Download or read book Traffic Signal Timing Manual written by U.s. Department of Transportation and published by CreateSpace. This book was released on 2015-02-20 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report serves as a comprehensive guide to traffic signal timing and documents the tasks completed in association with its development. The focus of this document is on traffic signal control principles, practices, and procedures. It describes the relationship between traffic signal timing and transportation policy and addresses maintenance and operations of traffic signals. It represents a synthesis of traffic signal timing concepts and their application and focuses on the use of detection, related timing parameters, and resulting effects to users at the intersection. It discusses advanced topics briefly to raise awareness related to their use and application. The purpose of the Signal Timing Manual is to provide direction and guidance to managers, supervisors, and practitioners based on sound practice to proactively and comprehensively improve signal timing. The outcome of properly training staff and proactively operating and maintaining traffic signals is signal timing that reduces congestion and fuel consumption ultimately improving our quality of life and the air we breathe. This manual provides an easy-to-use concise, practical and modular guide on signal timing. The elements of signal timing from policy and funding considerations to timing plan development, assessment, and maintenance are covered in the manual. The manual is the culmination of research into practices across North America and serves as a reference for a range of practitioners, from those involved in the day to day management, operation and maintenance of traffic signals to those that plan, design, operate and maintain these systems.

Download or read book Wrong Lanes Have Right Turns written by Michael Phillips and published by WaterBrook. This book was released on 2022-01-25 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt: The unforgettable true story of one man’s escape from the school-to-prison pipeline, how he reinvented himself as a pastor and education reform advocate, and what his journey can teach us about turning the collateral damage in the lives of our youth into hope. “A heart-wrenching and triumphant story that will change lives.”—Bishop T. D. Jakes Michael Phillips would never become anything. At least, that’s what he was told. It seemed like everyone was waiting for him to just fall through the cracks. After losing his father, suffering a life-altering car accident, and losing his college scholarship, Michael turned to selling drugs to make ends meet. But when his house was raided, he was arrested and thrown into a living nightmare. When it looked like he would be sentenced to spend years behind bars, the judge gave him a choice—go to a special college program for adjudicated youth or face the possibility of a thirty-year prison sentence. It wasn’t hard to pick. From that choice, a mission was born—to help change the system that shuffles so many young Black men like Michael straight from school to prison. Today, Michael is the pastor of a thriving church, a local leader in Baltimore, and a member of the Maryland State Board of Education. He discovered that education was the path to becoming who he was created to be. Armed with research, statistics, and his powerful story, Michael tackles the embedded privilege of the education system and introduces ideas for change that could level the playing field and reduce negative impacts on vulnerable youth. He explores ways in which the readers can help advocate and provide resources for students, and points us to the one thing anyone can start doing, no matter who we are or what our role is: speak into young kids’ lives. Tell them of their inherent worth and purpose. In this inspiring, thought-provoking, and energizing call to action, Michael’s practical steps provide a way forward to anyone wanting to help create space for collateral hope in the lives of for young people around them.

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 Triple Left turn Lanes at Signalized Intersections written by and published by . This book was released on 2002 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Left turn Accommodations at Unsignalized Intersections written by Kay Fitzpatrick and published by Transportation Research Board. This book was released on 2013 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: "TRB's National Cooperative Highway Research Program (NCHRP) Report 745: Left-Turn Accommodations at Unsignalized Intersections presents guidance for the selection and design of left-turn accommodations at unsignalized intersections. The report includes 11 case studies of typical situations that illustrate the use of the guidance." -- publisher's description.

Download or read book Development of Warrants for Installation of Dual Right turn Lanes at Signalized Intersections written by Yi Qi and published by . This book was released on 2012 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: Right-turn lanes provide space for the deceleration and storage of right-turn vehicles, and separate turning vehicles from through movements. Dual right-turn lanes are increasingly used at urban intersections primarily for two reasons: (1) to accommodate high right-turn demands and avoid turn-pocket overflows, and/or (2) to prevent right-turn vehicles that exit from a nearby upstream freeway off-ramp (on the left of the roadway) from abruptly changing too many lanes toward the right-turn lane at the intersection. In addition, a number of other factors may affect the decisions on the installation of dual right-turn lanes. However, warrants for dual right lane installation are almost non-existent, leaving traffic engineers to rely on engineering judgment. This research aims to develop warrants for installation of dual right-turn lanes at signalized intersections. Both the operational and safety benefits/costs were analyzed by surveying traffic engineers and by conducting traffic simulation-based analysis. Microscopic traffic simulation model, VISSIM, was used to quantify the operation benefits and Surrogate Safety Assessment Model (SSAM) developed by Siemens was used to analyze the safety gains due to installation of dual right-turn lanes.

Download or read book Access Management Manual written by Kristine Williams and published by . This book was released on 2014 with total page 529 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Since the publication of the first edition of the Access Management Manual, the context for transportation planning and roadway design in the United States has been transformed. Transportation agencies and local governments are under growing pressure to integrate land use and transportation policy and achieve a more sustainable, energy-efficient transportation system. This second edition of the manual responds to these developments by addressing access management comprehensively, as a critical part of network and land use planning. The content is interdisciplinary, with guidance pertinent to various levels of government as well as to pedestrians, bicyclists, and motorized vehicles, including trucks and buses, and is strongly grounded in decades of research, engineering science, and professional experience. Greater emphasis is placed on appropriate location of access, and guidance is refined to provide appropriate consideration of context and community issues. Substantial updates aid state and local agencies in managing access to corridor development effectively. Specific guidance on network and circulation planning and modal considerations is included, as well as guidance on effective site access and circulation design. A chapter on corridor management reinforces these concepts with a framework for application of access management in different contexts, along with appropriate strategies for each context. There are also new chapters on network planning, regional access management policies and programs, interchange area access management, auxiliary lane warrants and design, and right-of-way and access control. The manual concludes with an extensive menu of access management techniques and information on their application"--Provided by publisher.

Download or read book Guidelines for Right turn Lanes on Urban Highways written by Patrick T. McCoy and published by . This book was released on 1993 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Policy on Geometric Design of Highways and Streets 2011 written by American Association of State Highway and Transportation Officials and published by AASHTO. This book was released on 2011 with total page 907 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 Difference Equations Second Edition written by Ronald E. Mickens and published by CRC Press. This book was released on 2022-02-17 with total page 461 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, the study of difference equations has acquired a new significance, due in large part to their use in the formulation and analysis of discrete-time systems, the numerical integration of differential equations by finite-difference schemes, and the study of deterministic chaos. The second edition of Difference Equations: Theory and Applications provides a thorough listing of all major theorems along with proofs. The text treats the case of first-order difference equations in detail, using both analytical and geometrical methods. Both ordinary and partial difference equations are considered, along with a variety of special nonlinear forms for which exact solutions can be determined. Numerous worked examples and problems allow readers to fully understand the material in the text. They also give possible generalization of the theorems and application models. The text's expanded coverage of application helps readers appreciate the benefits of using difference equations in the modeling and analysis of "realistic" problems from a broad range of fields. The second edition presents, analyzes, and discusses a large number of applications from the mathematical, biological, physical, and social sciences. Discussions on perturbation methods and difference equation models of differential equation models of differential equations represent contributions by the author to the research literature. Reference to original literature show how the elementary models of the book can be extended to more realistic situations. Difference Equations, Second Edition gives readers a background in discrete mathematics that many workers in science-oriented industries need as part of their general scientific knowledge. With its minimal mathematical background requirements of general algebra and calculus, this unique volume will be used extensively by students and professional in science and technology, in areas such as applied mathematics, control theory, population science, economics, and electronic circuits, especially discrete signal processing.

Download or read book And a Bottle of Rum written by Wayne Curtis and published by Broadway Books. This book was released on 2009-02-04 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: Now revised, updated, and with new recipes, And a Bottle of Rum tells the raucously entertaining story of this most American of liquors From the grog sailors drank on the high seas in the 1700s to the mojitos of Havana bar hoppers, spirits and cocktail columnist Wayne Curtis offers a history of rum and the Americas alike, revealing that the homely spirit once distilled from the industrial waste of the booming sugar trade has managed to infiltrate every stratum of New World society. Curtis takes us from the taverns of the American colonies, where rum delivered both a cheap wallop and cash for the Revolution; to the plundering pirate ships off the coast of Central America; to the watering holes of pre-Castro Cuba; and to the kitsch-laden tiki bars of 1950s America. Here are sugar barons and their armies conquering the Caribbean, Paul Revere stopping for a nip during his famous ride, Prohibitionists marching against "demon rum," Hemingway fattening his liver with Havana daiquiris, and today's bartenders reviving old favorites like Planter's Punch. In an age of microbrewed beer and single-malt whiskeys, rum--once the swill of the common man--has found its way into the tasting rooms of the most discriminating drinkers. Complete with cocktail recipes for would-be epicurean time-travelers, this is history at its most intoxicating.

Download or read book Development of Left turn Lane Guidelines for Signalized and Unsignalized Intersections written by and published by . This book was released on 2004 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is generally accepted that the level of service (LOS) at intersections significantly affects the overall LOS of the road system. It is also known that the LOS at an intersection can be adversely affected by frequently allowing left-turning vehicles to block through traffic. In addition, crash rates tend to be higher at intersections than on through sections of a road. The separation of left-turning vehicles from through traffic is therefore an important condition for the safe and effective operation of intersections. Existing guidelines for installing left-turn lanes have several limitations. They are mainly based on the traffic volumes at the intersection, and they use deterministic models with fixed gap acceptance and/or left-turn maneuver times. In addition, the guidelines for left-turn lanes for unsignalized intersections and signalized intersections must be specific for the type of intersection. In this study, new left-turn guidelines for both unsignalized and signalized intersections were developed on the basis of well-validated event-based simulation programs. Guidelines for unsignalized intersections were based on the percentage of left turns blocking through vehicles, whereas the guidelines for signalized intersections were developed using a minimum left-turn volume of either 85% left-turn capacity or LOS E delay (55 seconds/vehicle). In addition to the general guidelines, a prioritization tool that can be used to prioritize candidate intersections was developed. The prioritization tool accounts for both operational and safety aspects.

Download or read book A Study of Dedicated Dual Right Turns in the Sacramento Area written by Pavel Zakusilo and published by . This book was released on 2014 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of the study is to analyze the operation of dual right-turn lanes in the Sacramento area. Right-turn turning movement counts, along with right-turn lane length and downstream condition data, were collected at a dozen intersections in the city and county of Sacramento. The utilization of each of the right-turn lanes was analyzed in relationship to the overall right-turn volume, second right-turn lane length, and the downstream conditions to determine the effects of these three characteristics on the utilization of each of the right-turn lanes. The results showed that on average the first right-turn lane was utilized only by 35% of the drivers. Consequently, the second right-turn lane was used about 65% of the time. The overall right-turn volume was found to be a major factor affecting the utilization of the individual lanes; whereas, the length of the second right-turn lane, and the distance to the nearest intersection downstream had no significant relationship to the utilization of individual right-turn lanes.

Download or read book Guidelines for Free Right turn Lanes at Unsignalized Intersections on Rural Two lane Highways written by and published by . This book was released on 1995 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: Free right-turn (FRT) lanes are turning roadways at intersections that provide for free-flowing right-turn movements. The objective of the research presented in this report was to develop guidelines for FRT lanes at unsignalized intersections on rural two-lane highways in Nebraska. The development of the guidelines was based on a benefit-cost analysis, which determined the right-turn volumes required to justify the construction and maintenance of FRT lanes at these locations. The research involved the evaluation of the operational and safety effects of FRT lanes. The operational effects of FRT lanes were analyzed using kinematic and traffic flow models. Accident data analysis, field studies, and computer simulation of truck dynamics were used to evaluate the safety effects of FRT lanes. The results of these analyses were also used to determine acceptable design criteria for FRT lanes. A survey of other state agencies was conducted to identify any existing guidelines, design criteria, and experience that might be useful in developing the guidelines and evaluating the design criteria. Also, the concerns of citizens opposed to the removal of FRT lanes were examined in an effort to develop guidelines that might effectively address these concerns. The results of the research indicate that design-year right-turn AADTs ranging from 440 to 825 vehicles per day, depending on the percentage of trucks, are required to warrant a FRT lane at an unsignalized intersection of rural two-lane highways. A design speed of 40 mph was found to be a realistic design speed and the most cost-effective design speed for FRT lanes. However, design speeds up to 55 mph do not significantly reduce the cost effectiveness of a FRT lane. The AASHTO design criteria for curves on open highways were found to be appropriate for designing the curvature of FRT lanes. The AASHTO criteria for minimum-radii intersection curves were not acceptable. Also, acceleration lanes were found to improve the safety of the merging operations associated with FRT lanes. The results of the accident data analysis do not support the perceptions of concerned citizens regarding the safety benefits of FRT lanes. FRT lanes were not found to affect the frequency, severity, or types of accidents that occur at unsignalized intersections on rural two-lane highways. Thus, FRT lanes should not be perceived, or promoted, as traffic safety improvements. The benefits of FRT lanes are limited to improving the efficiency of right-turn movements.

Download or read book Capacity and Operational Effects of Midblock Left turn Lanes written by James A. Bonneson and published by Transportation Research Board. This book was released on 1997 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this research project was to develop a methodology for evaluating alternative midblock left-turn treatments on urban and suburban arterials. The methodology had to be applicable to three common midblock left-turn treatments: the raised-curb median, the flush median with two-way left-turn lane (TWLTL) delineation, and the undivided cross section. The methodology developed for this research focuses on the evaluation of midblock street segments on urban and suburban arterials. The basis for NCHRP Report 395.