley Klaver Pecheux
language : en
Publisher: Transportation Research Board
Release Date : 2009
Light Rail Vehicle Collisions With Vehicles At Signalized Intersections written by Kelley Klaver Pecheux and has been published by Transportation Research Board this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Electric railroad accidents categories.
This report presents the mitigation methods tested and used by transit agencies to reduce collisions between light rail vehicles (LRVs) and motor vehicles where light rail transit (LRT) runs through or adjacent to highway intersections controlled by conventional traffic signals. A particular focus is placed on collisions occurring between LRVs and vehicles making left-hand turns at these intersections. This report offers success stories and specific actions to achieve positive results, as well as examples of unsuccessful actions. The issues addressed include a range of LRT operations and environments such as median-running, side-running, contra-flow, and mixed-use LRT alignments; urban and suburban setting; and a variety of U.S. geographic regions.
Data Analytics And Machine Learning For Integrated Corridor Management
DOWNLOAD
Author : Yashawi Karnati
language : en
Publisher: CRC Press
Release Date : 2024-10-25
Data Analytics And Machine Learning For Integrated Corridor Management written by Yashawi Karnati and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-10-25 with Computers categories.
In an era defined by rapid urbanization and ever-increasing mobility demands, effective transportation management is paramount. This book takes readers on a journey through the intricate web of contemporary transportation systems, offering unparalleled insights into the strategies, technologies, and methodologies shaping the movement of people and goods in urban landscapes. From the fundamental principles of traffic signal dynamics to the cutting-edge applications of machine learning, each chapter of this comprehensive guide unveils essential aspects of modern transportation management systems. Chapter by chapter, readers are immersed in the complexities of traffic signal coordination, corridor management, data-driven decision-making, and the integration of advanced technologies. Closing with chapters on modeling measures of effectiveness and computational signal timing optimization, the guide equips readers with the knowledge and tools needed to navigate the complexities of modern transportation management systems. With insights into traffic data visualization and operational performance measures, this book empowers traffic engineers and administrators to design 21st-century signal policies that optimize mobility, enhance safety, and shape the future of urban transportation.
Development And Field Testing Of An Automatic Turning Movement Identification System
DOWNLOAD
Author : Ping Yi
language : en
Publisher:
Release Date : 2017
Development And Field Testing Of An Automatic Turning Movement Identification System written by Ping Yi and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with Signalized intersections categories.
Today many intersections are operated based on data input from nonintrusive video detection systems. With those systems the video detectors can be easily deployed/modified for different application requirements. This research project is initiated to improve the convenience and coverage and reduce cost in turning movement data collection, by taking advantage of the existing video detection system at signalized intersections. This research involves hardware design and algorithm testing, where an automatic turning movement identification system (ATMIS) is developed to interface the current signal control system at each intersection. The ATMIS is tested in different scenarios with variations in intersection configuration and weather conditions. The turning movement data obtained from the system are compared with the ground truth by watching the synchronous video. While the average accuracy level in the first phase of tests for most intersection movements reached 90%, additional improvements in the algorithm and hardware design to handle large-sized vehicles, irregular geometrics and pedestrians, have further advanced the data accuracy to be over 95% for the entire intersection. The major problem leading to the errors is due to turning buses at small intersections, where the size of vehicles can cause false detections. We found an effective solution to this problem by adjusting the camera angle or height, but it was not done for every such case partly because it adds to the busy daily work for the city engineers and partly due to the low volume for the turning movements at small intersections, where the error can be contained in the ADT data. It has been demonstrated that the ATMIS algorithm can effectively address variations in geometrics within the scope of this project, with no obvious degrading impact on the accuracy level by normal rain and snow.
Highway Safety Literature
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 1971
Highway Safety Literature written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1971 with Automobiles categories.
Detection Technology For Ivhs Volume I Final Report
DOWNLOAD
Author : Lawrence A. Klein
language : en
Publisher:
Release Date : 1996
Detection Technology For Ivhs Volume I Final Report written by Lawrence A. Klein and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with categories.
Detection Technology For Ivhs
DOWNLOAD
Author : Lawrence A. Klein
language : en
Publisher:
Release Date : 1996
Detection Technology For Ivhs written by Lawrence A. Klein and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Detectors categories.
Center For Transportation Research Bureau Of Engineering Research The University Of Texas At Austin
DOWNLOAD
Author : University of Texas at Austin. Center for Transportation Research
language : en
Publisher:
Release Date : 1986
Center For Transportation Research Bureau Of Engineering Research The University Of Texas At Austin written by University of Texas at Austin. Center for Transportation Research and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with categories.