Download or read book Uncontrolled Pedestrian Crossing Evaluation Incorporating Highway Capacity Manual Unsignalized Pedestrian Crossing Analysis Methodology written by Bryan Nemeth and published by . This book was released on 2014 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report provides a procedure for the evaluation of uncontrolled pedestrian crossing locations that takes into account accepted practice, safety and delay. Safety considerations have been paramount to the analysis of crossings but delay is often not considered. The Highway Capacity Manual (HCM) provides a methodology for determining delay that can be included in the analysis of a crossing location. The analysis procedure takes into account previous research procedures and adds in delay considerations to develop a methodology appropriate for use by jurisdictional agencies in the evaluation of what is needed for treatments at uncontrolled pedestrian crossings. The evaluation procedure developed runs through a multi-step process from field data review through the consideration of appropriate treatment options. The evaluation procedure takes into account field data collection; safety/crash history; stopping sight distance; HCM Level of Service (LOS); pedestrian sight distance; origins and destinations/alternate routes; access spacing and functional classification; roadway speed and pedestrian use; FHWA guidance for placement based on safety considerations; school crossings; and appropriate treatment options. Treatment options include four different classes: Signing and Marking Treatments; Traffic Calming Treatments; Uncontrolled Crossing Treatments; and High Level Treatments.
Download or read book NCHRP Report 562 written by and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Improving Pedestrian Safety at Unsignalized Crossings written by Kay Fitzpatrick and published by Transportation Research Board National Research. This book was released on 2006 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: TRB's Transit Cooperative Research Program (TCRP) and National Cooperative Highway Research Program have jointly produced and published Improving Pedestrian Safety at Unsignalized Crossings. The product, which can be referred to as TCRP Report 112 or NCHRP Report 562, examines selected engineering treatments to improve safety for pedestrians crossing high-volume and high-speed roadways at unsignalized locations. The report presents the edited final report and Appendix A. TCRP Web-Only Document 30/NCHRP Web-Only Document 91 (Pedestrian Safety at Unsignalized Crossings: Appendices B to O) contains the remaining appendixes of the contractor's final report.
Download or read book Pedestrian Facilities Users Guide Providing Safety and Mobility written by Charles V. Zegeer and published by DIANE Publishing. This book was released on 2002 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: This guide is intended to provide information on how to identify safety and mobility needs for pedestrians with the roadway right-of-way. Useful for engineers, planners, safety professionals and decision-makers, the guide covers such topics as: the Walking Environment including sidewalks, curb ramps, crosswalks, roadway lighting and pedestrian over and under passes; Roadway Design including bicycle lanes, roadway narrowing, reducing the number of lanes, one-way/two-way streets, right-turn slip lanes and raised medians; Intersections with roundabouts, T-intersections and median barriers; and Traffic calming designs.
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:
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.
Download or read book Evaluation of Pedestrian Crosswalks in an Urban Environment written by Darcin Akin and published by . This book was released on 2000 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Intersections Control and Safety written by Antonio Pratelli and published by WIT Press. This book was released on 2013-05-22 with total page 165 pages. Available in PDF, EPUB and Kindle. Book excerpt: Starting off a new series on Transport Systems and Traffic Engineering the book aims to help bridge the gap between research and practice, encouraging a critical dialogue in different, specific, subjects spanning innovation, development and technology transfer. Those who offer innovation often do not meet the immediate needs of practitioners, especially in the traditional field of civil engineering. Still, the adequate diffusion of research results and wisdom derived from practical experience are crucial to both theoretical underpinnings and technical applications.The papers forming this book are devoted to intersection control and safety and have been selected bearing in mind the criteria stated above. That is, these papers provide both scholarly contribution as well as vision for application.As a general rule, about one-third of all highway crashes happen at intersections. This rule holds for many different countries. Intersection crashes also represent a significant portion of serious injury crashes, and by right are receiving considerable attention from researchers and practitioners alike. This book is therefore devoted to relevant safety aspects of road intersections and innovative features in design and operations that may address the intersection crash problem. The thirteen papers are more or less equally devoted to roundabouts and signals. These papers cover many of the most recent and emerging issues related to intersection control and safety. Topics range from design details to driver perception, from pedestrians behaviour to signal timing, and from capacity models to red-light running. The book will be useful for those wishing to expand their knowledge of this ever important subject area.
Download or read book Guide to Pedestrian Analysis written by Paul Ryus and published by . This book was released on 2022 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: Roadway designs and signal phasing that address the safety of all road users are being implemented in many cities around the country. As part of this, accurate methods for estimating pedestrian volumes are needed to quantify exposure and, in turn, evaluate the benefits of pedestrian safety measures. The TRB National Cooperative Highway Research Program's NCHRP Research Report 992: Guide to Pedestrian Analysis presents a state-of-the-art guide to conducting pedestrian traffic analysis on the basis of volume, safety, operations, and quality of service. In addition to the guide, the research provides new evaluation methods for use with the Highway Capacity Manual. Supplemental to the report is NCHRP Web-Only Document 312: Enhancing Pedestrian Volume Estimation and Developing HCM Pedestrian Methodologies for Safe and Sustainable Communities, a Video, a Project Overview, a Guide to Pedestrian Volume Counting, a Pedestrian Operations Analysis, a Pedestrian Quality of Service Analysis, a Pedestrian Safety Analysis, and an Implementation Plan.
Download or read book Evaluation of Marked and Unmarked Crosswalks at Intersections in California written by and published by . This book was released on 1994 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development of Crash Modification Factors for Uncontrolled Pedestrian Crossing Treatments written by Charles V. Zegeer and published by . This book was released on 2017 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: "TRB's National Cooperative Research Program (NCHRP) Report 841: Development of Crash Modification Factors for Uncontrolled Pedestrian Crossing Treatments quantifies the safety benefits of four types of pedestrian crossing treatments—rectangular rapid flashing beacons, pedestrian hybrid beacons, pedestrian refuge islands, and advanced YIELD or STOP markings and signs—and presents a crash modification factor (CMF) for each treatment type. This information, which is suitable for inclusion in the American Association of State Highway and Transportation Officials (AASHTO) Highway Safety Manual, the U.S. Federal Highway Administration's (FHWA's) CMF Clearinghouse, and other guidance, will be valuable to transportation agencies in choosing the appropriate crossing treatment for uncontrolled pedestrian crossings." - Publisher description
Download or read book Selection of Pedestrian Crossing Treatments at Controlled and Uncontrolled written by Suleiman Ashur and published by . This book was released on 2015-09-01 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Designers and traffic engineers have to make decisions on selecting a pedestrian treatment whenever designing a new pedestrian facility or retrofitting an existing one. The goal is either to provide or improve pedestrian safety at pedestrian crossing facilities, including controlled locations of signalized intersections and approaches with stop and yield signs, and uncontrolled locations of intersections and midblock sites. Currently, the Indiana Department of Transportation (INDOT) has limited resources on pedestrian treatment selection that does not take into consideration key elements such as number of lanes and the existence of a raised median. Therefore, there is a need to find a more detailed and comprehensive approach to providing guidelines when deciding on a pedestrian crossing treatment. The approach has to be practical and can be easily utilized by traffic and design engineers, planners, and other constituents.Most of the State DOTs developed their guidelines on pedestrian crossing treatment based on several resources. However, the 2002 FHWA-RD-01-075 study titled "Safety Effects of Marked Vs. Unmarked Crosswalks at Uncontrolled Locations" was adopted by several states either "as is," with some modifications, or referenced as a source on pedestrian crosswalk selection. State DOTs mainly use standards and guidelines from the National MUTCD, Part 3 and NCHRP Report 672 for roundabout crosswalk markings. In general, there are no clear warrants for grade separation treatment. In addition, there is a need for a national and comprehensive study to develop practical guidelines on pedestrian crossing treatments, especially on multilane roadways, complex intersections, and when the speed is 45 mph or more.This study proposed guidelines on crosswalk markings and treatment selection of pedestrian crossings based on a synthesis of federal and state reports, guidelines, design manuals, polices, and other relevant publications. It is recommended to adopt these guidelines as a reference for pedestrian treatment selection at INDOT.
Download or read book A Novel Approach to Investigate Pedestrian Safety in Non signalized Crosswalk Environments and Related Treatments Using Trajectory Data written by Ting Fu and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "The high frequency of pedestrian crash injuries and the great possibility of fatal consequences have made pedestrian safety a great focus in road safety research. Pedestrian safety becomes even more of a problem at non-signalized locations when compared to signalized crosswalk locations, due to the absence of traffic lights controlling the traffic. This dissertation aims to improve data collection methods for pedestrian safety analysis and to develop a methodological framework to investigate pedestrian safety at non-signalized crosswalk locations.The work started with reviewing methodologies and data collection methods in previous studies. Methods used in past studies were classified into five different approaches: the crash data approach and four surrogate safety approaches (the traffic data approach, the conflict event approach, the behavioral analysis approach, and the perception analysis approach). Issues in the methodologies applied, and data used were summarized. To overcome the limitations that regular visible spectrum cameras have encountered during the data collection process, the thermal camera was introduced and its performance in road user detection, classification, and speed measurement was validated through its comparison to the use of the regular camera. Results showed an evidently better performance from thermal camera for low visibility and shadow conditions. For speed measurements, the thermal camera was consistently more accurate than the regular camera at daytime and nighttime. A study was conducted to investigate pedestrian safety at crosswalks at nighttime using existing measures. Although, the methodology performed well, further limitations of using safety measure methods were discovered upon the completion of the study. A novel framework which looks at the interaction between the pedestrian and the vehicle, and their behavior during the interactions, was proposed and illustrated through a case study. The framework was further tested through a study to compare the performance of three main non-signalized crosswalk types (uncontrolled, marked, and stop sign controlled crosswalks) on pedestrian safety in Montreal. Stop sign controlled crosswalks had the best performance in protecting pedestrians while uncontrolled crosswalks performed the worst. To explore the extensive applications of the framework, the investigation of cyclist-pedestrian interactions was introduced as it has been a major but underestimated safety problem. Marked crosswalks alone fail to protect pedestrians from passing cyclists. Besides, pedestrian safety at crossings on cycling facilities with downhill grades was found to be a great issue. The dissertation will: provide a comprehensive literature review that acts as a practical reference to investigating pedestrian safety at non-signalized crosswalk locations; introduce a promising alternative, the thermal camera, to overcome the limitations of using the visible camera for automated traffic data collection; propose a new framework that describes pedestrian-vehicle interactions more precisely, compared to previous studies. This framework is promising for different purposes in road safety on various topics, such as the analysis of interactions between different types of road users, road user interaction simulation, safety treatments validations, and the performance evaluations of autonomous vehicles. " --
Download or read book Empirically based Performance Assessment and Simulation of Pedestrian Behavior at Unsignalized Crossings written by Bastian J. Schroeder and published by . This book was released on 2014 with total page 179 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this research was to provide an improved understanding of pedestrian-vehicle interaction at mid-block pedestrian crossings and develop methods that can be used in traffic operational analysis and microsimulation packages. Models describing driver yielding and pedestrian gap acceptance behavior were developed from field data collected at 27 mid-block pedestrian crossings in three states (Alabama, Florida, and North Carolina), encompassing two different types of land use: university campuses and downtown areas. The project included an in-vehicle driver behavior study with 15 drivers. This part of the data collection was performed in Florida and the results were used to develop nine simulation components describing various aspects of pedestrian-vehicle interaction. Specific outcomes for this research include: (a) a standalone model of pedestrian gap acceptance behavior at unsignalized crossings, (b) a driver yielding behavioral model, (c) models describing vehicle dynamics and driver behavior in advance of the crosswalk, (d) prototype algorithms incorporated and tested in a micro simulator, and (e) educational modules for dissemination of the research results. Key deliverables include the prototype algorithms implemented in simulation, a final report summarizing the research and findings, and educational modules on the research results that can be incorporated into university curricula, or serve as material for standalone professional development courses.
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 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.
Download or read book Roadway Lighting Design Guide written by American Association of State Highway and Transportation Officials and published by AASHTO. This book was released on 2005 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: This guide replaces the 1984 publication entitled An Informational Guide for Roadway Lighting. It has been revised and brought up to date to reflect current practices in roadway lighting. The guide provides a general overview of lighting systems from the point of view of the transportation departments and recommends minimum levels of quality. The guide incorporates the illuminance and luminance design methods, but does not include the small target visibility (STV) method.
