Abstract: In order to determine the scale of large-scale public parking lots, the factors affecting the scale of parking lots and the calculation methods of reasonable scale of public parking lots were studied. Based on the expected scale model of public parking lots calculated by the parking generation rate method, a reasonable scale calculation constraint model of the large public parking lot was proposed, which considered the traffic capacity of the entrance and exit of the parking lot and the constraints of the surrounding road network. Based on the measured data, the parameters of the parking channel capacity model were calibrated. An application example was used to demonstrate how to use the constraint model to calculate the scale of parking lot, and was compared with the expectation model based on the parking rate method. Finally, the calculation results of the number of entrance and exit lanes of parking lots under different scales were given. The obtained results were compared with those of the corresponding specifications, and the refinement characteristics of the constraint model were further illustrated.

Key words: traffic and transportation engineering, public parking lots, reasonable scale, parking generation rate method, access roads

摘要： 为确定大型公共停车场规模，研究了停车场规模影响因素和公共停车场合理规模计算方法。以停车生成率法计算公共停车场期望规模模型为基础，考虑了停车场进出口的通行能力和周围路网的制约，提出了大型公共停车场合理规模计算约束模型；基于实测数据，对停车场通道通行能力模型参数进行了标定。应用算例的方式，演示了如何应用约束模型计算停车场规模，并与基于停车率法的期望模型进行了比较；最后，给出了不同规模下停车场进出口车道数量计算结果，并将所得结果与相应规范进行了比较，进一步说明了约束模型的精细化特点。

关键词: 交通运输工程, 公共停车场, 合理规模, 停车生成率法, 进出通道