路段流量——在一定时间内，沿该路段的一个方向通过的货物数量(t／h)。
现有OD矩阵反推技术大都将路段流量确定为稳定不变的，导致反推精度不高。
Link flows are usually hypothesized as constant variables in the existing OD matrix estimation technology, which yields a low accuracy.
为了找到污染物浓度和机动车数量的关系，科学家们在北京的主要路段设置了微波雷达记录每小时机动车的流量。
To study the correlation between pollutants and traffic, microwave radars have been installed at main roads in Beijing to count the vehicles on the road each hour.
运用噪声测量基本方法，测量了大连市西南路某路段交通噪声值并统计出不同类型的机动车流量数据。
By using the basic method of noise measurement, traffic noise values were measured, and different types of vehicle flow data were gained in a certain section of the Southwest Road in Dalian.
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