积分后，得到了匝道单车道流量与匝道连接处速度、密度和流量的理论关系模型。
The relationships between traffic parameters, such as the ramp flow, speed, density and mainline flow at the ramp junction, are established by mapping time-space plane to speed-density plane.
结合入口匝道的特点，给出了入口匝道连接处交通流参数之间关系的理论模型以及入口匝道的通行能力计算模型。
Given are theoretical model for the relationship among traffic flow parameters of the junction at on-ramps and calculation model for the capacity of on-ramps, based on the characteristics of on-ramps.
结合匝道的特点，给出了出入口匝道连接处交通流参数之间关系的理论模型以及出入口匝道的通行能力计算模型。
Considering ramp characteristics, this paper educed the relationships between traffic parameters and model of capacity calculation for ramp of expressway.
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