【摘要】 以长春市局部路网的地理信息为基础,运用实测GPS数据分别对基于GPS浮动车的路段行程时间的直接估计方法与间接估计方法进行编程实现和测试分析,并且依据所得路段行程时间数据对比分析了两种方法各自的特点及适用范围。结果表明,两种方法适用范围的差别比较明显。更多还原

【Abstract】 The algorithms of direct method and indirect method for estimating link travel time based on GPS equipped floating car are achieved using the programming language and verified with measured GPS data based on part road network in Changchun,and the characteristics and applicability of direct method and indirect method are compared using link travel time data acquired.The results show that the direct method and indirect method hold different characteristics and applicable scope respectively.更多还原