 |
In this paper, the motorway probability of traffic abnormality is judged by the time-series stationarity test of the traffic flow difference between adjacent nodes. The hypothesis of ADF stationarity test is that there is a unit root, namely, the motorway traffic flow time series is unstable. The time series of traffic flow difference between adjacent nodes when traffic is normal is shown in Figure 3, while that of traffic flow difference between adjacent nodes when traffic is abnormal is shown in Figure 4.The time series of traffic flow difference under the two conditions was tested for stationarity, and the results were shown in Fig. 5.
|
IEEE/ICACT20210155 Slide.12
[Big Slide]