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Weaving Area Operations Study
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Download or read book Weaving Area Operations Study written by and published by . This book was released on 1973 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Configuration and the design and analysis of weaving sections by :
Download or read book Configuration and the design and analysis of weaving sections written by and published by . This book was released on 1972 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Analytical and Simulation Models of Weaving Area Operations Under Non-freeway Conditions by : Muhammad Shahid Iqbal
Download or read book Analytical and Simulation Models of Weaving Area Operations Under Non-freeway Conditions written by Muhammad Shahid Iqbal and published by . This book was released on 1994 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Highway Capacity Manual covers adequately the operation of weaving areas on freeways. Weaving on non-freeway facilities, however, has not been addressed as yet. This research effort presents a state-of-the-art procedural analytical approach and simulation models for the analysis of the level of service and operation of non-freeway weaving areas. Weaving under non-freeway conditions is classified into two broad categories; basic weave and ramp weave. The analytical models for these two weaving categories are calibrated and validated based on data obtained from several sites selected in the states of New Jersey and New York. New level of service criteria are developed for these two weaving categories. A FORTRAN program was developed to compute average weaving and nonweaving speeds and determine the level of service. In addition, simulation is used to develop a model for basic weave only. The simulation model is microscopic, enabling the user to study the dynamics of individual vehicles and the overall traffic flow.
Book Synopsis Operation of Major Freeway Weaving Areas by : Michael James Cassidy
Download or read book Operation of Major Freeway Weaving Areas written by Michael James Cassidy and published by . This book was released on 1988 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Study of Models for Optimum Assignment of Manpower to Weaving Operations by : Daw Rahil Alwerfalli
Download or read book A Study of Models for Optimum Assignment of Manpower to Weaving Operations written by Daw Rahil Alwerfalli and published by . This book was released on 1978 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis One-sided Weaving Analysis on One-way Frontage Roads by : Kay Fitzpatrick
Download or read book One-sided Weaving Analysis on One-way Frontage Roads written by Kay Fitzpatrick and published by . This book was released on 1995 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past few years, there have been many studies concerning the effects of weaving on freeway operations; however, there have been few attempts to study the effects of weaving at "non-freeway" sites, such as freeway frontage roads. As part of a larger study that is developing a level of service evaluation procedure for freeway frontage roads, this report addresses the issues associated with one-sided weaving on one-way frontage roads. The objectives of this study were to develop a technique for evaluating one-sided weaving operations, and to develop recommendations on minimum and desirable ramp spacing. To meet these objectives, both field data and computer simulation were used. From the results of this study, the following three levels of service were defined: unconstrained (weaving volume 1500 vph), constrained (weaving volume from 1500 - 3000 vph), and undesirable (weaving volume 3000 vph). Concerning ramp spacing, the results revealed that it is desirable to have a weaving length greater than 300 meters with a minimium value of 200 meters
Book Synopsis Operation of weaving area under non freeway conditions : Phase I interim report by : Ahmad Sadegh
Download or read book Operation of weaving area under non freeway conditions : Phase I interim report written by Ahmad Sadegh and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Principles of Woven Fabric Manufacturing by : Abhijit Majumdar
Download or read book Principles of Woven Fabric Manufacturing written by Abhijit Majumdar and published by CRC Press. This book was released on 2016-11-25 with total page 457 pages. Available in PDF, EPUB and Kindle. Book excerpt: Weaving as a subject is an integral part of any textile engineering/technology program, the others being fibre manufacturing, yarn manufacturing and textile chemical processing. This book amalgamates both the compartments (preparatory processes and the loom mechanism) of weaving technology and presents a holistic picture. The machine descriptions are presented from the viewpoint of principles and no attempt has been made to make them exhaustive by incorporating various models or variants. The mathematical relations among various parameters have been derived starting from the first principles and each chapter concludes with solved numerical examples.
Book Synopsis Estimation of the Capacity in the Freeway Weaving Areas for Traffic Management and Operations by : Eil Kwon
Download or read book Estimation of the Capacity in the Freeway Weaving Areas for Traffic Management and Operations written by Eil Kwon and published by . This book was released on 1999 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research developed an online procedure to estimate the weaving capacity through time for a simple ramp-weave section, the most common type of weaving areas in the Twin Cities' freeway network. The field observations and the analysis of the traffic data collected from a sample weaving section indicate that the freeway-to-ramp and ramp-to-freeway vehicles first merge and travel together at the beginning portion of the auxiliary lane before they split to the mainline or exit ramp.
Book Synopsis Modeling Capacity by : Sheida Khademi
Download or read book Modeling Capacity written by Sheida Khademi and published by . This book was released on 2022 with total page 207 pages. Available in PDF, EPUB and Kindle. Book excerpt: Systematic, well-designed research provides the most effective approach to the solution of many problems facing highway administrators and engineers. Traffic congestion on freeway systems is one significant concern in urban areas throughout the U.S.A. In this era, building new freeways to reduce congestion is less feasible due to the high capital and social costs. Thus, the effective management and operation of existing freeway facilities has become a preferred approach to reduce traffic congestion.A weaving section is a common design on major highway facilities that always has been an interest to researchers. Weaving areas are characterized by frequent lane changes, which significantly reduce the capacity of the freeway system. The HCM defined weaving capacity as "any combination of flows that causes the density to reach the LOS E/F boundary condition of 43 pc/m/ln for freeways" based on configuration, number of lanes in the weaving section, free-flow speed, length of the weave, and volume ratio (VR). Weaving sections are often problematic because of the increase in lane changing. These are common design elements on freeway facilities between an on ramp and off ramp with an auxiliary lane. They are located between merge and diverge points, near ramps where a lane is added or dropped, and at multilane ramps. A weaving section is a freeway segment in which traffic flows cross each other without traffic control (Minderhoud et al. 2003).Traffic demands exceeding segment capacity at weaving areas cause congestion, which affects the operation of the entire freeway section. Traffic operation problems often exist at weaving areas even when traffic demands are less than capacity and may be experienced at lower traffic flows because of the complexity of vehicle interactions, that is, increased lane changing, resulting in a degradation in level of service (LOS) and potential safety problems (Skabardonis et al. 2012).A significant amount of research has been done to estimate quality of service and capacity in weaving sections. However, little has been done to address multiple weaves. A multiple weaving area is one where two or more weaving areas overlap. No satisfactory means of estimating capacity has been found. Current procedures make assumptions about where weaving occurs in the individual weaving segments. A multiple weaving area is found when "a series of closely spaced merge and diverge areas create overlapping weaving movements (between different merge-diverge points)." (HCM 2016) This work examines capacity and quality of service conditions for a specific example of a multiple weave. Capacity is evaluated through micro-simulation by gradually raising flows for a range of geometric and fraction of weaving-traffic conditions. Models are developed to express capacity in terms of lane configuration, flow ratios, traffic mix (heavy traffic percentages), and overall flow rate. This study will be limited to cases where there are two overlapping weaving movements created by two entry ramps following by an exit ramp.The study will develop relations for capacity and service volume for a range of geometric, flow conditions, and traffic mix. Geometric conditions will include number of lanes on the main lane entry and each entrance ramp into and exit ramp from the weaving area (n), and distances (Ls) between ramps. Flow conditions will include a range of flows from each of the entry and exit roadways (V) in the multiple weaving area. The traffic mix represents the fraction of heavy vehicles in the traffic stream (PHV).In order to estimate the capacity of the weaving area, repeated simulations are performed under varying factors, number of lanes, flow range, heavy vehicle percentage, and routing. VISSIM outputs include link evaluation (average values for the link), and data collection (point measurement) files are extracted. These output files allow us to extract parameters, such as space mean speed for links, to identify the point at which speed start to drop. Also, entry and exit volumes to see if they are the same as the summation of input volume that we specified in the run. The poin tthat speed starts dropping significantly, or the summation of exit or entrance volume is much lower than what we entered in the system, suggests that we have reached the capacity point. VISSIM simulation runs are done using COM programming. This VISSIM scripting tool will enable the user to automate the analysis process. Using COM programming, this research has been able to performs many more simulation iterations than otherwise would have been possible in the same time period. Not only for the factors but also for the driving behavior parameters (following,lane change, and car following). To estimate capacity, we will consider all possible combinations of car following parameters to see what gives us the maximum capacity.At the same time, we will adjust different variables/factors we have introduced (number of lanes, flow, etc.) to see which one will give us a higher throughput, which is the capacity.This work's result will be presented to DOTs and MPOs as a guidebook. The file would be highly useful and money-saving for these agencies as they prefer to obtain higher capacity by managing existing freeways rather than buying rights of ways.
Author :National Research Council (U.S.). Highway Research Information Service Publisher : ISBN 13 : Total Pages :984 pages Book Rating :4.3/5 (91 download)
Book Synopsis HRIS Abstracts by : National Research Council (U.S.). Highway Research Information Service
Download or read book HRIS Abstracts written by National Research Council (U.S.). Highway Research Information Service and published by . This book was released on 1980 with total page 984 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Weaving: Technology and Operations by : Allan Ormerod
Download or read book Weaving: Technology and Operations written by Allan Ormerod and published by . This book was released on 1995 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Christopher M Rein Editor Publisher :Createspace Independent Publishing Platform ISBN 13 :9781727841237 Total Pages :252 pages Book Rating :4.8/5 (412 download)
Book Synopsis Weaving the Tangled Web by : Christopher M Rein Editor
Download or read book Weaving the Tangled Web written by Christopher M Rein Editor and published by Createspace Independent Publishing Platform. This book was released on 2018-10-13 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 1, Weaving the Tangled Web: Military Deception in Large-Scale Combat Operations surveys twelve cases of MILDEC from World War I through Desert Storm focusing on how armies have successfully used preconceptions to either immobilize an opponent or force the expenditure of energy in unproductive directions. The case studies span the major wars of the twentieth-century from the perspectives of several great powers and offer both a primer for planners of military deception and a caution for all military personnel to remain constantly on guard for practitioners of this ancient art.
Book Synopsis Operation of Major Freeway Weaving Areas by : Alexander Skabardonis
Download or read book Operation of Major Freeway Weaving Areas written by Alexander Skabardonis and published by . This book was released on 1988 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modeling Safety and Traffic Operations at Freeway Weaving Sections by : Joseph Fazio
Download or read book Modeling Safety and Traffic Operations at Freeway Weaving Sections written by Joseph Fazio and published by . This book was released on 1990 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Design of New Weave Patterns by : Radostina A. Angelova
Download or read book Design of New Weave Patterns written by Radostina A. Angelova and published by CRC Press. This book was released on 2019-11-01 with total page 171 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a systematic study on methods used for the creation of weave patterns for simple structures. Firstly, it explains known techniques for designing new weave patterns classified as patterns merge, motifs, patterns insertion and change of the displacement number. These are discussed as possibilities to create different textures and weaving effects supported by figures of patterns, colour view, and fabric appearance simulation. Secondly, it explains original methods for design of new weave patterns based on Boolean operations, musical scores, written texts and braille alphabet, including transformations performed, advantages/disadvantages, possible applications and designs.
Author :Netherlands Research School for Transport, Infrastructure and Logistics Publisher :Delft University Press ISBN 13 : Total Pages :462 pages Book Rating :4.3/5 (555 download)
Book Synopsis A World of Transport, Infrastructure and Logistics by : Netherlands Research School for Transport, Infrastructure and Logistics
Download or read book A World of Transport, Infrastructure and Logistics written by Netherlands Research School for Transport, Infrastructure and Logistics and published by Delft University Press. This book was released on 2004 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modeling behavioral responses to road pricing using stated choice data. Integrated model predictive control for mixed urban & freeway networks. Modeling the impact of habit, ATIS & learning on route choice. Modeling firm location in space-model estimations of the Province of South-Holland. Level difference impacts in passenger route choice modeling. Real time train dispatching system based upon block signaling theory. Control framework for automatic highway system operations. Overtaking frequency on two-lane rural roads. Optimal freeway control in networks with bottlenecks & static demands. Multi-modal route choice. Dynamic traffic networks. Travel behavior. Road traffic management. Macroscopic traffic flow. Car-Following behavior. Queue-tail warning driver support system. Overflows at urban corridors. Railway timetables.