Uncertainty in Traffic Flow Estimation Using the Moving-Observer Method
Uncertainty in Traffic Flow Estimation Using the Moving-Observer Method
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发表时间：
2002
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通讯作者：
A. Mulligan;A. Nicholson
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作者：
A. Mulligan;A. Nicholson
这篇会议论文来自新西兰专业工程师学会（IPENZ）运输小组2002年会议，报告了交通流量估计中的不确定性研究。作者研究了新西兰农村道路的移动观测方法的可行性和准确性，其中许多道路流量较低。移动观察者方法涉及移动车辆中的观察者计数在指定长度的道路上通过的迎面而来的车辆的数量。如果已知移动车辆的平均速度、道路长度和行程时间，则可以计算流量。作者的结论是，为了达到一个可接受的精度水平，低流量的农村道路，移动观察员的方法需要太多的行程是实用的。该方法更适合于高交通量的城市道路，尽管在该设置中也有一些关于精度的考虑。
This conference paper, from the 2002 meeting of the Institution of Professional Engineers New Zealand (IPENZ) Transportation Group, reports on a study of uncertainty in traffic flow estimation. The authors investigated the feasibility and accuracy of the moving-observer method for rural roads in New Zealand, many of which have low flow rates. The moving observer method involves an observer in a moving vehicle counting the number of oncoming vehicles passed in a specified length of road. If the average speed of the moving vehicle, length of road, and trip time are known, then the flow rate can be calculated. The authors conclude that in order to achieve an acceptable level of accuracy for low flow rural roads, the moving-observer method requires too many trips to be practical. The method is better suited to a high volume urban road, although there are some considerations as to accuracy in that setting as well.