Analysis Of Non Traditional High Volume Intersection Design

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Analysis of Non-traditional, High-volume Intersection Design

Author : Caroline M. Kone
Publisher :
ISBN 13 :
Total Pages : 332 pages
Book Rating : 4.:/5 (841 download)

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Book Synopsis Analysis of Non-traditional, High-volume Intersection Design by : Caroline M. Kone

Download or read book Analysis of Non-traditional, High-volume Intersection Design written by Caroline M. Kone and published by . This book was released on 2007 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: Unconventional intersection designs have been used in an effort to reduce delay and congestion at signalized intersections. The objective of identifying intersection designs that optimize throughput and an analysis of the designs based upon cost, level of service, capacity, and operation would provide a comparison of alternative intersection treatments available for possible use in North Carolina. Existing literature revealed some comparisons of unconventional intersection design as well as evaluations for median and left-turn lane treatments. Using a SYNCHRO analysis to determine the level of service (LOS), eight unconventional intersection types were compared using a conventional signalized intersection as a base design. The same analysis was performed for six intersections in North Carolina that met criteria for consideration. Construction costs were estimated for each intersection type and compared to intersections in North Carolina. All of the North Carolina intersections were recommended for unconventional intersection design retrofit including the Center-Turn Overpass, the Median U-turn, the Michigan Diamond, and the Quadrant. Others considered were the Echelon, the Continuous Flow, and the Single Point Urban Interchange. The Tight Diamond intersection type was removed from research due to an unexplained flaw in the modeling. Future research may lead to case studies of intersections that have already been retrofitted with the non-traditional intersection types.

Performance Analysis of Parallel Flow Intersection and Displaced Left Turn Intersection Designs

Author : Amit Dhatrak
Publisher :
ISBN 13 :
Total Pages : 58 pages
Book Rating : 4.:/5 (691 download)

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Book Synopsis Performance Analysis of Parallel Flow Intersection and Displaced Left Turn Intersection Designs by : Amit Dhatrak

Download or read book Performance Analysis of Parallel Flow Intersection and Displaced Left Turn Intersection Designs written by Amit Dhatrak and published by . This book was released on 2010 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: The displaced left turn (DLT) (also known as the continuous flow intersection (CFI)) design has proven to be a superior alternative to the conventional intersection in terms of handling heavy volumes during peak periods. In locations where the availability of additional right of way and driveway access is not a major concern, the DLT design is a cost effective and time saving option compared to the expensive option of grade separated interchanges. Recently, a new non-traditional intersection design called the parallel flow intersection (PFI) has been proposed. The PFI is also an at-grade design and operates with the same number of signal phases as a DLT. This research compares the operational performance of DLT and PFI designs based on the maximum through and left turn movement throughputs for three different high volume scenarios using traffic simulation. The results indicate that maximum throughput values of through movement in PFI were very close to the values obtained for DLT. The designs produced similar results mainly because both operate as two-phase signals (at the main intersection) with equal green times for through movements. The left turn movement throughputs in PFI were found to be lower than those at DLT. In particular, for two study cases, the DLT was able to process 180 and 80 more vehicles per hour per lane than the PFI. This can be attributed to the fact that, on average, the left turning vehicles experience greater number of stops in a PFI than they would in a DLT.

A Comparison of Non-traditional Intersection Designs Using Microscopic Simulation

Author : Steve Chery
Publisher :
ISBN 13 :
Total Pages : 282 pages
Book Rating : 4.:/5 (678 download)

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Book Synopsis A Comparison of Non-traditional Intersection Designs Using Microscopic Simulation by : Steve Chery

Download or read book A Comparison of Non-traditional Intersection Designs Using Microscopic Simulation written by Steve Chery and published by . This book was released on 2010 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: In light of the growing traffic demand and the futility of the conventional solutions, many states have been considering alternative intersection designs. Researchers have demonstrated the benefits of several unconventional intersection designs and their implementation at different sites throughout the United States and abroad have delivered significant improvement in traffic compared to the conventional intersections. A signalized and un-signalized roundabout, a Continuous Flow Intersection, and a Parallel Flow Intersection have been evaluated and compared in this research as viable alternatives to the traditional single intersection. Using micro-simulation platforms, AIMSUN 6.0 and VISSIM 5.10, models of each intersection are evaluated for low, medium, and high entrance volumes. The analysis revealed that the Roundabout performs better at low entering volumes while the Continuous flow yields better results at high volumes.

The Great Power Competition Volume 5

Author : Adib Farhadi
Publisher : Springer Nature
ISBN 13 : 3031404513
Total Pages : 413 pages
Book Rating : 4.0/5 (314 download)

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Book Synopsis The Great Power Competition Volume 5 by : Adib Farhadi

Download or read book The Great Power Competition Volume 5 written by Adib Farhadi and published by Springer Nature. This book was released on 2023-10-09 with total page 413 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Russian Invasion of Ukraine and Implications for the Central Region addresses national security threats and strategic opportunities for the United States and its allies in the Middle East and Central Asia following Russia’s invasion of Ukraine. Recognizing that integrated deterrence is not constrained by geography or domain, this book focuses on the complex threats and challenges confronting U.S. national security and foreign policy in a post-Ukraine invasion environment. That is to say, what happens in Ukraine does not stay in Ukraine. It affects everyone from the region to the cyberspace domain to people on the other side of the world, due to changes in commodity prices. Specifically, this volume explores how revised analyses of Russia may alter U.S. and allied strategies in a shifting international system and within the framing of strategic competition. Experts in this volume examine how the war in Ukraine will influence Russian strategy and foreign policy in the Middle East, Central Asia, and globally; what effect the Ukraine invasion could have on global and regional geopolitics and geoeconomics; and the United States’ ability to protect national interests in the Central Region. The reasons for this are multiple and complex. In this volume, we explore many issues that have confounded security experts by asking questions such as: What happens after the Russian invasion? What lessons did the U.S., Ukraine, NATO, and the European Union learn about Russia? What lessons did Russia learn about itself and its military after the Ukraine invasion? What lessons did the U.S. learn in Afghanistan that apply to Ukraine? Why was the initial analysis of the Russian invasion so wrong? How has power shifted in the international system since the Ukraine invasion? How has the security environment shifted since the Ukraine invasion? For the U.S. to continue supporting its partners in the Middle East and Central Asia, it must anticipate what new opportunities will arise from Russia’s missteps in Ukraine. The Russian Invasion of Ukraine and Implications for the Central Region addresses these challenges and opportunities and informs policymakers on the changing contours of the Great Power Competition.

A Comparison Based on the Measures of Effectiveness of a Typical Intersection Design to Seven Unconventional Intersection Designs

Author : James Andrew Eagle
Publisher :
ISBN 13 :
Total Pages : 416 pages
Book Rating : 4.:/5 (841 download)

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Book Synopsis A Comparison Based on the Measures of Effectiveness of a Typical Intersection Design to Seven Unconventional Intersection Designs by : James Andrew Eagle

Download or read book A Comparison Based on the Measures of Effectiveness of a Typical Intersection Design to Seven Unconventional Intersection Designs written by James Andrew Eagle and published by . This book was released on 2006 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: The research presented here will show how traditional intersection designs compare to unconventional intersection/interchange designs. The addition of lanes and signal timing optimization has long been used to increase capacity and traffic flow. However, these may not be the best alternatives for a given location. Some unconventional intersection/interchange designs may be more suited for a rural area with high speeds on the major-movement. The traditional alternatives were compared to several unconventional intersections. Eight different traffic volume scenarios were simulated using SYNCHRO, a traffic modeling software program. These scenarios were used to show how an intersection design would react to certain traffic volume characteristics. The scenarios represented different traffic volume distributions at the intersection. For example, the traffic volumes used in scenario 1 were considered to be typical intersection volumes. The remaining seven scenarios added traffic volumes to different turn or through movements. This resulted in eight traffic volume scenarios for the intersection. The study resulted in a table that summarized the evaluation. The table showed which designs operated best under certain traffic volume conditions. Transportation engineers could use the table as a starting point when designing rural intersections.

Maximizing Intersection Capacity and Minimizing Delay Through Unconventional Geometric Design of Continuous-flow Intersections

Download Maximizing Intersection Capacity and Minimizing Delay Through Unconventional Geometric Design of Continuous-flow Intersections PDF Online Free

Author : Sai Geetha Koganti
Publisher :
ISBN 13 :
Total Pages : 46 pages
Book Rating : 4.:/5 (9 download)

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Book Synopsis Maximizing Intersection Capacity and Minimizing Delay Through Unconventional Geometric Design of Continuous-flow Intersections by : Sai Geetha Koganti

Download or read book Maximizing Intersection Capacity and Minimizing Delay Through Unconventional Geometric Design of Continuous-flow Intersections written by Sai Geetha Koganti and published by . This book was released on 2012 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: Typical four phase four legged intersection often operate inefficiently restricting the vehicle throughput thus resulting in larger delays. The impact of left turns is high for the larger delays and is also the most significant factor contributing to the level of service of the conventional intersections. So, by altering the geometric design of the conventional intersection, capacity can be increased and intersection delay can be decreased. Two phase intersections (2-PI) utilize an unconventional lane arrangement in order to maximize the vehicular throughput. This arrangement involves displacing left turn lanes across opposing through traffic before the main intersection is reached. Such an alteration allows left and through vehicles to proceed simultaneously, and consequently, both the intersection capacity and delay are improved. Numerous studies have validated the operational improvements associated with such a geometric design, but in-depth analysis of this unconventional system can provide a maximized effect. The main aim of the research is to show how split 2-phase unconventional intersections can minimize delay and maximize capacity for the same given cycle length when compared to the conventional intersections and also how pedestrian safety is increased when compared to the regular two phase and conventional intersections. The main research goal is obtained by setting two objectives. The first objective is to minimize delay of the proposed unconventional intersection when the volume is low. The second objective is to maximize capacity when the volume is high and congested. A non-linear programming model for finding optimum cycles times for both the objective functions under different volume conditions is developed using MATLAB and the results were used in VISSIM to run simulations and check the accuracy of model. After defining the main objective functions and a list of constraints, preliminary tests were performed to show the effectiveness of the method adapting to changes in traffic demand. The results found from the optimization were used to run simulation tests comparing the capacity and delay at a split 2-phase intersection to those from a conventional four-legged geometric design. VISSIM was used for analysis of unconventional intersection and also for conventional intersection for comparison. The results of several trials have strongly showed the optimum performance of the proposed unconventional geometric arrangement.

Marine Design XIII, Volume 2

Author : Pentti Kujala
Publisher : CRC Press
ISBN 13 : 0429803257
Total Pages : 512 pages
Book Rating : 4.4/5 (298 download)

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Book Synopsis Marine Design XIII, Volume 2 by : Pentti Kujala

Download or read book Marine Design XIII, Volume 2 written by Pentti Kujala and published by CRC Press. This book was released on 2018-06-04 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is volume 2 of a 2-volume set. Marine Design XIII collects the contributions to the 13th International Marine Design Conference (IMDC 2018, Espoo, Finland, 10-14 June 2018). The aim of this IMDC series of conferences is to promote all aspects of marine design as an engineering discipline. The focus is on key design challenges and opportunities in the area of current maritime technologies and markets, with special emphasis on: • Challenges in merging ship design and marine applications of experience-based industrial design • Digitalisation as technological enabler for stronger link between efficient design, operations and maintenance in future • Emerging technologies and their impact on future designs • Cruise ship and icebreaker designs including fleet compositions to meet new market demands To reflect on the conference focus, Marine Design XIII covers the following research topic series: •State of art ship design principles - education, design methodology, structural design, hydrodynamic design; •Cutting edge ship designs and operations - ship concept design, risk and safety, arctic design, autonomous ships; •Energy efficiency and propulsions - energy efficiency, hull form design, propulsion equipment design; •Wider marine designs and practices - navy ships, offshore and wind farms and production. Marine Design XIII contains 2 state-of-the-art reports on design methodologies and cruise ships design, and 4 keynote papers on new directions for vessel design practices and tools, digital maritime traffic, naval ship designs, and new tanker design for arctic. Marine Design XIII will be of interest to academics and professionals in maritime technologies and marine design.

Manufacturing Science and Engineering, 1994: Non-traditional design and layered manufacturing. Rolling technology. Intelligent machine tool systems. Materials for 21st century manufacturing

Download Manufacturing Science and Engineering, 1994: Non-traditional design and layered manufacturing. Rolling technology. Intelligent machine tool systems. Materials for 21st century manufacturing PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : 524 pages
Book Rating : 4.E/5 ( download)

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Book Synopsis Manufacturing Science and Engineering, 1994: Non-traditional design and layered manufacturing. Rolling technology. Intelligent machine tool systems. Materials for 21st century manufacturing by :

Download or read book Manufacturing Science and Engineering, 1994: Non-traditional design and layered manufacturing. Rolling technology. Intelligent machine tool systems. Materials for 21st century manufacturing written by and published by . This book was released on 1994 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Roundabouts

Author : Lee August Rodegerdts
Publisher : Transportation Research Board
ISBN 13 : 0309155118
Total Pages : 407 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Roundabouts by : Lee August Rodegerdts

Download or read book Roundabouts written by Lee August Rodegerdts and published by Transportation Research Board. This book was released on 2010 with total page 407 pages. Available in PDF, EPUB and Kindle. Book excerpt: TRB's National Cooperative Highway Research Program (NCHRP) Report 672: Roundabouts: An Informational Guide - Second Edition explores the planning, design, construction, maintenance, and operation of roundabouts. The report also addresses issues that may be useful in helping to explain the trade-offs associated with roundabouts. This report updates the U.S. Federal Highway Administration's Roundabouts: An Informational Guide, based on experience gained in the United States since that guide was published in 2000.

Traffic Engineering Handbook

Author : ITE (Institute of Transportation Engineers)
Publisher : John Wiley & Sons
ISBN 13 : 1118762304
Total Pages : 688 pages
Book Rating : 4.1/5 (187 download)

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Book Synopsis Traffic Engineering Handbook by : ITE (Institute of Transportation Engineers)

Download or read book Traffic Engineering Handbook written by ITE (Institute of Transportation Engineers) and published by John Wiley & Sons. This book was released on 2016-01-26 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt: Get a complete look into modern traffic engineering solutions Traffic Engineering Handbook, Seventh Edition is a newly revised text that builds upon the reputation as the go-to source of essential traffic engineering solutions that this book has maintained for the past 70 years. The updated content reflects changes in key industry standards, and shines a spotlight on the needs of all users, the design of context-sensitive roadways, and the development of more sustainable transportation solutions. Additionally, this resource features a new organizational structure that promotes a more functionally-driven, multimodal approach to planning, designing, and implementing transportation solutions. A branch of civil engineering, traffic engineering concerns the safe and efficient movement of people and goods along roadways. Traffic flow, road geometry, sidewalks, crosswalks, cycle facilities, shared lane markings, traffic signs, traffic lights, and more—all of these elements must be considered when designing public and private sector transportation solutions. Explore the fundamental concepts of traffic engineering as they relate to operation, design, and management Access updated content that reflects changes in key industry-leading resources, such as the Highway Capacity Manual (HCM), Manual on Uniform Traffic Control Devices (MUTCD), AASSHTO Policy on Geometric Design, Highway Safety Manual (HSM), and Americans with Disabilities Act Understand the current state of the traffic engineering field Leverage revised information that homes in on the key topics most relevant to traffic engineering in today's world, such as context-sensitive roadways and sustainable transportation solutions Traffic Engineering Handbook, Seventh Edition is an essential text for public and private sector transportation practitioners, transportation decision makers, public officials, and even upper-level undergraduate and graduate students who are studying transportation engineering.

A Policy on Design Standards--interstate System

Author :
Publisher : Aashto
ISBN 13 :
Total Pages : 20 pages
Book Rating : 4.3/5 (555 download)

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Book Synopsis A Policy on Design Standards--interstate System by :

Download or read book A Policy on Design Standards--interstate System written by and published by Aashto. This book was released on 2005 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Traffic Control Systems Handbook

Author :
Publisher :
ISBN 13 :
Total Pages : 670 pages
Book Rating : 4.:/5 (318 download)

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Book Synopsis Traffic Control Systems Handbook by :

Download or read book Traffic Control Systems Handbook written by and published by . This book was released on 1976 with total page 670 pages. Available in PDF, EPUB and Kindle. Book excerpt: This handbook, which was developed in recognition of the need for the compilation and dissemination of information on advanced traffic control systems, presents the basic principles for the planning, design, and implementation of such systems for urban streets and freeways. The presentation concept and organization of this handbook is developed from the viewpoint of systems engineering. Traffic control studies are described, and traffic control and surveillance concepts are reviewed. Hardware components are outlined, and computer concepts, and communication concepts are stated. Local and central controllers are described, as well as display, television and driver information systems. Available systems technology and candidate system definition, evaluation and implementation are also covered. The management of traffic control systems is discussed.

Design for Additive Manufacturing

Author : Martin Leary
Publisher : Elsevier
ISBN 13 : 0128168870
Total Pages : 358 pages
Book Rating : 4.1/5 (281 download)

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Book Synopsis Design for Additive Manufacturing by : Martin Leary

Download or read book Design for Additive Manufacturing written by Martin Leary and published by Elsevier. This book was released on 2019-12-03 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: Design for Additive Manufacturing is a complete guide to design tools for the manufacturing requirements of AM and how they can enable the optimization of process and product parameters for the reduction of manufacturing costs and effort. This timely synopsis of state-of-the-art design tools for AM brings the reader right up-to-date on the latest methods from both academia and industry. Tools for both metallic and polymeric AM technologies are presented and critically reviewed, along with their manufacturing attributes. Commercial applications of AM are also explained with case studies from a range of industries, thus demonstrating best-practice in AM design. Covers all the commonly used tools for designing for additive manufacturing, as well as descriptions of important emerging technologies Provides systematic methods for optimizing AM process selection for specific production requirement Addresses design tools for both metallic and polymeric AM technologies Includes commercially relevant case studies that showcase best-practice in AM design, including the biomedical, aerospace, defense and automotive sectors

Guide for the Planning, Design, and Operation of Pedestrian Facilities

Author :
Publisher : AASHTO
ISBN 13 : 1560512717
Total Pages : 142 pages
Book Rating : 4.5/5 (65 download)

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Book Synopsis Guide for the Planning, Design, and Operation of Pedestrian Facilities by :

Download or read book Guide for the Planning, Design, and Operation of Pedestrian Facilities written by and published by AASHTO. This book was released on 2004 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Median Intersection Design for Rural High-speed Divided Highways

Author : T. H. Maze
Publisher : Transportation Research Board National Research
ISBN 13 :
Total Pages : 172 pages
Book Rating : 4.3/5 (555 download)

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Book Synopsis Median Intersection Design for Rural High-speed Divided Highways by : T. H. Maze

Download or read book Median Intersection Design for Rural High-speed Divided Highways written by T. H. Maze and published by Transportation Research Board National Research. This book was released on 2010 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes common safety issues at median intersections on rural divided highways and presents innovative geometric and operational treatments for addressing those issues. Ten case studies illustrate how they have been applied in the field. The report includes recommendations for modifications to the AASHTO A Policy on Geometric Design of Highways and Streets (Green Book) and the Manual on Uniform Traffic Control Devices (MUTCD).

Impacts of Access Management Techniques

Author : Jerome S. Gluck
Publisher : Transportation Research Board
ISBN 13 : 9780309063128
Total Pages : 168 pages
Book Rating : 4.0/5 (631 download)

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Book Synopsis Impacts of Access Management Techniques by : Jerome S. Gluck

Download or read book Impacts of Access Management Techniques written by Jerome S. Gluck and published by Transportation Research Board. This book was released on 1999 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Urban Bikeway Design Guide, Second Edition

Author : National Association of City Transportation Officials
Publisher : Island Press
ISBN 13 : 1610915658
Total Pages : 258 pages
Book Rating : 4.6/5 (19 download)

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Book Synopsis Urban Bikeway Design Guide, Second Edition by : National Association of City Transportation Officials

Download or read book Urban Bikeway Design Guide, Second Edition written by National Association of City Transportation Officials and published by Island Press. This book was released on 2014-03-24 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: NACTO's Urban Bikeway Design Guide quickly emerged as the preeminent resource for designing safe, protected bikeways in cities across the United States. It has been completely re-designed with an even more accessible layout. The Guide offers updated graphic profiles for all of its bicycle facilities, a subsection on bicycle boulevard planning and design, and a survey of materials used for green color in bikeways. The Guide continues to build upon the fast-changing state of the practice at the local level. It responds to and accelerates innovative street design and practice around the nation.