Download or read book Examination of Core Highway Capacity Manual Concepts Freeway traffic lane distribution written by Brian L. Smith and published by . This book was released on 2002 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Examination of Core Highway Capacity Manual Concepts written by Brian L. Smith and published by . This book was released on 2002 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Highway Capacity Manual (HCM) is one of the most widely used traffic engineering guidance documents in the world. It was originally published in 1950, and has been under constant revision since. Unfortunately, due to past cost and time constraints associated with traffic data collection, much of information in the manual is based on research conducted using relatively small data sets. This calls into question the statistical significance of some of the manual's material. The Virginia Smart Travel Laboratory is a nationally unique research facility. The distinguishing feature of the laboratory is its direct connection to operational VDOT transportation management systems. This gives the laboratory access to unprecedented quantities of traffic data. The purpose of this research project is to use this data to investigate a key concept of the HCM: freeway traffic lane distribution. An important consideration of transportation management is the distribution of lane use by vehicles. This distribution plays a significant role in how traffic management devices, such as variable message signs, lane control signals, and ramp meters are utilized. Unfortunately, according to the HCM, "when two or more lanes are available for traffic in a single direction, the distribution in lane use varies widely ... there are not "typical" lane distributions." An investigation of this concept using a large set of data from freeways in the urbanized Hampton Roads region of Virginia led to the following conclusions: The distribution of vehicles along a specific link of a freeway system does tend to follow predictable trends by time-of-day. A missing data estimation procedure can be developed that exploits the consistency of lane distribution by time-of-day and location. This estimation methodology proved to accurately estimate missing detector data, generally producing results within the 6%-8% error range. Finally, the report presents the following recommendations to VDOT. VDOT should collect and archive traffic data at the lane level to support future applications, such as the missing data estimation methodology. VDOT should use the lane distribution-based missing data estimation methodology described in this report in Smart Traffic Centers and permanent count stations located on freeways. VDOT should formally transmit this report to TRB for committee consideration as the next version of the HCM is developed.
Download or read book The Highway Capacity Manual A Conceptual and Research History written by Roger . P Roess and published by Springer Science & Business Media. This book was released on 2014-04-03 with total page 491 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since 1950, the Highway Capacity Manual has been a standard used in the planning, design, analysis, and operation of virtually any highway traffic facility in the United States. It has also been widely used abroad, and has spurred the development of similar manuals in other countries. The twin concepts of capacity and level of service have been developed in the manual, and methodologies have been presented that allow highway traffic facilities to be designed on a common basis, and allow for the analysis of operational quality under various traffic demand scenarios. The manual also addresses related pedestrian, bicycle, and transit issues. This book details the fundamental development of the concepts of capacity and level of service, and of the specific methodologies developed to describe them over a wide range of facility types. The book is comprised of two volumes. Volume 1 (this book) focuses on the development of basic principles, and their application to uninterrupted flow facilities: freeways, multilane highways, and two-lane highways. Weaving, merging, and diverging segments on freeways and multilane highways are also discussed in detail. Volume 2 focuses on interrupted flow facilities: signalized and unsignalized intersections, urban streets and arterials. It is intended to help users of the manual understand how concepts, approaches, and specific methodologies were developed, and to understand the underlying principles that each embodies. It is also intended to act as a basic reference for current and future researchers who will continue to develop new and improved capacity analysis methodologies for many years to come.
Download or read book The Highway Capacity Manual A Conceptual and Research History Volume 2 written by Elena S. Prassas and published by Springer Nature. This book was released on 2020-01-08 with total page 395 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since 1950, the Highway Capacity Manual has been a standard used in the planning, design, analysis, and operation of virtually any highway traffic facility in the United States. It has also been widely used around the globe and has inspired the development of similar manuals in other countries. This book is Volume II of a series on the conceptual and research origins of the methodologies found in the Highway Capacity Manual. It focuses on the most complex points in a traffic system: signalized and unsignalized intersections, and the concepts and methodologies developed over the years to model their operations. It also includes an overview of the fundamental concepts of capacity and level of service, particularly as applied to intersections. The historical roots of the manual and its contents are important to understanding current methodologies, and improving them in the future. As such, this book is a valuable resource for current and future users of the Highway Capacity Manual, as well as researchers and developers involved in advancing the state-of-the-art in the field.
Download or read book Highway Capacity Manual written by National Research Council (U.S.). Highway Research Board. Committee on Highway Capacity and published by . This book was released on 1950 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Two lane Highway Traffic Operations written by John R. McLean and published by Taylor & Francis. This book was released on 1989 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: First Published in 1989. Routledge is an imprint of Taylor & Francis, an informa company.
Download or read book The 1985 Highway Capacity Manual written by and published by . This book was released on 1986 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a summary of the 1985 Highway Capacity Manual (HCM), and has been prepared for personnel of the Federal Highway Administration to assist in the transition from the 1965 HCM to the 1985 HCM. This summary highlights the major differences between the 1965 HCM and the 1985 HCM. The key features and the principal contents of the 1985 HCM are also highlighted. The 1985 HCM is a major evolutionary step forward in the state-of-the-art of highway and traffic operational and design analysis. It provides a means of evaluating alternative solutions to traffic problems, solutions which still require the expertise and creativity of the professional engineer.
Download or read book The Highway Capacity Manual A Conceptual and Research History written by Roger P. Roess and published by Springer. This book was released on 2014-04-22 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since 1950, the Highway Capacity Manual has been a standard used in the planning, design, analysis, and operation of virtually any highway traffic facility in the United States. It has also been widely used abroad, and has spurred the development of similar manuals in other countries. The twin concepts of capacity and level of service have been developed in the manual, and methodologies have been presented that allow highway traffic facilities to be designed on a common basis, and allow for the analysis of operational quality under various traffic demand scenarios. The manual also addresses related pedestrian, bicycle, and transit issues. This book details the fundamental development of the concepts of capacity and level of service, and of the specific methodologies developed to describe them over a wide range of facility types. The book is comprised of two volumes. Volume 1 (this book) focuses on the development of basic principles, and their application to uninterrupted flow facilities: freeways, multilane highways, and two-lane highways. Weaving, merging, and diverging segments on freeways and multilane highways are also discussed in detail. Volume 2 focuses on interrupted flow facilities: signalized and unsignalized intersections, urban streets and arterials. It is intended to help users of the manual understand how concepts, approaches, and specific methodologies were developed, and to understand the underlying principles that each embodies. It is also intended to act as a basic reference for current and future researchers who will continue to develop new and improved capacity analysis methodologies for many years to come.
Download or read book Capacity Analysis Techniques for Design and Operation of Freeway Facilities written by Jack E. Leisch and published by . This book was released on 1974 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Use of Shoulders and Narrow Lanes to Increase Freeway Capacity written by J. E. Curren and published by Transportation Research Board. This book was released on 1995 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Highway Capacity Analysis written by William Sampson and published by Cognella Academic Publishing. This book was released on 2017-12-21 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Highway Capacity Analysis provides students with foundational principles, concepts, and theory regarding capacity analysis to prepare them for work as an operational traffic engineer. Students learn how the mastery of capacity analysis applies to signal operations and optimization, roadway and intersection design, transportation planning, and traffic impact analysis. The text also prepares students to use the necessary software employed within the traffic engineering profession. The text is divided into three sections: Uninterrupted Flow, Interrupted Flow, and Application Extensions. In Part I, students learn how to analyze uninterrupted flow segments and facilities, including freeways and highways. Part II discusses the analysis of stop control, roundabouts, signalized intersections, urban streets, interchanges, and alternative intersections, with multimodal analysis and travel time reliability included where applicable. Part III extends the procedural analyses outlined in Parts I and II into broader applications, including signal timing optimization and traffic impact studies. Students follow step-by-step procedures to work through exercises by hand, then code them into software to experience their learnings in practice. Providing a practical, succinct, and logical approach to traffic engineering processes and procedures, Highway Capacity Analysis prepares students to enter the traffic engineering profession with the knowhow and practical experience required to succeed. The text is well suited to courses in traffic engineering and transportation.
Download or read book Highway Capacity Manual 7th Edition written by National Academies of Sciences Engineering and Medicine and published by . This book was released on 2022-01-11 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Highway Capacity Manual 1965 written by National Research Council (U.S.). Highway Research Board. Committee on Highway Capacity and published by . This book was released on 1965 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Improved Freeway Analysis Techniques written by Bruce W. Robinson and published by . This book was released on 1992 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Highway Capacity Manual written by National Research Council (U.S.). Transportation Research Board and published by Transportation Research Board National Research. This book was released on 1994 with total page 590 pages. Available in PDF, EPUB and Kindle. Book excerpt: The fourteen chapters in this Third Edition of the HCM represent revisions and updates of material contained in the earlier editions, and new material reflecting the many changes in the characteristics of travel and in the information needed to conduct highway capacity analyses.
Download or read book Highway Capacity Manual 7th Edition written by National Academies of Sciences Engineering and Medicine and published by . This book was released on 2022-01-11 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Highway Traffic Analysis and Design written by Richard J. Salter and published by . This book was released on 1976 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt:
