This paper mainly deals with the effects of transit stops on vehicle speeds and conversion lane numbers in a mixed traffic lane. Based on thorough research of traffic flow and cellular automata theory, it calibrates t...This paper mainly deals with the effects of transit stops on vehicle speeds and conversion lane numbers in a mixed traffic lane. Based on thorough research of traffic flow and cellular automata theory, it calibrates the cellular length and the running speed. Also, a cellular automata model for mixed traffic flow on a two-lane system under a periodic boundary condition is presented herewith, which also takes into consideration the harbour-shaped transit stop as well. By means of computer simulation, the article also studies the effects of bus parking time on the traffic volume, the transit speed and the fast lane speed at the same time. The results demonstrate that, with the increase of the bus parking time, the traffic volume of the transit stop and the transit speed decrease while the fast lane speed increases. This result could help calculate the transit delay correctly and make arrangements for transit routes reasonably and scientifically.展开更多
Climate change is the first real challenge of this global generation,and,so far,it hasn’t gone that well.Whether it’s rising sea levels threatening cities like Shanghai or expanding vectors of malaria,China must cha...Climate change is the first real challenge of this global generation,and,so far,it hasn’t gone that well.Whether it’s rising sea levels threatening cities like Shanghai or expanding vectors of malaria,China must change with the climate.As the glaciers of China’s Third Pole retreat,as new and more regular floods attack first-tier cities and rural towns alike,as wheat yields decrease in the north and entire lakes dry up in the west,the days of ignoring climate change have展开更多
基金Project supported by the Science and Technology Support Program of Gansu Province,China (Grant No. 0804GKCA038)
文摘This paper mainly deals with the effects of transit stops on vehicle speeds and conversion lane numbers in a mixed traffic lane. Based on thorough research of traffic flow and cellular automata theory, it calibrates the cellular length and the running speed. Also, a cellular automata model for mixed traffic flow on a two-lane system under a periodic boundary condition is presented herewith, which also takes into consideration the harbour-shaped transit stop as well. By means of computer simulation, the article also studies the effects of bus parking time on the traffic volume, the transit speed and the fast lane speed at the same time. The results demonstrate that, with the increase of the bus parking time, the traffic volume of the transit stop and the transit speed decrease while the fast lane speed increases. This result could help calculate the transit delay correctly and make arrangements for transit routes reasonably and scientifically.
文摘Climate change is the first real challenge of this global generation,and,so far,it hasn’t gone that well.Whether it’s rising sea levels threatening cities like Shanghai or expanding vectors of malaria,China must change with the climate.As the glaciers of China’s Third Pole retreat,as new and more regular floods attack first-tier cities and rural towns alike,as wheat yields decrease in the north and entire lakes dry up in the west,the days of ignoring climate change have
