**AUTHORS:**Chunxue Zhao

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**ABSTRACT:**
The Braess paradox is an important phenomenon of traffic networks, and the robustness is a characteristic that measures the network system performance under interference. Study of traffic network paradox and robustness is an important topic of traffic assignment. In this paper, we investigate the paradox and robustness of dynamic traffic network, in which, the influence of all adjacent links on the link congestion is considered. In addition, we discuss the influence of other links on whether the adding link works under dynamic system optimal, etc. The results show the shifty role of other links, which imply we should adjust the interaction between links rationally with traffic situations changing

**KEYWORDS:**
traffic network, dynamic user optimal, dynamic system optimal, Braess’ paradox, robustness

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