How to Identify Patterns of Citywide Dynamic Traffic at a Low Cost? An In-Depth Neural Network Approach with Digital Maps
How to Identify Patterns of Citywide Dynamic Traffic at a Low Cost? An In-Depth Neural Network Approach with Digital Maps
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如何低成本识别全市动态交通模式?
DOI:
10.1155/2021/6648116
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发表时间:
2021-05
期刊:
影响因子:
2.3
通讯作者:
Wang Yong
中科院分区:
文献类型:
--
作者:
Zhang Li;Gong Ke;Xu Maozeng;Li Aixing;Dong Yuanxiang;Wang Yong
The identification and analysis of the spatiotemporal dynamic traffic patterns in citywide road networks constitute a crucial process for complex traffic management and control. However, city-scale and synchronal traffic data pose challenges for such kind of quantification, especially during peak hours. Traditional studies rely on data from road-based detectors or multiple communication systems, which are limited in not only access but also coverage. To avoid these limitations, we introduce real-time, traffic condition digital maps as our input. The digital maps keep spatiotemporal urban traffic information in nature and are open to access. Their pixel colors represent traffic conditions on corresponding road segments. We propose a stacked convolutional autoencoder-based method to extract a low-dimension feature vector for each input. We compute and analyze the distances between vectors. The statistical results show different traffic patterns during given periods. With the actual data of Chongqing city, we compare the feature extraction performance between our proposed method and histogram. The result shows our proposed method can extract spatiotemporal features better. For the same data set, there is little difference in the number distribution of red pixels found in the statistics result of the histogram, while differences do exist in the results of our proposed method. We find the most fluctuated morning is on Friday; the most fluctuated evening is on Tuesday; and the most stable evening is on Wednesday. The distance captured by our method can represent the evolution of different traffic conditions during the morning and evening peak hours. Our proposed method provides managers with assistance to sense the dynamics of citywide traffic conditions in quantity.
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影响因子:
7.3
作者:
Wang, Yalin;Pan, Zhuofu;Gui, Weihua
通讯作者:
Gui, Weihua
DOI:
10.1145/3231740
发表时间:
2019
期刊:
ACM Transactions on Multimedia Computing, Communications, and Applications
影响因子:
--
作者:
Liu Xueliang;Wang Meng;Zha Zheng-Jun;Hong Richang
通讯作者:
Hong Richang
DOI:
10.3390/s17040818
发表时间:
2017-04-10
期刊:
Sensors (Basel, Switzerland)
影响因子:
--
作者:
Ma X;Dai Z;He Z;Ma J;Wang Y;Wang Y
通讯作者:
Wang Y
DOI:
10.1016/j.ins.2019.09.054
发表时间:
2020-02
期刊:
Inf. Sci.
影响因子:
--
作者:
Jiahui Liu;Xu Jin;Yuxiang Hong;Fan Liu;QiXiang Chen;Yalou Huang;MingMing Liu;Maoqiang Xie
通讯作者:
Jiahui Liu;Xu Jin;Yuxiang Hong;Fan Liu;QiXiang Chen;Yalou Huang;MingMing Liu;Maoqiang Xie
DOI:
10.1155/2020/6123896
发表时间:
2020-03
期刊:
Complex.
影响因子:
--
作者:
Yingsheng Su;Xin Liu;Xuejun Li
通讯作者:
Yingsheng Su;Xin Liu;Xuejun Li