摘要
网格为大规模的交通仿真提供了高性能的计算资源。在网格环境下大规模仿真从模型的准确性、运算的高效性、系统的可用性等方面都得到了很大的提升。通过对海量流动车辆的GPS历史数据的整合,并结合实时GPS数据估计出大范围的时变OD矩阵。通过Web Service的应用使仿真成为一种互联网上的服务。通过并行计算使得后台的仿真计算能力得到了提升。
Grid provides high quality computing resource for large-scale transportation simulation. Under the environment of grid, the accuracy, efficiency and availability of are transportation simulation promoted significantly. Based on the integration of massive history GPS data of automobiles and the combination of real time GPS data, the OD matrix of large-scale traffic network was estimated. By applying Web Service technology, the simulation on Internet as a service was provided. Using parallel computing, the capacity and the scalability of simulation computing were promoted.
出处
《系统仿真学报》
EI
CAS
CSCD
北大核心
2008年第16期4330-4333,共4页
Journal of System Simulation
基金
国家自然科学基金重点项目(60534060)
国家发改委项目(CNGI-04-15-5A)
科技部国际合作重点项目(2005DFA10100)
上海市基础研究重点项目基金(05JC14063).
关键词
网格
大规模交通仿真
OD矩阵
并行计算
Grid
large-scale transportation simulation
OD matrix
parallel computing
