Since China adopted the policy of reform and opening to the outside world, the ur-ban-traffic problem has become more and more severe with each passing day. With theconcerted efforts of the professionals from all over...Since China adopted the policy of reform and opening to the outside world, the ur-ban-traffic problem has become more and more severe with each passing day. With theconcerted efforts of the professionals from all over the country, and by introducing newtheory, applying new technologies and new methods and by preserving in continuouspractice and exploration, we have obtained gratifying experience and results in trying tosolve the problem. Following is a historical review of the work we have done in trying tofind the solutions to traffic problems. Meanwhile, the author also points out that in thenext ten years, the task of China’s urban traffic-planning is still very arduous and more ef-forts should be made in this respect to meet the needs of our economic development.展开更多
The author advances some basic problems of planning & evaluating for track traffic in the process of putting sustainable development strategy in practice and stresses the study of planning and evaluating method sy...The author advances some basic problems of planning & evaluating for track traffic in the process of putting sustainable development strategy in practice and stresses the study of planning and evaluating method system for track traffic and environment strategy. Summaries and main creative points presented in the thesis are as follows: ①The changes of track traffic planning objects caused by the concept of sustainable development are analyzed; ②The theory & method of track traffic planning optimal decision is set up ; ③Environment impact assessment for track traffic planning is advanced; ⑤ Urban mass transit network planning is studied; ④Planning of intercity rail system——the alignment optimization of dedicated passenger line and high speed railway line is studied ; ⑥ An overall evaluation index system for sustainable development of track traffic planning is established; ⑦ The track traffic building capacity for sustainable development is studied. Further more, the effect of the method and models with empirical studies is verified. The corresponding application software is realized to provide information service and decision making support to track traffic planning for putting theory into practice.展开更多
Urban Air Mobility(UAM)is an emerging transportation system that aims at revolutionizing urban mobility through the deployment of small electric vertical takeoff and landing(eVTOL)aircraft.The development of UAM is la...Urban Air Mobility(UAM)is an emerging transportation system that aims at revolutionizing urban mobility through the deployment of small electric vertical takeoff and landing(eVTOL)aircraft.The development of UAM is largely driven by advances in Intelligent Technology(IT).This review article provides an overview of the UAM system and discusses the application of IT in UAM.Major challenges facing UAM are also identified,and an outlook on the future of this promising transportation system is presented.Our main conclusions suggest that IT is a fundamental driver of UAM,enabling a range of applications such as air traffic management and autonomous drone control.However,the UAM system is facing a number of challenges,including eVTOL technology,system integration issues,and noise pollution.Despite these challenges,the future of UAM appears promising;as a disruptive transportation mode,UAM is expected to play an important role in addressing the growing demand of urban transportation in the coming decades.展开更多
The United States,well-known as A Country on The Wheels,is the most popularized country in auto vehicles and has the largest amount of automobiles in the world.As statistics shown we,in American,there are about eight ...The United States,well-known as A Country on The Wheels,is the most popularized country in auto vehicles and has the largest amount of automobiles in the world.As statistics shown we,in American,there are about eight automobiles for every ten people.For recent thirty years,the total number of civil motor vehicles has increased by 3 times.However the death roll of traffic accidents is dropping off from fifty thousand per year to forty thousand per year.This dramatic contrast shows us American's highly efficient and advanced traffic-manage system.Although many of the advantages minds and regulations are inconspicuous,they are absolutely not unimportant.On the contrary,all these advantages reflect humanization-the core spirit in the United States urban communications.展开更多
文摘Since China adopted the policy of reform and opening to the outside world, the ur-ban-traffic problem has become more and more severe with each passing day. With theconcerted efforts of the professionals from all over the country, and by introducing newtheory, applying new technologies and new methods and by preserving in continuouspractice and exploration, we have obtained gratifying experience and results in trying tosolve the problem. Following is a historical review of the work we have done in trying tofind the solutions to traffic problems. Meanwhile, the author also points out that in thenext ten years, the task of China’s urban traffic-planning is still very arduous and more ef-forts should be made in this respect to meet the needs of our economic development.
文摘The author advances some basic problems of planning & evaluating for track traffic in the process of putting sustainable development strategy in practice and stresses the study of planning and evaluating method system for track traffic and environment strategy. Summaries and main creative points presented in the thesis are as follows: ①The changes of track traffic planning objects caused by the concept of sustainable development are analyzed; ②The theory & method of track traffic planning optimal decision is set up ; ③Environment impact assessment for track traffic planning is advanced; ⑤ Urban mass transit network planning is studied; ④Planning of intercity rail system——the alignment optimization of dedicated passenger line and high speed railway line is studied ; ⑥ An overall evaluation index system for sustainable development of track traffic planning is established; ⑦ The track traffic building capacity for sustainable development is studied. Further more, the effect of the method and models with empirical studies is verified. The corresponding application software is realized to provide information service and decision making support to track traffic planning for putting theory into practice.
文摘Urban Air Mobility(UAM)is an emerging transportation system that aims at revolutionizing urban mobility through the deployment of small electric vertical takeoff and landing(eVTOL)aircraft.The development of UAM is largely driven by advances in Intelligent Technology(IT).This review article provides an overview of the UAM system and discusses the application of IT in UAM.Major challenges facing UAM are also identified,and an outlook on the future of this promising transportation system is presented.Our main conclusions suggest that IT is a fundamental driver of UAM,enabling a range of applications such as air traffic management and autonomous drone control.However,the UAM system is facing a number of challenges,including eVTOL technology,system integration issues,and noise pollution.Despite these challenges,the future of UAM appears promising;as a disruptive transportation mode,UAM is expected to play an important role in addressing the growing demand of urban transportation in the coming decades.
文摘The United States,well-known as A Country on The Wheels,is the most popularized country in auto vehicles and has the largest amount of automobiles in the world.As statistics shown we,in American,there are about eight automobiles for every ten people.For recent thirty years,the total number of civil motor vehicles has increased by 3 times.However the death roll of traffic accidents is dropping off from fifty thousand per year to forty thousand per year.This dramatic contrast shows us American's highly efficient and advanced traffic-manage system.Although many of the advantages minds and regulations are inconspicuous,they are absolutely not unimportant.On the contrary,all these advantages reflect humanization-the core spirit in the United States urban communications.
