The objective of transportation network equilibrium analysis is to know about the distribution of traffic flow on network, for ensuring network state and providing theoretical reference for improvement design of transportation network. The paper analyzes route choice behavior based on travel time reliability under uncertainty, and establishes road choice model based on travel time reliability. The paper proposes several travel time definitions. And the road choice model under uncertainty is

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... ied to equilibrium distribution of transportation network to analyze the distribution of network flow of travel time reliability under different situations. And the paper analyzes the reality that several traffic modes exist on network, and takes accounts of the situations that traffic modes influence each other and don't influence each other on network. The paper analyzes route choice behavior of traveler under information condition. Combined with the factors of mixed traffic and reliability route choice behavior, the paper researches the traffic equilibrium partitioning models under two distributing criterions.