Author: Kern Lee JacobsonPublisher:
ISBN:
Category : Roads
Languages : en
Pages : 230
Book Description
Quantitative Analysis Techniques for the Planning and Design of Signalized Intersections
Author: Kern Lee JacobsonPublisher:
ISBN:
Category : Roads
Languages : en
Pages : 230
Book Description
Capacity Analysis Techniques for Design of Signalized Intersections
Author: Jack E. LeischCapacity Analysis Techniques for Design of Signalized Intersections. Installment
Author: Jack E. LeischOperation, Analysis, and Design of Signalized Intersections
Author: Michael KytePublisher: Createspace Independent Publishing Platform
ISBN: 9781500204365
Category : Roads
Languages : en
Pages : 0
Book Description
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.
Planning and Design Guide, At-grade Intersections
Author: Jack E. Leisch & AssociatesPublisher:
ISBN:
Category : Roads
Languages : en
Pages : 760
Book Description
Planning and Design Procedures for Signalized Intersections
Author: Mark Robert VirklerPublisher:
ISBN:
Category : Electronic traffic controls
Languages : en
Pages : 114
Book Description
Signalized Intersections
Author: Lee August RodegerdtsPublisher:
ISBN:
Category : Roads
Languages : en
Pages : 376
Book Description
This guide provides a single, comprehensive document with methods for evaluating the safety and operations of signalized intersections and tools to remedy deficiencies. The treatments in this guide range from low-cost measures such as improvements to signal timing and signage, to high-cost measures such as intersection reconstruction or grade separation. Topics covered include fundamental principles of user needs, geometric design, and traffic design and operation; safety and operational analysis techniques; and a wide variety of treatments to address existing or projected problems, including individual movements and approaches, pedestrian and bicycle treatments, and corridor techniques. It also covers alternative intersection forms that improve intersection performance through the use of indirect left turns and other treatments. Each treatment includes a discussion of safety, operational performance, multimodal issues, and physical and economic factors that the practitioner should consider. Although the guide focuses primarily on high-volume signalized intersections, many treatments are applicable for lower volume intersections as well. The information contained in this guide is based on the latest research available on treatments and best practices in use by jurisdictions across the United States. Additional resources and references are highlighted for the student, practitioner, researcher, or decisionmaker who wishes to learn more about a particular subject.
Faculty Activities
Author: University of Washington. College of EngineeringPublisher:
ISBN:
Category : Engineering
Languages : en
Pages : 44
Book Description
Capacity Analysis Techniques for Signalized Intersections
Author: Jack E. LeischPublisher:
ISBN:
Category : Highway capacity
Languages : en
Pages : 46
Book Description
Author: