Signalized Intersections
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Operation Analysis And Design Of Signalized Intersections
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Author : Michael Kyte
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2014-07-04
Operation Analysis And Design Of Signalized Intersections written by Michael Kyte and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-07-04 with Roads categories.
Before they begin their university studies, most students have experience with traffic signals, as drivers, pedestrians and bicycle riders. One of the tasks of the introductory course in transportation engineering is to portray the traffic signal control system in a way that connects with these experiences. The challenge is to reveal the system in a simple enough way to allow the student "in the door," but to include enough complexity so that this process of learning about signalized intersections is both challenging and rewarding. We have approached the process of developing this module with the following guidelines: * Focusing on the automobile user and pretimed signal operation allows the student to learn about fundamental principles of a signalized intersection, while laying the foundation for future courses that address other users (pedestrians, bicycle riders, public transit operators) and more advanced traffic control schemes such as actuated control, coordinated signal systems, and adaptive control. * Queuing models are presented as a way of learning about the fundamentals of traffic flow at a signalized intersection. A graphical approach is taken so that students can see how flow profile diagrams, cumulative vehicle diagrams, and queue accumulation polygons are powerful representations of the operation and performance of a signalized intersection. * Only those equations that students can apply with some degree of understanding are presented. For example, the uniform delay equation is developed and used as a means of representing intersection performance. However, the second and third terms of the Highway Capacity Manual delay equation are not included, as students will have no basis for understanding the foundation of these terms. * Learning objectives are clearly stated at the beginning of each section so that the student knows what is to come. At the end of each section, the learning objectives are reiterated along with a set of concepts that students should understand once they complete the work in the section. * Over 70 figures are included in the module. We believe that graphically illustrating basic concepts is an important way for students to learn, particularly for queuing model concepts and the development of the change and clearance timing intervals. * Over 50 computational problems and two field exercises are provided to give students the chance to test their understanding of the material. The sequence in which concepts are presented in this module, and the way in which more complex ideas build on the more fundamental ones, was based on our study of student learning in the introductory course. The development of each concept leads to an element in the culminating activity: the design and evaluation of a signal timing plan in section 9. For example, to complete step 1 of the design process, the student must learn about the sequencing and control of movements, presented in section 3 of this module. But to determine split times, step 6 of the design process, four concepts must be learned including flow (section 2), sequencing and control of movements (section 3), sufficiency of capacity (section 6), and cycle length and splits (section 8). Depending on the pace desired by the instructor, this material can be covered in 9 to 12 class periods.
Signalized Intersections
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Author : Daiheng Ni
language : en
Publisher: Springer Nature
Release Date : 2020-02-27
Signalized Intersections written by Daiheng Ni and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-02-27 with Technology & Engineering categories.
This textbook introduces the basics principles of intersection signalization including need studies, signal phasing, sequencing, timing, as well as more advanced topics such as detectors, controllers, actuated control schemes, and signal coordination. The book covers a variety of topics critical to the set up and operation of intersections controlled by traffic signals. Professor Ni imparts a basic understanding of how intersections work, what justifies intersection signalization, how to properly design phasing and timing plans for intersections, what is needed to run traffic-responsive signals, the workings of traffic controller cabinets, and how to set up signal coordination at multiple intersections—competencies essential to transportation professionals in charge of traffic operation at federal, state, and local levels. Aimed at students in transportation engineering programs with a focus on intersection signalization, the book is also ideal for researchers of traffic dynamics and municipal civil and transportation engineers.
Guidelines For Timing Yellow And All Red Intervals At Signalized Intersections
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Author : Hugh W. McGee
language : en
Publisher: Transportation Research Board
Release Date : 2012
Guidelines For Timing Yellow And All Red Intervals At Signalized Intersections written by Hugh W. McGee 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 2012 with Traffic safety categories.
TRB National Cooperative Highway Research Program (NCHRP) Report 731: Guidelines for Timing Yellow and All-Red Intervals at Signalized Intersections offers guidance for yellow change and all-red clearance intervals at signalized intersections. The guidelines provide a framework that can be easily applied by state and local transportation agencies.
Capacity Of Signalized Intersections
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Author : Eugene F. Reilly
language : en
Publisher:
Release Date : 1974
Capacity Of Signalized Intersections written by Eugene F. Reilly and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1974 with Roads categories.
Light Rail Vehicle Collisions With Vehicles At Signalized Intersections
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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.
Evaluation Of Safety Strategies At Signalized Intersections
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Author : Raghavan Srinivasan
language : en
Publisher: Transportation Research Board
Release Date : 2011
Evaluation Of Safety Strategies At Signalized Intersections written by Raghavan Srinivasan 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 2011 with Technology & Engineering categories.
TRB’s National Cooperative Highway Research Program (NCHRP) Report 705: Evaluation of Safety Strategies at Signalized Intersections explores crash modification factors (CMFs) for safety strategies at signalized intersections. CMFs are a tool for quickly estimating the impact of safety improvements.
Low Cost Safety Enhancements For Stop Controlled And Signalized Intersections
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Author :
language : en
Publisher:
Release Date : 2009
Low Cost Safety Enhancements For Stop Controlled And Signalized Intersections written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Roads categories.
"The purpose of this document is to present information on suggested effective, low-cost intersection countermeasures developed using intersection safety research results and input from an intersection safety expert panel. These low-cost countermeasures can be applied to a large number of intersections with a high frequency of crashes using a systematic approach. The net impact of such an approach can produce significant reductions in statewide intersection crashes, fatalities, and serious injuries. Low-cost countermeasures are defined as those ranging from $1,000 to $50,000 per intersection"--Page 4
Nchrp Report 705
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Author :
language : en
Publisher:
Release Date : 2011
Nchrp Report 705 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Electronic book categories.
Safety Evaluation Of Corner Clearance At Signalized Intersections
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Author : U. S. Department Of Transportation
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-07-18
Safety Evaluation Of Corner Clearance At Signalized Intersections written by U. S. Department Of Transportation and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-07-18 with categories.
Safety evaluation of corner clearance at signalized intersections /
Guidelines On The Use Of Auxiliary Through Lanes At Signalized Intersections
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Author : Brandon L. Nevers
language : en
Publisher: Transportation Research Board
Release Date : 2011
Guidelines On The Use Of Auxiliary Through Lanes At Signalized Intersections written by Brandon L. Nevers 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 2011 with Technology & Engineering categories.
At head of title: National Cooperative Highway Research Program.