Research Into Various Aspects of Loss Brought by Urban Traffic
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Traffic Control Strategies for Congested Freeways and Work Zones
Technical Report Documentation Page 1. Report No. 2. Government Accession No. 3. Recipient's Catalog No. FHWA/TX-08/0-5326-2 4. Title and Subtitle 5. Report Date TRAFFIC CONTROL STRATEGIES FOR CONGESTED FREEWAYS November 2007 AND WORK ZONES Published: October 2008 6. Performing Organization Code 7. Author(s) 8. Performing Organization Report No. Geza Pesti, Poonam Wiles, Ruey Long (Kelvin) Cheu, Praprut Songchitruksa, Report 0-5326-2 Jeff Shelton, and Scott Cooner 9. Performing Organization Name and Address 10. Work Unit No. (TRAIS) Texas Transportation Institute The Texas A&M University System 11. Contract or Grant No. College Station, Texas 77843-3135 Project 0-5326 12. Sponsoring Agency Name and Address 13. Type of Report and Period Covered Texas Department of Transportation Technical Report: Research and Technology Implementation Office September 2005-August 2007 P. O. Box 5080 14. Sponsoring Agency Code Austin, Texas 78763-5080 15. Supplementary Notes Project performed in cooperation with the Texas Department of Transportation and the Federal Highway Administration. Project Title: Improved Techniques for Traffic Control for Freeways and Work Zones URL: http://tti.tamu.edu/documents/0-5326-2.pdf 16. Abstract The primary objective of the research was to identify and evaluate effective ways of improving traffic operations and safety on congested freeways. There was particular interest in finding condition-responsive traffic control solutions for the following problem areas: (1) end-of-queue warning, (2) work zones with lane closure, and (3) queue spillover at exit ramps. Available techniques considered by this research include combination of static and dynamic queue warning systems, dynamic merge control in advance of freeway lane closures, and various traffic control strategies, such as traffic diversion and ramp metering, to mitigate queue spillover at exit ramps. -
Impact of Highway Capacity and Induced Travel on Passenger Vehicle Use and Greenhouse Gas Emissions
Impact of Highway Capacity and Induced Travel on Passenger Vehicle Use and Greenhouse Gas Emissions Policy Brief Susan Handy, University of California, Davis Marlon G. Boarnet, University of Southern California September 30, 2014 Policy Brief: http://www.arb.ca.gov/cc/sb375/policies/hwycapacity/highway_capacity_brief.pdf Technical Background Document: http://www.arb.ca.gov/cc/sb375/policies/hwycapacity/highway_capacity_bkgd.pdf 9/30/2014 Policy Brief on the Impact of Highway Capacity and Induced Travel on Passenger Vehicle Use and Greenhouse Gas Emissions Susan Handy, University of California, Davis Marlon G. Boarnet, University of Southern California Policy Description Because stop-and-go traffic reduces fuel efficiency and increases greenhouse gas (GHG) emissions, strategies to reduce traffic congestion are sometimes proposed as effective ways to also reduce GHG emissions. Although transportation system management (TSM) strategies are one approach to alleviating traffic congestion,1 traffic congestion has traditionally been addressed through the expansion of roadway vehicle capacity, defined as the maximum possible number of vehicles passing a point on the roadway per hour. Capacity expansion can take the form of the construction of entirely new roadways, the addition of lanes to existing roadways, or the upgrade of existing highways to controlled-access freeways. One concern with this strategy is that the additional capacity may lead to additional vehicle travel. The basic economic principles of supply and demand explain this phenomenon: adding capacity decreases travel time, in effect lowering the “price” of driving; when prices go down, the quantity of driving goes up (Noland and Lem, 2002). An increase in vehicle miles traveled (VMT) attributable to increases in capacity is called “induced travel.” Any induced travel that occurs reduces the effectiveness of capacity expansion as a strategy for alleviating traffic congestion and offsets any reductions in GHG emissions that would result from reduced congestion. -
Increasing Highway Capacity Unlikely to Relieve Traffic Congestion
October 2015 Increasing Highway Capacity Unlikely to Relieve Traffic Congestion Susan Handy Department of Environmental Science and Policy Contact Information: University of California, Davis [email protected] Issue Reducing traffic congestion is often Increased roadway capacity induces proposed as a solution for improving fuel additional VMT in the short-run and even efficiency and reducing greenhouse gas more VMT in the long-run. A capacity (GHG) emissions. Traffic congestion has expansion of 10% is likely to increase VMT traditionally been addressed by adding by 3% to 6% in the short-run and 6% to additional roadway capacity via constructing 10% in the long-run. Increased capacity entirely new roadways, adding additional can lead to increased VMT in the short-run lanes to existing roadways, or upgrading in several ways: if people shift from other existing highways to controlled-access modes to driving, if drivers make longer freeways. Numerous studies have examined trips (by choosing longer routes and/or the effectiveness of this approach and more distant destinations), or if drivers 3,4,5 consistently show that adding capacity to make more frequent trips. Longer-term roadways fails to alleviate congestion for effects may also occur if households and long because it actually increases vehicle businesses move to more distant locations miles traveled (VMT). or if development patterns become more dispersed in response to the capacity An increase in VMT attributable to increases increase. One study concludes that the BRIEF in roadway -
Beijing Subway Map
Beijing Subway Map Ming Tombs North Changping Line Changping Xishankou 十三陵景区 昌平西山口 Changping Beishaowa 昌平 北邵洼 Changping Dongguan 昌平东关 Nanshao南邵 Daoxianghulu Yongfeng Shahe University Park Line 5 稻香湖路 永丰 沙河高教园 Bei'anhe Tiantongyuan North Nanfaxin Shimen Shunyi Line 16 北安河 Tundian Shahe沙河 天通苑北 南法信 石门 顺义 Wenyanglu Yongfeng South Fengbo 温阳路 屯佃 俸伯 Line 15 永丰南 Gonghuacheng Line 8 巩华城 Houshayu后沙峪 Xibeiwang西北旺 Yuzhilu Pingxifu Tiantongyuan 育知路 平西府 天通苑 Zhuxinzhuang Hualikan花梨坎 马连洼 朱辛庄 Malianwa Huilongguan Dongdajie Tiantongyuan South Life Science Park 回龙观东大街 China International Exhibition Center Huilongguan 天通苑南 Nongda'nanlu农大南路 生命科学园 Longze Line 13 Line 14 国展 龙泽 回龙观 Lishuiqiao Sunhe Huoying霍营 立水桥 Shan’gezhuang Terminal 2 Terminal 3 Xi’erqi西二旗 善各庄 孙河 T2航站楼 T3航站楼 Anheqiao North Line 4 Yuxin育新 Lishuiqiao South 安河桥北 Qinghe 立水桥南 Maquanying Beigongmen Yuanmingyuan Park Beiyuan Xiyuan 清河 Xixiaokou西小口 Beiyuanlu North 马泉营 北宫门 西苑 圆明园 South Gate of 北苑 Laiguangying来广营 Zhiwuyuan Shangdi Yongtaizhuang永泰庄 Forest Park 北苑路北 Cuigezhuang 植物园 上地 Lincuiqiao林萃桥 森林公园南门 Datunlu East Xiangshan East Gate of Peking University Qinghuadongluxikou Wangjing West Donghuqu东湖渠 崔各庄 香山 北京大学东门 清华东路西口 Anlilu安立路 大屯路东 Chapeng 望京西 Wan’an 茶棚 Western Suburban Line 万安 Zhongguancun Wudaokou Liudaokou Beishatan Olympic Green Guanzhuang Wangjing Wangjing East 中关村 五道口 六道口 北沙滩 奥林匹克公园 关庄 望京 望京东 Yiheyuanximen Line 15 Huixinxijie Beikou Olympic Sports Center 惠新西街北口 Futong阜通 颐和园西门 Haidian Huangzhuang Zhichunlu 奥体中心 Huixinxijie Nankou Shaoyaoju 海淀黄庄 知春路 惠新西街南口 芍药居 Beitucheng Wangjing South望京南 北土城 -
Signature Redacted Sianature Redacted
The Restructure of Amenities in Beijing's Peripheral Residential Communities By Meng Ren Bachelor of Architecture Master of Architecture Tsinghua University, 2011 Tsinghua University, 2013 Submitted to the Department of Urban Studies and Planning in Partial fulfillment of the requirement for the degree of ARGHNE8 Master in City Planning MASSACHUSETTS INSTITUTE OF TECHNOLOLGY at the JUN 29 2015 MASSACHUSETTS INSTITUTE OF TECHNOLOGY LIBRARIES June 2015 C 2015 Meng Ren. All Rights Reserved The author hereby grants to MIT the permission to reproduce and to distribute publicly paper and electronic copies of the thesis document in whole or in part in any medium now known or hereafter created. Signature redacted Author Department of U an Studies and Planning May 21, 2015 'Signature redacted Certified by Associate Professor Sarah Williams Department of Urban Studies and Planning A Thesis Supervisor Sianature redacted Accepted by V Professor Dennis Frenchman Chair, MCP Committee Department of Urban Studies and Planning The Restructure of Amenities in Beijing's Peripheral Residential Communities Evaluation of Planning Interventions Using Social Data as a Major Tool in Huilongguan Community By Meng Ren Submitted in May 21 to the Department of Urban Studies and Planning in Partial fulfillment of the requirement for the degree of Master in City Planning Abstract China's rapid urbanization has led to many big metropolises absorbing their fringe rural lands to expand their urban boundaries. Beijing is such a metropolis and in its urban peripheral, an increasing number of communities have emerged that are comprised of monotonous housing projects. However, after the basic residential living requirements are satisfied, many other problems (including lack of amenities, distance between home and workplace which is particularly concerned with long commute time, traffic congestion, and etc.) exist. -
Mitsubishi Electric and Zhuzhou CSR Times Electronic Win Order for Beijing Subway Railcar Equipment
FOR IMMEDIATE RELEASE No. 2496 Product Inquiries: Media Contact: Overseas Marketing Division, Public Utility Systems Group Public Relations Division Mitsubishi Electric Corporation Mitsubishi Electric Corporation Tel: +81-3-3218-1415 Tel: +81-3-3218-3380 [email protected] [email protected] http://global.mitsubishielectric.com/transportation/ http://global.mitsubishielectric.com/news/ Mitsubishi Electric and Zhuzhou CSR Times Electronic Win Order for Beijing Subway Railcar Equipment Tokyo, January 13, 2010 – Mitsubishi Electric Corporation (TOKYO: 6503) announced today that Mitsubishi Electric and Zhuzhou CSR Times Electronic Co., Ltd. have received orders from Beijing MTR Construction Administration Corporation for electric railcar equipment to be used on the Beijing Subway Changping Line. The order, worth approximately 3.6 billion yen, comprises variable voltage variable frequency (VVVF) inverters, traction motors, auxiliary power supplies, regenerative braking systems and other electric equipment for 27 six-coach trains. Deliveries will begin this May. The Changping Line is one of five new subway lines scheduled to start operating in Beijing this year. The 32.7-kilometer line running through the Changping district of northwest Beijing will have 9 stops between Xierqi and Ming Tombs Scenic Area stations. Mitsubishi Electric’s Itami Works will manufacture traction motors for the 162 coaches. Zhuzhou CSR Times Electronic will make the box frames and procure certain components. Zhuzhou Shiling Transportation Equipment Co., Ltd, a joint-venture between the two companies, will assemble all components and execute final testing. Mitsubishi Electric already has received a large number of orders for electric railcar equipment around the world. In China alone, orders received from city metros include products for the Beijing Subway lines 2 and 8; Tianjin Metro lines 1, 2 and 3; Guangzhou Metro lines 4 and 5; and Shenyang Metro Line 1. -
Congested Development: a Study of Traffic Delays
Congested Development A Study of Traffic Delays, Access, and Economic Activity in Metropolitan Los Angeles September 2015 A Report to the John Randolph and Dora Haynes Foundation Andrew Mondschein, PhD (University of Virginia) Taner Osman, PhD (UCLA) Brian D. Taylor, PhD (UCLA) Trevor Thomas (UCLA) Institute of Transportation Studies UCLA Luskin School of Public Affairs 3250 Public Affairs Building Los Angeles, CA 90095-1656 (310) 562-7356 [email protected] www.its.ucla.edu ii Executive Summary For years Los Angeles has been ranked among the most traffic congested metropolitan areas in the U.S., often the most congested. This past year the Texas Transportation Institute (TTI) ranked LA second only to Washington D.C. in the time drivers spend stuck in traffic. Such rankings are lists of shame, tagging places as unpleasant, economically inefficient, even dystopian. Indeed, the economic costs of chronic traffic congestion are widely accepted; the TTI estimated that traffic congestion cost the LA economy a staggering $13.3 billion in 2014 (Lomax et al., 2015). Such estimates are widely accepted by public officials and the media and are frequently used to justify major new transportation infrastructure investments. They are based on the premise that moving more slowly than free-flow speeds wastes time and fuel, and that these time and fuel costs multiplied over many travelers in large urban areas add up to billions of dollars in congestion costs. For example, a ten mile, ten minute suburb-to-suburb freeway commute to work at 60 miles per hour might occasion no congestion costs, while a two mile, ten minute drive to work on congested central city streets – a commute of the same time but shorter distance – would be estimated to cost a commuter more than 13 minutes (round trip) in congested time and fuel costs each day. -
2019-07Contents
Full Text and Manuscript Submission: www.besjournal.com BES Biomedical and Environmental Sciences Table of Contents July 2019, Volume 32, Number 7 Development of Public Health for 70 Years 477 Association between Lipoprotein (a) Levels and Metabolic Syndrome in a Middle-aged and Elderly Chinese Cohort WU Xue Yan, LIN Lin, Qi Hong Yan, DU Rui, HU Chun Yan, MA Li Na, PENG Kui, LI Mian, XU Yu, XU Min, CHEN Yu Hong, LU Jie Li, BI Yu Fang, WANG Wei Qing, and NING Guang 485 Shanghai Institute of Endocrinology and Metabolism Original Articles 486 Food Frequency Questionnaire for Chinese Children Aged 12-17 Years: Validity and Reliability LIU Dan, JU La Hong, YANG Zhen Yu, ZHANG Qian, GAO Jian Fen, GONG Di Ping, GUO Dan Dan, LUO Shu Quan, and ZHAO Wen Hua 496 The Impacts of Simulated Microgravity on Rat Brain Depended on Durations and Regions CHEN Bo, ZHANG Yu Shi, LI George, CHO Jun-Lae, DENG Yu Lin, and LI Yu Juan 508 Subchronic Oral Cadmium Exposure Exerts both Stimulatory and Suppressive Effects on Pulmonary Inflammation/Immune Reactivity in Rats KULAS Jelena, NINKOV Marina, TUCOVIC Dina, POPOV Aleksandrov Aleksandra, UKROPINA Mirela, CAKIC MILOSEVIC Maja, MUTIC Jelena, KATARANOVSKI Milena, and MIKROV Ivana 520 An Investigation on the Molecular Characteristics and Intracellular Growth Ability among Environmental and Clinical Isolates of Legionella pneumophila in Sichuan Province, China ZENG Lin Zi, LIAO Hong Yu, LUO Long Ze, HE Shu Sen, QIN Tian, ZHOU Hai Jian, LI Hong Xia, CHEN Da Li, and CHEN Jian Ping 531 Intranasal Immunization Using -
Beijing's Suburbs
BEIJING MUNICIPAL COmmISSION OF TOURISM DEVELOPMENT BEIJING’S SUBURBS & SMALL TOWNS TO VISIT Getaway from China’s Capital —— 1 Discovering the Unique Charm and Vibes of Beijing’s Suburbs and Small Towns 1 Beijing’s Suburban Charm and Small-Town Vibes In the long-standing imperial Beijing, the red walls and yellow tiles exude the majestic imperial glamour, and the sedate country scene easily comes into your peripheral vision. A visit in Beijing guarantees you a walk of imperial solemnity in downtown Beijing, and a lot more country fun in the suburbs. You will see the many faces of the suburbs in the four seasons, walk through all the peaceful folk villages and exotic small towns, and make the most of your Beijing trips. This feature will highlight attractions of Beijing’s suburbs in the four seasons and open up year-round opportunities for visitors to soak up the best of the country life. A variety of small towns will also be featured, making for the best short trips to relax. 2 TRAVEL IN BEIJING’S SUBURBS AND SMALL TOWNS Highlights A Travel Guide to Beijing’s Suburbs Spring Explore the Nature | Feast on the Wild Summer Make a Splash | Go on Leisurely Outings Autumn Hike for Foliage | Foraging for Autumn Fruits Winter Ski down the Slopes | Bathe in Hot Springs 3 Best Small Towns to Visit “Chinese national” Small Towns 2 Gubei Water Town the Ultimate Retreat | Xiaotangshan the Hot Spring Resort “Western style” Small Towns 2 Spring Legend Town in Huairou | Huanghou Town Leisure Holiday Village Themed Small Towns 3 CTSHK RV Park of MYNS | Chateau Changyu AFIP Global Beijing | Qianjiadian Town in Yanqing Unique Cultural Villages 3 Cuandixia Village | Lingshui Village in Mentougou | Kangling Village For more information, please see the details below. -
Analysis of Historical Traffic Speeds in Chicago C
Analysis of Historical Traffic Speeds in Chicago C. Scott Smith, PhD AICP Assistant Director Chaddick Institute for Metropolitan Development DePaul University [email protected] 562-221-5107 (cell) 312-362-5770 (office) This analysis briefly summarizes geographic and temporal trends in arterial traffic speeds in Chicago. The analysis was carried out using traffic congestion data made available by the City of Chicago. The dataset reports traffic congestion or vehicle speeds by traffic region. Traffic regions are groupings of two or three adjacent community areas that are thought to have similar traffic conditions. The dataset summarizes average speeds for each traffic region over a five-year period beginning January 2013 through February 2018 (although seven months of data are missing for 2015). The speed data are logged as part of the City of Chicago Traffic Tracker program which estimates traffic congestion on Chicago’s arterial or non-freeway streets continuously via GPS traces received from Chicago Transit Authority (CTA) buses. Congestion by traffic region provides average speeds for all arterial street segments within a region. The data must be interpreted with some caution given that there can be considerable volatility in traffic segment speed due to a broad number of factors including frequent transit stops, crashes and construction. The city emphasizes that, “[s]peed on individual arterial segments can fluctuate from heavily congested to no congestion and back in a few minutes” although, when averaged over a 24-hour period, the estimates likely provide an adequate representation of actual traffic patterns. The dataset used for the following analysis has a total of 6,275,764 records, each of which includes information on bus counts, reads, average daily speeds and traffic region. -
Campus Life Guide for International Students
CAMPUS LIFE GUIDE FOR INTERNATIONAL STUDENTS International Students & Scholars Center 4 Life at Tsinghua Contents Food and Drink 13 Shopping 15 Postal and Delivery Services 16 Transportation 16 Sports and Leisure 18 Student Associations 19 Important Dates and Holidays 20 5 Academics and Related Resources Teaching Buildings and Self-Study Rooms 21 Learning Chinese 21 Libraries 22 Important University Websites 22 Center for Psychological Development 23 Center for Student Learning and Development 23 Career Development Center 24 1 Welcome to Tsinghua Center for Global Competence Development 24 Welcome Message 01 About Tsinghua 02 6 Health and Safety Hospitals 25 Before You Leave Home Health Insurance 26 2 Campus Safety Tips 27 Important Documents 03 Visa 03 Physical Examination 05 Beijing and Surrounds Converting Money 05 7 What to Bring 06 Climate 29 Accommodation 06 Transportation 29 Wudaokou and Surrounds 30 Travel 30 3 Settling In Beijing Life Web Resources 30 Getting to Tsinghua 08 Housing Arrangements 08 Useful Information and Contacts University Registration 09 8 Local Sim Card 09 Emergency Contacts 31 Bank Card 10 On-Campus Important Contacts 31 Student IC Card 10 Off-Campus Important Contacts 31 Internet 11 Campus Map 32 Student Email Account 12 International Students & Scholars Center 33 Physical Examination Authentication 12 Orientation 12 Appendix Additional Information 12 Welcome to Tsinghua 欢迎来到清华 About Tsinghua Founded in 1911, Tsinghua University is a unique comprehensive university bridging China and the world, connecting ancient and modern society, and encompassing the arts and sciences. As one of China's most prestigious and influential universities, Tsinghua is committed to cultivating globally competent students who will thrive in today's world and become tomorrow's leaders. -
Research on Digital Flow Control Model of Urban Rail Transit Under the Situation of Epidemic Prevention and Control
The current issue and full text archive of this journal is available on Emerald Insight at: https://www.emerald.com/insight/2632-0487.htm SRT fl 3,1 Research on digital ow control model of urban rail transit under the situation of epidemic 78 prevention and control Received 30 September 2020 Qi Sun, Fang Sun and Cai Liang Revised 26 October 2020 Accepted 26 October 2020 Beijing Rail Transit Road Network, Beijing, China, and Chao Yu and Yamin Zhang Beijing Jiaotong University, Beijing, China Abstract Purpose – Beijing rail transit can actively control the density of rail transit passenger flow, ensure travel facilities and provide a safe and comfortable riding atmosphere for rail transit passengers during the epidemic. The purpose of this paper is to efficiently monitor the flow of rail passengers, the first method is to regulate the flow of passengers by means of a coordinated connection between the stations of the railway line; the second method is to objectively distribute the inbound traffic quotas between stations to achieve the aim of accurate and reasonable control according to the actual number of people entering the station. Design/methodology/approach – This paper analyzes the rules of rail transit passenger flow and updates the passenger flow prediction model in time according to the characteristics of passenger flow during the epidemic to solve the above-mentioned problems. Big data system analysis restores and refines the time and space distribution of the finely expected passenger flow and the train service plan of each route. Get information on the passenger travel chain from arriving, boarding, transferring, getting off and leaving, as well as the full load rate of each train.