Automated Intersection Volume Counts Using Existing Signal Control Devices
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Manual On Uniform Traffic Control Devices For Streets And Highways D6 1 1961 June 1961
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Author : United States. Bureau of Public Roads
language : en
Publisher:
Release Date : 1961
Manual On Uniform Traffic Control Devices For Streets And Highways D6 1 1961 June 1961 written by United States. Bureau of Public Roads and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1961 with categories.
Design Of Urban Streets
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Author : James H. Kell
language : en
Publisher:
Release Date : 1980
Design Of Urban Streets written by James H. Kell and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1980 with Streets categories.
The report on design of urban streets was prepared as the participant's notebook for a four and a half day training course of the same title which has been conducted for a number of Federal, state, and local agencies. The report provides practical, state-of-the-art information to aid in design and operation of streets and highways, with emphasis on functional, operational, and safety aspects of design which apply to minor design revisions as well as to major reconstruction and new construction.
Design Of Urban Streets
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Author : William R. Reilly
language : en
Publisher:
Release Date : 1980
Design Of Urban Streets written by William R. Reilly and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1980 with Streets categories.
Traffic Engineering And Management
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Author : Mr. Rohit Manglik
language : en
Publisher: EduGorilla Publication
Release Date : 2024-07-26
Traffic Engineering And Management written by Mr. Rohit Manglik and has been published by EduGorilla Publication this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-07-26 with Technology & Engineering categories.
EduGorilla Publication is a trusted name in the education sector, committed to empowering learners with high-quality study materials and resources. Specializing in competitive exams and academic support, EduGorilla provides comprehensive and well-structured content tailored to meet the needs of students across various streams and levels.
Systems Engineering Processes For Developing Traffic Signal Systems
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Author : Robert L. Gordon
language : en
Publisher: Transportation Research Board
Release Date : 2003
Systems Engineering Processes For Developing Traffic Signal Systems written by Robert L. Gordon 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 2003 with Technology & Engineering categories.
TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 307: Systems Engineering Processes for Developing Traffic Signal Systems discusses the systems engineering techniques available to traffic signal systems and identifies the key processes in a number of traffic signal systems engineering areas.
National Railroad Highway Crossing Inventory
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Author :
language : en
Publisher:
Release Date : 1973
National Railroad Highway Crossing Inventory written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1973 with Highway-railroad grade crossing categories.
Automated Intersection Volume Counts Using Existing Signal Control Devices
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Author : Ali Gholami
language : en
Publisher:
Release Date : 2015
Automated Intersection Volume Counts Using Existing Signal Control Devices written by Ali Gholami and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with Electronic books categories.
The purpose of this dissertation was to identify and investigate the possibility of obtaining turning volumes from inductive loops and investigate the accuracy of them. A large majority of signalized intersections operate under inductive loops. Experiences in cities such as Seattle, San Antonio, and Toronto show successful usage of inductive loop detectors to obtain traffic volume at intersections. Loop detectors are the most common method for obtaining data at intersections to operate and control traffic signals. A macroscopic study was performed on two intersections in Reno and Sparks. Both Reno and Sparks use sequential short loops. The detector accuracy was interpreted in terms of count errors. The preferred metric for count error is the Mean Absolute Percent Error (MAPE, %). Results showed the counts were not reliable and had a very high error. At the Kietzke/Moana intersection in Reno, NV, the MAPE was 15 percent northbound, 31 percent southbound, 20 percent eastbound, and 36 percent westbound. At Sparks/Prater in Sparks, NV, the MAPE was worse with all detector groups ranging from 48 to 74 percent. In Reno, advance detector counts could be modified because they showed a strong relationship with base (observed) counts; however, in Sparks, there was not a clear relationship between the two sets of counts. In Chapter 4, by using Genetic Programming (GP) and Adaptive Neuro-Fuzzy Inference System (ANFIS), detector counts were modified and again MAPE was calculated. At Kietzke/Moana, all approaches after data modification had MAPE less than 14 percent. However, at Sparks/Prater, because of the loops’ wiring, there was more irregularity in count detections and as a result, models were not able to reduce detector count errors significantly. Even when detector counts can be modified, detectors are unable to produce turning movement counts in shared lanes. Current practice involves gathering such information through manual counts, which is very costly. Chapter 5 proposes three methods to estimate turning movement proportions in shared lanes. These methods were tested using linear regression and Genetic Programming (GP). It was found that the hourly average error range at intersections was between 4 to 27 percent using linear regression and 1 to 15 percent using GP. The proposed method for modifying detector counts did not guarantee reliable counts in all situations. In Chapter 6, a method is proposed to obtain turning movement counts only from signal information without using detector counts. To produce the required data, a simulation was performed in VISSIM with different input volumes. To change turning volumes, a code was developed in COM interface. With this code, the inputs did not have to be changed manually. In addition, the COM code stored the outputs. Data were then exported to a single Excel file. Afterwards, regression and the Adaptive Neural Fuzzy Inference System (ANFIS) were used to build models to obtain turning volumes. The accuracy of the models was defined in terms of MAPE. Results of the two case studies showed that during peak hours, there was a high correlation between actuated green time and volumes. This method does not require extensive data collection and is relatively easy to employ. The results also showed that ANFIS produced more accurate results compared to regression. Chapter 7 proposes mid-intersection detector (MID) concept configuration to obtain more accurate counts. MIDs are departure doctors which have moved back to middle of intersection. Under this configuration, in addition to stop bar detectors, some mid-intersection detectors also are used to obtain more reliable counts. Due to intersection operation, stop bar detectors were still required, but compared to traditional departure detector configurations, MIDs were expected to produce more reliable and accurate data while requiring same number of detectors. Chapter 8 offers some recommendations to change the loop detector systems for the sake of improving turning movement counts. For obtaining more accurate counts, we recommend: 1) the cost-effective and non-intrusive replacements of inductive loops (Passive Infrared, Active Infrared, Radar and Passive Millimeter, Passive Acoustic, Ultrasonic-Pulse and Doppler). Several “non-intrusive” detection systems are becoming more prominent, being viewed as cost-effective replacements of inductive loops; 2) Changing the configuration and wiring of loops. Performance was significantly enhanced when the loops were connected such that the field generated by the individual loops was additive between the loops rather than subtractive. Counting results were likely to be fair to poor when the loops were separated by 10 or more feet or had a different number of turns or were connected in parallel. To obtain excellent to good counts from loops, each loop should be wired to an individual loop detector channel. If two or more are spliced together into one loop detector channel, the count accuracy would be fair to poor. (Abstract shortened by UMI.).
Highway Safety Literature Annual Cumulation
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Author :
language : en
Publisher:
Release Date : 1969
Highway Safety Literature Annual Cumulation written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1969 with Traffic accidents categories.
One of a 5-volume set, each covering a broad subject, which cumulates annually all citations that appeared during the year in: Highway safety literature. In present volume, annotated entries arranged under emergency services, injuries, investigations and records, and locations. No index.
International Encyclopedia Of Transportation
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Author :
language : en
Publisher: Elsevier
Release Date : 2021-05-13
International Encyclopedia Of Transportation written by and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-05-13 with Law categories.
In an increasingly globalised world, despite reductions in costs and time, transportation has become even more important as a facilitator of economic and human interaction; this is reflected in technical advances in transportation systems, increasing interest in how transportation interacts with society and the need to provide novel approaches to understanding its impacts. This has become particularly acute with the impact that Covid-19 has had on transportation across the world, at local, national and international levels. Encyclopedia of Transportation, Seven Volume Set - containing almost 600 articles - brings a cross-cutting and integrated approach to all aspects of transportation from a variety of interdisciplinary fields including engineering, operations research, economics, geography and sociology in order to understand the changes taking place. Emphasising the interaction between these different aspects of research, it offers new solutions to modern-day problems related to transportation. Each of its nine sections is based around familiar themes, but brings together the views of experts from different disciplinary perspectives. Each section is edited by a subject expert who has commissioned articles from a range of authors representing different disciplines, different parts of the world and different social perspectives. The nine sections are structured around the following themes: Transport Modes; Freight Transport and Logistics; Transport Safety and Security; Transport Economics; Traffic Management; Transport Modelling and Data Management; Transport Policy and Planning; Transport Psychology; Sustainability and Health Issues in Transportation. Some articles provide a technical introduction to a topic whilst others provide a bridge between topics or a more future-oriented view of new research areas or challenges. The end result is a reference work that offers researchers and practitioners new approaches, new ways of thinking and novel solutions to problems. All-encompassing and expertly authored, this outstanding reference work will be essential reading for all students and researchers interested in transportation and its global impact in what is a very uncertain world. Provides a forward looking and integrated approach to transportation Updated with future technological impacts, such as self-driving vehicles, cyber-physical systems and big data analytics Includes comprehensive coverage Presents a worldwide approach, including sets of comparative studies and applications
Routledge Handbook Of Transportation
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Author : Dusan Teodorovic
language : en
Publisher: Routledge
Release Date : 2015-08-20
Routledge Handbook Of Transportation written by Dusan Teodorovic and has been published by Routledge this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-08-20 with Architecture categories.
The Routledge Handbook of Transportation offers a current and comprehensive survey of transportation planning and engineering research. It provides a step-by-step introduction to research related to traffic engineering and control, transportation planning, and performance measurement and evaluation of transportation alternatives. The Handbook of Transportation demonstrates models and methods for predicting travel and freight demand, planning future transportation networks, and developing traffic control systems. Readers will learn how to use various engineering concepts and approaches to make future transportation safer, more efficient, and more sustainable. Edited by Dušan Teodorović and featuring 29 chapters from more than 50 leading global experts, with more than 200 illustrations, the Routledge Handbook of Transportation is designed as an invaluable resource for professionals and students in transportation planning and engineering.