...TRAFFIC SIGNAL SYSTEMS 1 Combating Congestion Utilizing Adaptive Traffic Signal Systems Gregory Blazina University of St Francis MBAD 656 – Transportation Management & Economics Donald Maier PH.D. August 10, 2007 TRAFFIC SIGNAL SYSTEMS 2 Abstract Traffic congestion is an inescapable problem in large and growing metropolitan areas across the country. With 88% of America’s daily commuters using private vehicles, eliminating traffic congestion is practically impossible. The challenge then becomes finding the best methods to manage congestion as to minimize its impact on commuters, the environment, and the economy. The field of transportation engineering continues to grow and expand with an increasing use of advanced technologies to reduce congestion within our nation’s roadways. One set of technologies, which has evolved over the past 30 years and shows excellent potential for improving traffic conditions in urban areas is advanced traffic signal systems. These systems are the focus of this paper. TRAFFIC SIGNAL SYSTEMS 3 Congestion has traditionally been labeled as a problem to be solved. Between 1980 and 1999, vehicle miles of travel on U.S. roadways grew by 76 percent, while lane miles increased by only 3 percent. Average daily vehicle volumes in urban areas rose by 43...
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... http://jtlu.org . 6 . 1 [2013] pp. 7–24 http://dx.doi.org/10.5198/jtlu.v1.425 Linking urban transport and land use in developing countries Robert Cervero University of California, Berkeley a e mobility challenges of the developing world are considerably different than those in wealthier, advanced countries, and so are the challenges of coordinating transportation and land use. Rapid population growth, poverty and income disparities, overcrowded urban cores, poorly designed road networks, spatial mismatches between housing and jobs, deteriorating environmental conditions, and economic losses from extreme traffic by congestion are among the more vexing challenges faced by developing cities that could be assuaged through improved coordination of transportation and urban development. is is underscored by examples reviewed in this paper from South Asia, Southeast Asia, China, India, Africa, and South America. It is concluded that whatever is done to improve transportation and land-use integration must be pro-poor. e cardinal features of integrated and sustainable transport and urbanism everywhere—accessible urban activities and safe, attractive walking and cycling environs—are particularly vital to the welfare and prosperity of urbanites in the world’s poorest countries. Abstract: Keywords: Urban transportation; land use; Developing cities; Air quality; Poverty 1 The challenges of rapid growth in developing cities ...
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...Environment for Development Discussion Paper Series January 2014 EfD DP 14-01 A Review of Beijing’s Vehicle Lottery Short-Term Effects on Vehicle Growth, Congestion, and Fuel Consumption J un Y an g, Yi ng Li u, Pi ng Q i n, an d An tu ng A. Li u Environment for Development Centers Central America Research Program in Economics and Environment for Development in Central America Tropical Agricultural Research and Higher Education Center (CATIE) Email: centralamerica@efdinitiative.org Chile Research Nucleus on Environmental and Natural Resource Economics (NENRE) Universidad de Concepción Email: chile@efdinitiative.org China Environmental Economics Program in China (EEPC) Peking University Email: china@efdinitiative.org Ethiopia Environmental Economics Policy Forum for Ethiopia (EEPFE) Ethiopian Development Research Institute (EDRI/AAU) Email: ethiopia@efdinitiative.org Kenya Environment for Development Kenya University of Nairobi with Kenya Institute for Public Policy Research and Analysis (KIPPRA) Email: kenya@efdinitiative.org South Africa Environmental Economics Policy Research Unit (EPRU) University of Cape Town Email: southafrica@efdinitiative.org Tanzania Environment for Development Tanzania University of Dar es Salaam Email: tanzania@efdinitiative.org Sweden Environmental Economics Unit University of Gothenburg Email: info@efdinitiative.org USA (Washington, DC) Resources for the Future (RFF) Email: usa@efdintiative.org The Environment...
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...PHOTOGRAPHY. The word photography comes from two ancient Greek words: photo, for "light," and graph, for "drawing." "Drawing with light" is a way of describing photography. When a photograph is made, light or some other form of radiant energy, such as X rays, is used to record a picture of an object or scene on a light-sensitive surface. Early photographs were called sun pictures, because sunlight itself was used to create the image. Mankind has been a maker of images at least since the cave paintings of some 20,000 years ago. With the invention of photography, a realistic image that would have taken a skilled artist hours or even days to draw could be recorded in exact detail within a fraction of a second. Today, photography has become a powerful means of communication and a mode of visual expression that touches human life in many ways. For example, photography has become popular as a means of crystallizing memories. Most of the billions of photographs taken today are snapshots--casual records to document personal events such as vacations, birthdays, and weddings. Photographs are used extensively by newspapers, magazines, books, and television to convey information and advertise products and services. Practical applications of photography are found in nearly every human endeavor from astronomy to medical diagnosis to industrial quality control. Photography extends human vision into the realm of objects that are invisible because they are too small or too distant...
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...Freeway capacity, saturation flow and the car following behavioural algorithm of the VISSIM microsimulation software Freeway capacity, saturation flow and the car following behavioural algorithm of the VISSIM microsimulation software Julian Laufer Maunsell Australia, Sydney, NSW, Australia 1 Introduction Freeways represent the best example of an unconstrained traffic flow system with high speed operations, limited access and egress opportunities and few factors to inhibit traffic flow. This road type can typically achieve the highest throughput of traffic per hour per lane across most metropolitan networks. As most regular limitations to free flow traffic conditions are removed from freeways, the achievable throughput is subject to regulatory constraints such as speeds and societal limitations such as headways between vehicles. Historical traffic volumes indicate that hourly throughputs per lane are generally increasing over time. This reflects a reduction in headways between vehicles as motorists’ acceptable and safe gaps between vehicles become smaller. As a direct consequence, the capacity of freeways has been observed to increase over time. The most recent edition of the US Highway Capacity Manual indicates a ceiling value significantly higher than that applied fifteen years prior. This paper has set out to identify the changing values of capacities over time as applied to freeway traffic conditions. The paper examines capacity in the context of observed volumes...
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...Agarwal Growth in number of vehicles The increased travel demand has resulted in rapid growth in the number of motor vehicles in the cities. In the six major metropolises of India, growth in motor vehicles has outpaced population growth. On an average, while the population in India’s six major metropolises increased 1.89 times during 1981 to 2001, the number of registered vehicles went up 7.75 times during the same period (Figure 6.2). Thus the growth of motor vehicles was almost four times faster than the growth of population. Cities without good mass transit systems, like Delhi, Chennai, Hyderabad and Bangalore, showed a higher 60 50 40 30 20 10 Congestion is an outcome of twin factors, (a) growth in number of vehicles on road, (b) limitations to expansion of road space. Views expressed in the chapter are of the author. Cy cle s 2wh ee ler s IP T C Ca rs Sl ow t Fa s ns po B lic Tr a Congestion Pu b ISSUES IN URBAN TRANSPORT IN INDIA IP T rt 0 W alk T he burgeoning urban population of India is engaging in a variety of economic activities in rapidly expanding cities, which are, therefore, encountering fast escalations in urban travel demand. A variety of transport modes, such as, walking, cycling, two-wheelers, para-transit, public transport, cars, etc. are used to meet these travel needs. Travel demand is determined by a number of factors, the primary one being the size of the population. Other determinants include: average number of journeys performed by a resident...
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...PHYSIC AL CONSTANTS CONSTANT Speed of light Elementary charge Electron mass Proton mass Gravitational constant Permeability constant Permittivity constant Boltzmann’s constant Universal gas constant Stefan–Boltzmann constant Planck’s constant Avogadro’s number Bohr radius SYMBOL c e me mp G m0 P0 k R s h 15 2p"2 NA a0 THREE-FIGURE VALUE 3.003108 m/s 1.60310219 C 9.11310231 kg 1.67310227 kg 6.67310211 N # m2/kg 2 1.2631026 N/A2 1H/m2 8.85310212 C 2/N # m2 1F/m2 1.38310223 J/K 8.31 J/K # mol 5.6731028 W/m2 # K4 6.63310234 J # s 6.0231023 mol21 5.29310211 m BEST KNOWN VALUE* 299 792 458 m/s (exact) 1.602 176 4871402 310219 C 9.109 382 151452 310231 kg 1.672 621 6371832 310227 kg 6.674 281672 310211 N # m2/kg 2 4p31027 (exact) 1/m0c2 (exact) 1.380 65041242 310223 J/K 8.314 4721152 J/K # mol 5.670 4001402 31028 W/m2 # K4 6.626 068 961332 310234 J # s 6.022 141 791302 31023 mol21 5.291 772 08591362 310211 m *Parentheses indicate uncertainties in last decimal places. Source: U.S. National Institute of Standards and Technology, 2007 values SI PREFIXES POWER 1024 1021 1018 1015 1012 109 106 103 102 101 100 1021 1022 1023 1026 1029 10212 10215 10218 10221 10224 THE GREEK ALPHABET PREFIX yotta zetta exa peta tera giga mega kilo hecto deca — deci centi milli micro nano pico femto atto zepto yocto SYMBOL Y Z E P T G M k h da — d c m μ n p f a z y Alpha ...
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...Guide to Meteorological Instruments and Methods of Observation WMO-No. 8 Guide to Meteorological Instruments and Methods of Observation WMO-No. 8 Seventh edition 2008 WMO-No. 8 © World Meteorological Organization, 2008 The right of publication in print, electronic and any other form and in any language is reserved by WMO. Short extracts from WMO publications may be reproduced without authorization, provided that the complete source is clearly indicated. Editorial correspondence and requests to publish, reproduce or translate this publication in part or in whole should be addressed to: Chairperson, Publications Board World Meteorological Organization (WMO) 7 bis, avenue de la Paix P.O. Box No. 2300 CH-1211 Geneva 2, Switzerland ISBN 978-92-63-10008-5 NOTE The designations employed in WMO publications and the presentation of material in this publication do not imply the expression of any opinion whatsoever on the part of the Secretariat of WMO concerning the legal status of any country, territory, city or area, or of its authorities, or concerning the delimitation of its frontiers or boundaries. Opinions expressed in WMO publications are those of the authors and do not necessarily reflect those of WMO. The mention of specific companies or products does not imply that they are endorsed or recommended by WMO in preference to others of a similar nature which are not mentioned or advertised. Tel.: +41 (0) 22 730 84 03 Fax: +41 (0) 22 730 80 40 E-mail: publications@wmo...
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...PERFORMANCE AUDIT REPORT ON THE MANAGEMENT OF TRAFFIC INSPECTIONS AND SPEED LIMITS THE UNITED REPUBLIC OF TANZANIA NATIONAL AUDIT OFFICE A PERFORMANCE AUDIT REPORT ON THE MANAGEMENT OF TRAFFIC INSPECTIONS AND SPEED LIMITS IN TANZANIA THE MINISTRY OF HOME AFFAIRS – TANZANIA POLICE FORCE AND THE MINISTRY OF WORKS A REPORT OF THE CONTROLLER AND AUDITOR GENERAL OF THE UNITED REPUBLIC OF TANZANIA i PERFORMANCE AUDIT REPORT ON THE MANAGEMENT OF TRAFFIC INSPECTIONS AND SPEED LIMITS THE UNITED REPUBLIC OF TANZANIA National Audit Office of Tanzania Vision To be a centre of excellence in public sector auditing Mission To provide efficient audit services in order to enhance accountablity and value for money in the collection and use public resources Our core values Objectivity Excellence Integrity Peoples Focus Innovation ii PERFORMANCE AUDIT REPORT ON THE MANAGEMENT OF TRAFFIC INSPECTIONS AND SPEED LIMITS Table of Contents Table of Contents........................................................................................iii List of Tables and Figures...........................................................................v Preface.........................................................................................................vii Terminology used in this report.................................................................ix Map of Tanzania showing regions covered in this audit........................x Acronyms and Abbreviations...
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...Introductory Physics I Elementary Mechanics by Robert G. Brown Duke University Physics Department Durham, NC 27708-0305 rgb@phy.duke.edu Copyright Notice Copyright Robert G. Brown 1993, 2007, 2013 Notice This physics textbook is designed to support my personal teaching activities at Duke University, in particular teaching its Physics 141/142, 151/152, or 161/162 series (Introductory Physics for life science majors, engineers, or potential physics majors, respectively). It is freely available in its entirety in a downloadable PDF form or to be read online at: http://www.phy.duke.edu/∼rgb/Class/intro physics 1.php It is also available in an inexpensive (really!) print version via Lulu press here: http://www.lulu.com/shop/product-21186588.html where readers/users can voluntarily help support or reward the author by purchasing either this paper copy or one of the even more inexpensive electronic copies. By making the book available in these various media at a cost ranging from free to cheap, I enable the text can be used by students all over the world where each student can pay (or not) according to their means. Nevertheless, I am hoping that students who truly find this work useful will purchase a copy through Lulu or a bookseller (when the latter option becomes available), if only to help subsidize me while I continue to write inexpensive textbooks in physics or other subjects. This textbook is organized for ease of presentation and ease of learning. In particular, they are...
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...Summarizing those perspectives and recognizing the influence of a new economy, which can be characterized as informational, global and networked (Castells, 2000: 27), global cities can be seen as the urban nodes where globalization materializes so that they are (1) highly concentrated command points in the organization of the world economy; (2) key locations for finance and specialized service firms; (3) sites of production of innovation; (4) markets for the products and innovations produced (Sassen, 2001: 3 and 4). Taylor (2004) has argued that these perspectives involve understanding just the attributes of cities and suggests that the key roles of global city are shaped by the relationships and connections they have with the rest of the world. He illustrates a hierarchy of cities reflecting such relationships by analyzing the location of advanced producer service firms and produces. Olds and Yeung (2004) provide a comprehensive coverage of other literature in global city research, showing it has followed three...
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...How to go to your page This eBook set contains two volumes. The main content pages are contiguously numbered: use the Table of Contents to find those page numbers. The front matter pages and indices are labeled with the Volume number and page separated by a colon. For example, to go to page vi of Volume 1, type Vol1:vi in the “page #” box at the top of the screen and click “Go”. To go to page vi of Volume 2, type Vol2:vi in the "page #" box… and so forth. Encyclopedia of Human Body Systems This page intentionally left blank Encyclopedia of Human Body Systems VOLUME 1 Julie McDowell, Editor Copyright 2010 by ABC-CLIO, LLC All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, except for the inclusion of brief quotations in a review, without prior permission in writing from the publisher. Library of Congress Cataloging-in-Publication Data McDowell, Julie. Encyclopedia of human body systems / Julie McDowell. p. cm. Includes bibliographical references and index. ISBN 978–0–313–39175–0 (hard copy : alk. paper) 1. Human physiology—Encyclopedias. I. Title. QP11.M33 2011 612.003—dc22 2010021682 ISBN: 978–0–313–39175–0 EISBN: 978–0–313–39176–7 14 13 12 11 10 1 2 3 4 5 This book is also available on the World Wide Web as an eBook. Visit www.abc-clio.com for details. Greenwood An Imprint of ABC-CLIO, LLC ABC-CLIO, LLC...
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...INSTRUCTOR GUIDE Human Anatomy & Physiology Laboratory Manual MAIN VERSION, Eighth Edition Update CAT VERSION, Ninth Edition Update FETAL PIG VERSION, Ninth Edition Update ELAINE N. MARIEB, R.N., Ph.D Holyoke Community College SUSAN T. BAXLEY, M.A. Troy University, Montgomery Campus NANCY G. KINCAID, Ph.D Troy University, Montgomery Campus PhysioEx™ Exercises authored by Peter Z. Zao, North Idaho College Timothy Stabler, Indiana University Northwest Lori Smith, American River College Greta Peterson, Middlesex Community College Andrew Lokuta, University of Wisconsin—Madison San Francisco • Boston • New York Cape Town • Hong Kong • London • Madrid • Mexico City Montreal • Munich • Paris • Singapore • Sydney • Tokyo • Toronto Editor-in-Chief: Serina Beauparlant Project Editor: Sabrina Larson PhysioEx Project Editor: Erik Fortier Editorial Assistant: Nicole Graziano Managing Editor: Wendy Earl Production Editor: Leslie Austin Composition: Cecelia G. Morales Cover Design: Riezebos Holzbaur Design Group Senior Manufacturing Buyer: Stacey Weinberger Marketing Manager: Gordon Lee Copyright © 2009 Pearson Education, Inc., publishing as Pearson Benjamin Cummings, 1301 Sansome St., San Francisco, CA 94111. All rights reserved. Manufactured in the United States of America. This publication is protected by Copyright and permission should be obtained from the publisher prior to any prohibited reproduction, storage in a retrieval system, or transmission in any form or by any means...
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...Digital Image Processing Second Edition Rafael C. Gonzalez University of Tennessee Richard E. Woods MedData Interactive Prentice Hall Upper Saddle River, New Jersey 07458 Library of Congress Cataloging-in-Pubblication Data Gonzalez, Rafael C. Digital Image Processing / Richard E. Woods p. cm. Includes bibliographical references ISBN 0-201-18075-8 1. Digital Imaging. 2. Digital Techniques. I. Title. TA1632.G66 621.3—dc21 2001 2001035846 CIP Vice-President and Editorial Director, ECS: Marcia J. Horton Publisher: Tom Robbins Associate Editor: Alice Dworkin Editorial Assistant: Jody McDonnell Vice President and Director of Production and Manufacturing, ESM: David W. Riccardi Executive Managing Editor: Vince O’Brien Managing Editor: David A. George Production Editor: Rose Kernan Composition: Prepare, Inc. Director of Creative Services: Paul Belfanti Creative Director: Carole Anson Art Director and Cover Designer: Heather Scott Art Editor: Greg Dulles Manufacturing Manager: Trudy Pisciotti Manufacturing Buyer: Lisa McDowell Senior Marketing Manager: Jennie Burger © 2002 by Prentice-Hall, Inc. Upper Saddle River, New Jersey 07458 All rights reserved. No part of this book may be reproduced, in any form or by any means, without permission in writing from the publisher. The author and publisher of this book have used their best efforts in preparing this book. These efforts include the development, research, and testing of the theories and programs to determine their effectiveness...
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...Acquisitions Editor: Crystal Taylor Product Managers: Kelley A. Squazzo & Catherine A. Noonan Designer: Doug Smock Compositor: SPi Technologies First Edition © 2011 Lippincott Williams & Wilkins, a Wolters Kluwer business. 351 West Camden Street Baltimore, MD 21201 Printed in China All rights reserved. This book is protected by copyright. No part of this book may be reproduced or transmitted in any form or by any means, including as photocopies or scanned-in or other electronic copies, or utilized by any information storage and retrieval system without written permission from the copyright owner, except for brief quotations embodied in critical articles and reviews. Materials appearing in this book prepared by individuals as part of their official duties as U.S. government employees are not covered by the abovementioned copyright. To request permission, please contact Lippincott Williams & Wilkins at Two Commerce Square, 2001 Market street, Philadelphia, PA 19103 USA, via email at permissions@lww.com, or via website at lww.com (products and services). Library of Congress Cataloging-in-Publication Data Lambert, Harold Wayne, 1972– Lippincott’s illustrated Q&A review of anatomy and embryology / H. Wayne Lambert, Lawrence E. Wineski ; with special contributions from Jeffery P. Hogg, Pat Abramson, Bruce Palmer. — 1st ed. p. ; cm. Includes index. ISBN 978-1-60547-315-4 1. Human anatomy—Examinations, questions, etc. I. Wineski, Lawrence E. II. Title. [DNLM: 1. Anatomy—Examination Questions...
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