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- W2334319074 abstract "The operational status of road networks in snowy conditions is quite different from that in general conditions, especially in the process of traffic assignment. Traffic assignment in snowy conditions of different snowfall degrees is studied in this paper, and the impedance function is modified by amending the three following parameters: time, speed and capacity. In snowy conditions, speed is modified by considering the change of road surface friction coefficient. The minimum safe headway is taken into consideration in the modification of capacity, and the modification of time is obtained by simulation. Based on the new impedance function and equilibrium assignment model, the traffic in the road network are assigned in the snowy conditions of different snowfall degrees. An example was also cited to prove that the algorithm is feasible. By comparing the assignment results in the general conditions and snowy conditions of different snowfall degrees in the example, changes of characteristic indexes of road networks like average travel speed and traffic flow in all grade of roads are given. The changing trend of the indexes is also presented. At last, some suggestions are put forward on the value of reserve capacity to enhance the environmental adaptability of road networks in snowy conditions." @default.
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- W2334319074 date "2009-07-23" @default.
- W2334319074 modified "2023-09-27" @default.
- W2334319074 title "Research on Dynamic Characteristics of Road Network in Snowy Conditions" @default.
- W2334319074 cites W1999867193 @default.
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- W2334319074 doi "https://doi.org/10.1061/41064(358)193" @default.
- W2334319074 hasPublicationYear "2009" @default.
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