On the improvement of the current status of urban bus transport Paper Keywords: organization; planning Abstract: Urban traffic system is the urban system is an important subsystem， the city depends on the survival and development of transport， the rapid development of urban traffic and promote The bus transport in urban traffic is an important part of the city， it should speed up the development of urban bus transport in order to promote the rapid development of Passenger traffic from the city traffic can be classified as public transport and private transport system of the At present， China's urban public transport characteristics are: the city public transport lanes with low coverage and low levels due to management， and other vehicles occupied by frequent public transport bus lanes caused by the low operating Urban road unreasonable， so that local public transportation system utilization Aging of the city bus a high degree of scheduling and organization of the Should speed up the development of urban transport system， the full development of urban transportation convenient， fast， large Therefore the following aspects should be the improvement of the urban bus transportation 1 city bus transport lines Urban public transport routes should be in line the city's main traffic flow， public transport in cities should be divided into the main lines and feeder The main line linking the main passenger terminal and transportation hub， more than millions of people in big cities， the focus on passenger traffic hub should be set up quickly direct public transport Generally by means of surveys to obtain data on a straight-line access to integrated planning and overall planning should be coordinated with the City to carry The use of lanes， the best rationale for a dedicated lane so that other lane segregation， isolation can be used with dedicated lanes and is equipped with monitoring 2 urban public traffic density lines Urban public transport motor vehicles are usually lines of planning density， in the city center 3 ~ 4km/km2， peri-urban areas of 2 ~ 5km/km2， the distance between the Route 600 ~ 1000m， walking no more than 4 ~ 6min appropriate， the Town urban bus to the length of line should be advised as to the length of 8 ~ Would cause long lines of passengers waiting a long time and bus time arrival rate of a series of drawbacks such as 3 bus scheduling and organization Vehicle Scheduling optimization is to determine the normal and efficient public transport operation of the important Changes based on passenger flow and the specific operating conditions and other regulations， various models of vehicles and road traffic organization， such as passenger flow during peak hours to focus on the trunk of the vehicle with high-capacity organizations Station or shuttle bus from the train， in the flow large and narrow streets， small turning radius and the flow concentration of the body block with short In addition， they can employ intelligent management For example: public transport vehicle automatic threshold control system (collectively referred to international AVMcautomatic vehicle monitoring system)， it can dispatch room in between efficient information access， effective communication links between the two (GIS) The main vehicles used by the GPS scheduling， dynamic target tracking and data collection on traffic flow， GIS geographic information used in traffic management and visualization of dynamic traffic information In addition， you can use variable message board information， broadcasting， on-street public phone， public computer network terminal， which has been in the way of public transport users on the roadside， bus stations or bus stops and on the platform， access to real-time information on bus travel 4 Coordination of bus and taxi operations management Door-to-door taxi service for passengers with a higher level of public Utilization rate of its high energy consumption and less than a bus， air pollution is serious， complete the volume occupied by units of time and space resources， such as road defects， it should be based on the level of urban development and the actual needs of the taxi industry to strengthen the management and operation management， so that the coordinated development of the 5 vehicle technologies to improve China's passenger capacity by bus at a small (60-90 passenger)， and medium-sized (90-130 passengers) and large articulated vehicles (130-180 passengers) should be based on actual passenger traffic to the deployment of appropriate models to resources to reduce the rate of empty It shall also meet the passenger demand on the city bus traveling comfort and convenience of passengers getting on or off The development of an independent suspension type， dedicated low-floor bus chassis and city buses， so bus and channel height of the pedal in order to reduce the vehicle center of gravity high over the estate to the requirements of It should also be a timely replacement of vehicles， the general public the best service life of 5 to 6 Extended active duty bus noise， and exhaust， and mechanical failure more than a series of shortcomings， with the scientific and technological development， many countries have also developed a number of the outcome of the application of modern high-tech For example: the invention of the next generation of Japan's "middle-distance inter-city bus transport system of " Germany developed a city with public passenger transport vehicles， new cars can be run along the fixed-line and the traditional advantages of the bus and tram 6 Public Transport Priority Development Strategy Urban public transport as the road space point with the demand， low environmental pollution， energy consumption should be small， giving priority to the development of traffic， in addition to China's cities are mostly intensive， therefore， to public transport systems and other forms of secondary form of transport in our country the structure of urban passenger transport natural direction of Commonly used way of public transportation there are two types of priority: Set according to the actual situation dedicated bus lane or bus lane Intersection of the first; junction bus priority measures on the main bus phase-specific， dedicated bus lane entrance， as well as other special bus priority measures in line with the City bus transportation is the main urban transport system is to communicate all aspects of the social production of an important part of urban development is the decision an important foundation for the development of one， so to speed up the development of the city 【【题目你可以翻译为论改善我国目前城市公共汽车交通现状，希望可以帮助你】】
Guide the future development of the concept of automotive vehicles Summary of high-tech popularization and application makes the pace of replacement automotive products faster and faster， also makes the Chinese automotive industry independent research and development level and technical level with the international on the growing gap in the development of the concept car is even more the difference between the very WTO accession for China car alarm sounded， but also tremendous opportunity， our government， as well as automotive companies must increase their research and automotive design input， to establish a positive right car design concept， the concept of extensive vehicle design Keywords concept car designed to develop science， technology and culture Technology start-ups PIONEERINGWITHSCIENCE & TECHNOLOGYMONTHLY The 21st century， in order to lead and performance of the new century， the development of future automotive trends， a number of international auto companies， one after another at the major auto show in the world to launch its own concept car and new There is， however， must be caused by a phenomenon we are concerned about: As a car big country， but few Chinese car makers to launch its own development and design concept Are one of the main reasons for China's automotive design concepts and methods， as well as the lack of research and development of concept cars do not pay enough It can be said that a self-designed and self-development capacity of the automobile industry， it is difficult to say that is a complete auto Thus we must intensify the study of automotive design and input， to establish a positive right car design concept， the concept of extensive vehicle 1 "concept car" is defined The so-called "concept cars" that have not yet begun to enter the market with a design unique and must advance the awareness of the new Its main characteristics are: it must give people are to consider that can guide the new concept It has just the design in general at the time， people's aesthetic ideas， the purchasing power and even the level of motor vehicle manufacturing industry is also Generally it will be it avant-garde design， innovative materials， bold use of a more perfect performance， the new car interior design indicates that the direction of development of the automobile Some of the world's largest car company every year to spend many human and material resources to design their own concept car， and in some large auto exposition on It can be said that with the continuous introduction of concept cars， the near future may occur on some concept cars have today， some features or functions of the But not necessarily a concept car will each eventually evolve into mass production cars to enter the market， the majority of concept cars are finally only a "concept" for people to discuss the 2 concept car， in reality the meaning of 1 concept car design and development of automotive products reflected the development trend of 1 the performance of the highest scientific level and the most sophisticated technology in concept car At the International Motor Show the previous， and the major automotive companies and the introduction of the concept of lot of cars， concept cars to remove these sleek， but also more integrated into a large number of high-tech and modern means of the introduction of the concept car to become Motor Company takes pride in the idea of the concept of automotive research and development are often accompanied by new technologies and the use of new materials with certain forward-looking， herald a new stage of development and the beginning for this reason that car companies the development of the concept car has invested great human and material resources， with its show car the company's strong momentum of Various high-tech applications， making car slowly evolved into information， communications， entertainment centers and the exchange of information with the outside world， the computer functions and Internet all-round involvement， in-car information and entertainment equipment， advanced navigation equipment， real-time traffic information function of the growing popularity of the inevitable demand of these high-tech automotive designers transcend time and space to establish a new value system， the emergence of various new technologies for the automotive design freely given to a wider Function of motor vehicles for further expansion and development of the concept car， the car gradually from the cold machinery into human information exchange platform， if the concept car has its own way of expressing their emotions with pregnant， anger， sadness and joy， such as facial expression make the concept car than in high volume production cars， become a new symbol of Concept Car Design of automotive products have greater and greater impact， it represents the development direction of the automobile industry and the basic idea of the automobile company design standards and a symbol of scientific and technological 2 human physiological needs and psychological needs of the largest Satisfied --- Automotive Engineering in the Ergonomics Ergonomics are 50 in the early 20th century with the rapid development of a new subject with the aim of research， design and engineering technology to solve the relationship between the human Car body design in ergonomics， it is to people (drivers and passengers) as the center， from the body's physiology， psychology， and exercise the human body， the research body design， layout and equipment in terms of how to adapt to people need to create a manipulation convenient， safe， reliable， beautiful and comfortable driving environment and take the environment， that is the best person to design a - vehicle - environment Automotive Design Human-Computer analysis of the first ministries to human size required for measurement， statistics and analysis， conducting interior layout design as a basis to determine the effective space vehicle， as well as parts， assemblies (seats， dashboard ， steering wheel， ) position and dimensions of the relationship between Through the study of human physiological structure， so that the seat design in full compliance with the requirements of human Based on the manipulation of human manipulation of the scope and power to determine the layout of the manipulator position and force size， so that when the human body to manipulate natural， rapid， accurate and lightweight， so as to reduce the degree of manipulation of Through the visual characteristics of the human eye， the effect of vision research， testing， checking driver information system， to ensure that drivers have access to proper driving Exercise in accordance with the characteristics of the human body to study the automobile collision on the human body， a reasonable protection， the right to determine the hinged point seat belts and binding on the human body to study the vibration of the impact on ride comfort， research on and get off at the convenience of passengers， and door openings in order to determine location and According to the body's physiological requirements， reasonable certainty that the air-conditioning system and Research on the psychological characteristics and requirements， to design a comfortable， beautiful， relaxed by the 3 virtual product development technology At present， a growing number of automotive design companies and manufacturing companies to start using virtual product development technology， using three-dimensional virtual reality 3D technology development concept Opel car using 3D virtual reality technology concept car design and Designers can experience floating in the air of a virtual image of car design and manufacturing， saving considerable development costs， and plans to be extended to its North American assembly plant to Britain's Rolls-Royce， Renault， France， Germany Audi， as well as Italy， Sweden and other auto plants are actively engaged in this virtual design and Over the past automotive research and development centers to develop new or modified are first shaped body sludge physical model， is extremely time-consuming Now automotive R & D， in particular the development of concept cars are increasingly seeking the shortest development If the introduction of virtual product development technologies， as long as the computer input data to construct a model figure model， in the laboratory can show an ideal vehicle images， as long as the engineers wear eyepiece， you can see clearly， there is such as a car in front of us true， after all the discussion of design engineers modifications， you can quickly design an ideal new Stereotypes， the computer can use the data， outsourcing trial and trial fitted the new parts and components， assembly achieve zero error， and the development of aging more rapidly than in the 4 the concept of green environment-friendly vehicles to the development trend of Since entering the 21st century， countries around the world have been produced about 5 billion vehicles， according to expert estimates that in 2010 global vehicle production will reach 75 People sigh at the rapid development of automobile industry， but also an increasing awareness of pollution from motor vehicles to harm human beings， so many countries of the vehicle to develop environmental protection measures and regulations to protect the environment for human survival， so automotive environmental protection the design of this new concept car design to be placed in a prominent position on the Improve energy efficiency， improved engine configurations， including electronically controlled fuel injection system， secondary air injection， thermal reactor， exhaust gas recirculation system， catalytic purification device， crankcase ventilation systems， fuel evaporation control The development of alternative fuels， research and development of new environmentally-friendly energy， including natural gas， liquefied petroleum gas， fast charging batteries， hybrid power， hydrogen In the automotive manufacturing process， use of green materials， green packaging， green manufacturing processes and equipment and equipment Green car recycling 2 Concept car indicates road traffic in the evolution of human behavior 1 Concept foretells the future of the way road traffic trends Along with the development of automobile， the vehicle status is also slowly change， now car in people's minds as a symbol， a symbol of wealth and the embodiment of a status， but the car as a way of the nature of road traffic has Concept car design is based on the nature of a car's innovative design Concept car at the design of the way through the daily life of mankind， human beings in road traffic in the use of methods such as behavior and ways of life all aspects of prediction and analysis， it is envisaged to solve the future in the way road traffic between the object harmonious Strong and high-speed in today's technology enables the development of means of transport have a much broader space for development， more and more high-tech continuously applied at a new At present many of the world's major auto companies have realized that the development of the next car is no longer the biggest obstacles are technical limitations， but limits the designers Now appearing in major auto show concept cars are generally two types: one is based on the latest available technology can achieve another kind of concept cars are those who put forward some innovative technology options but is still in the research phase of the concept Able to express their feelings such as car， truck can random shell replacement car， be able to easily change the driving mode of motor vehicles， be able to swim in the water of the amphibious vehicle， able to fly in space vehicles， be able to change Like from Toyota and Sony jointly developed by "POD" cars， will be able to through the car before the lights， mirrors， antenna， as well as the rear seat to the car owners to express their "" Like Volkswagen's Seat International Auto Show in the United States on the introduction of multi-functional concept car "Sal? Juancheng sa"， there are sports， comfort and three kinds of urban-type driving mode selection for 2 Concept of culture differences in performance The United States as a world leader in the auto industry， concept cars at the manufacturing are on the forefront in the At the United States because of cultural blending， collision， so the concept car embodies the greater the diversity of cultures; are also caused by a highly developed country commercial， commercial design and pragmatism prevailed， so the design is set up at a deep aesthetic Ethics on the real and solve practical With the American cars are in sharp contrast to the Japanese concept Japan as the world's output of the second car big country， its concept car many practical and imagination， technology is better than art， more concerned about solving technical problems， it can be said in Japan This is the premise of the concept of car design， each model is to solve one kinds of technical problems The Japanese car model to maintain a small， simple， style characteristics of the economy and harmonious relations between man-machine deal with the Japanese are reflected as a delicate oriental thinking and compromise approach to solve the The United States put the design of commercial operation as an important aspect， Japan put out of Products Designed to accelerate as a tool， Germany put Designed as a social and cultural foundation， while the French took the design as a designer of stage From various countries so the concept of car design in different styles， we can see different countries， different concepts， as well as their different cultural backgrounds 3 Concluding remarks The future of automotive design as the development of the inevitable progress of Automotive Technology with each passing day， many of the artistic style of the designer will make it even more widely and more strongly reflected in the car design， and give people a wider Under high-tech， and personality of the car more humane 21st century will be the necessity of the development of the automobile industry， because it is consistent with human culture， the pursuit of individuality and Therefore， the increase in automobile design concept of the attention and input， will be the development of China's automobile industry has played a great role in pushing References 1尹定邦 Introduction to Study Design [M] Hunan: Hunan Science and Technology Press， 1999 2张洪欣 Auto Design [M] Beijing: Mechanical Industry Press， 1997 3 Tang Jia-Ti， Han Xiao Jian had --- Product conceptual design theory， methods and techniques [M] Beijing: Mechanical Industry Press， 2002 Tang Shu-Min Concept cars and car design development and innovation [J] Shenyang Institute of Aeronautical Engineering Journal， 2002 (6)
Cars in America(美国的汽车)Cars in AmericaCars are an important part of lifein the United S The car made the UnitedStatesanationon Andit helped to make the United States what it is There are three main reasons why the car became so popular in the United S First of all the country is a huge one and Americans like to move around in The cars provide the most comfortable and cheapest form of The second reason that cars are popular is the fact that the United States never really developed an efficient and inexpensive form of public Long-distance trains have never been as common in the United States as they are in other parts of the Nowadays there is a good system of air service provided by But it is too expensive to be used The third reason is the most important one， The American spirit of independence is what really made cars Americans don't like to wait for a bus， or a train or even a They don't like to have to follow an exact And the freedom a car gives them is what Americans want most to The decrease of gas supplies has caused a big problem for A But the answer will not be a bigger system of public The real solution will have to be a new kind of car， one that does not use so much 美国的汽车汽车是美国生活的重要组成部分。汽车使得美国成为轮子上的国家，它也帮助美国成为现在的样子。汽车在美国如此盛行有三个主要原因。首先这个国家地域辽阔，而美国人喜欢在其间来回走动。汽车提供了最舒适最便宜的交通方式。汽车如此盛行的第二个原因是美国从未真正发展过有效廉价的公共交通这一事实。美国的长途火车从未像世界上其它地方那么普及。如今飞机提供了空中服务的良好体系。但是飞机太贵了，不能频繁使用。而第三个原因是最为重要的。美国人的独立精神是使得汽车盛行的真正原因。美国人不喜欢等公共汽车、火车甚至飞机。他们不喜欢必须遵循精确的时间表。汽车给予他们的自由正是美国人最想得到的。汽油供给的减少已经给美国人带来了巨大的问题。但答案不是发展更大型的公交体系。真正的解决方式必须是一种新型的汽车，那种不需要使用很多燃料的汽车。Car PollutionEach year there is an increasing number of cars on the roads as millions of new cars are One out of six Americans works at making cars， driving trucks， building roads or filling up Americans couldn't live without cars!Most Americans would find it hard to imagine life without a However， some have realized the serious problem of air pollution caused by The polluted air becomes poisonous and dangerous to One way to get rid of the polluted air is to make a car without But to build a clean car is easier said than Progress in this field is Another way is to replace car engines with something Inventors are now working on steam cars as well as electric Many makers believe that it will take years to develop a practical model for To prevent the world from being polluted by cars， we have to make some changes in our Americans， for example， have to cut down on the number of their total They are encouraged to use bicycles， which are thought to help keep the air But this change does not come A large number of workers may find themselves without jobs if a car factory cioses Thus the problem of air pollution would become less important than that of Although cars have led us to a better life， they have also brought us new 汽车污染上路的汽车数量逐年增长，同时，每年都会生产出几百万辆新车。在美国，每六个人中就有一个从事与汽车相关的工作：造车、开车、修路、加油等等。离开汽车，美国人无法生活!大部分美国人简直无法想象没有车的生活会是什么样子。但是一些人也已经意识到汽车造成的空气污染已成为严重的问题。被污染的空气具有毒性，并且危害健康。解决空气污染的方法之一就是制造无污染汽车。但是生产清洁汽车说来容易做来难。目前，这一领域的进展十分缓慢。另一个方法就是使用其他东西替代汽车发动机。发明家正在研制蒸汽汽车和电车。但是许多厂家认为我们可以使用的实用型汽车的诞生可能还需要几年时间。要想阻止全球化的汽车污染，我们需要对自己的生活方式做出适当的改变。例如，在美国，需要缩减汽车总量。鼓励人们使用有助空气清洁的自行车。但这种改变不能一蹴而就。一旦汽车工厂关闭，就会有大量工人失去工作。与失业相比，空气污染似乎就不再那么重要了。尽管汽车为我们带来了更加舒适的生活，同时，它也带来了新的问题。
