计算机工程与应用
計算機工程與應用
계산궤공정여응용
COMPUTER ENGINEERING AND APPLICATIONS
2010年
7期
236-238
,共3页
顾九春%陈燕%汪海龙%张全忠
顧九春%陳燕%汪海龍%張全忠
고구춘%진연%왕해룡%장전충
元胞自动机%大型货车%混合交通流%计算机模拟
元胞自動機%大型貨車%混閤交通流%計算機模擬
원포자동궤%대형화차%혼합교통류%계산궤모의
Cellular Automaton model%large-scale freight vehicles%mix traffic flow%computer simulation
高速公路上的车辆到达是随机的,且含有车型大、运行速度低的大型货车,其对交通流影响很大.结合我国高速公路特点,通过重新标定元胞长度、运行车速、随机慢化机制和制定车道转换规则,建立了开放边界条件下大型货车影响的双车道多速混合交通流元胞自动机模型;通过计算机模拟分析了速度、密度、流量三参数之间关系,寻找出了大型货车占有率、随机慢化概率等因素对交通流的影响规律.
高速公路上的車輛到達是隨機的,且含有車型大、運行速度低的大型貨車,其對交通流影響很大.結閤我國高速公路特點,通過重新標定元胞長度、運行車速、隨機慢化機製和製定車道轉換規則,建立瞭開放邊界條件下大型貨車影響的雙車道多速混閤交通流元胞自動機模型;通過計算機模擬分析瞭速度、密度、流量三參數之間關繫,尋找齣瞭大型貨車佔有率、隨機慢化概率等因素對交通流的影響規律.
고속공로상적차량도체시수궤적,차함유차형대、운행속도저적대형화차,기대교통류영향흔대.결합아국고속공로특점,통과중신표정원포장도、운행차속、수궤만화궤제화제정차도전환규칙,건립료개방변계조건하대형화차영향적쌍차도다속혼합교통류원포자동궤모형;통과계산궤모의분석료속도、밀도、류량삼삼수지간관계,심조출료대형화차점유솔、수궤만화개솔등인소대교통류적영향규률.
It is random that the vehicle arrives on the highway,because of the]arge style,low speed of the large-scale freight vehicles,and the impact of the freight vehicles must be considered when the Cellular Automaton(CA) model is created.Combined the characters of the freeway in our country,the length of the cellular,running speed,random slow mechanism and lane change are demarcated,and mixed multi-speed vehicles on two-lane CA model under the impact of the freight vehicles with open boundary condition are constructed.The relationship between the speed,density and traffic volume is analyzed by the computer simulation ,getting off some factors such as freight vehicles occupation rate,random slow probability impact on traffic flow.