Passenger flow plays an important role in the indoor environment and energy consumption of airport terminals.In this paper,field investigations were carried out in four typical airport terminals with different scales ...Passenger flow plays an important role in the indoor environment and energy consumption of airport terminals.In this paper,field investigations were carried out in four typical airport terminals with different scales and operation states to reveal the characteristics of passenger flow.A prediction model is established to forecast passengers’distribution in the main areas of an airport terminal based on its flight arrangement.The results indicate the dislocation peaks of passenger numbers in these areas,due to the airport’s departure process.The peak time interval is about 30 min between the check-in hall and the security check area,and 60-80 min between the check-in hall and the departure hall.RD value(i.e.,the ratio of the actual passenger number in a certain area to the design value)is used to describe this peak shifting feature.When the annual passenger throughput of an airport terminal reaches or even exceeds its design value,the total peak RD value is normally 0.6-0.8.For the airport affected by COVID-19,the peak RD is only 0.2,which reflects the decline in terminal passenger numbers during the pandemic.This research provides useful insight into the characteristics of passenger flow in airport terminals,and is beneficial for their design and operation.展开更多
为提高公交客流计数系统的实时性及准确性,本文分别对车载信息终端的控制器局域网络(controller area network,CAN)总线及RS485线协议进行研究。通过实时采集车载信息终端数据并解析,获取公交实时运行信息。将公交车上的CAN总线和RS485...为提高公交客流计数系统的实时性及准确性,本文分别对车载信息终端的控制器局域网络(controller area network,CAN)总线及RS485线协议进行研究。通过实时采集车载信息终端数据并解析,获取公交实时运行信息。将公交车上的CAN总线和RS485线的信号通过串口转换器变为RS232信号,并基于Linux和Windows两种操作系统设计了两套数据分析系统,用户可以根据公交客流计数系统的基本需求,实时获取公交车的相关信息。实地测试结果表明,该设计能够实时精确的获取车辆的各项信息,达到预期目标,说明本文所采用的数据分析算法,准确率高、效率高、鲁棒性好,为公交客流计数系统提供了有效信息。该研究具有很好的实际应用价值。展开更多
基金The research described in this paper was supported by the National Natural Science Foundation of China(No.51878369)the National Key R&D Program of China(2018YFC0705001)+2 种基金Sichuan Science and Tech-nology Planning Project(2019YFSY0009)the China Postdoctoral Science Foundation(2021M701935),the Shuimu Tsinghua Scholar Pro-gram of Tsinghua University(2021SM001)Beijing Advanced Innovation Center For Future Urban Design,Beijing University Of Civil Engineering And Architecture.
文摘Passenger flow plays an important role in the indoor environment and energy consumption of airport terminals.In this paper,field investigations were carried out in four typical airport terminals with different scales and operation states to reveal the characteristics of passenger flow.A prediction model is established to forecast passengers’distribution in the main areas of an airport terminal based on its flight arrangement.The results indicate the dislocation peaks of passenger numbers in these areas,due to the airport’s departure process.The peak time interval is about 30 min between the check-in hall and the security check area,and 60-80 min between the check-in hall and the departure hall.RD value(i.e.,the ratio of the actual passenger number in a certain area to the design value)is used to describe this peak shifting feature.When the annual passenger throughput of an airport terminal reaches or even exceeds its design value,the total peak RD value is normally 0.6-0.8.For the airport affected by COVID-19,the peak RD is only 0.2,which reflects the decline in terminal passenger numbers during the pandemic.This research provides useful insight into the characteristics of passenger flow in airport terminals,and is beneficial for their design and operation.
文摘为提高公交客流计数系统的实时性及准确性,本文分别对车载信息终端的控制器局域网络(controller area network,CAN)总线及RS485线协议进行研究。通过实时采集车载信息终端数据并解析,获取公交实时运行信息。将公交车上的CAN总线和RS485线的信号通过串口转换器变为RS232信号,并基于Linux和Windows两种操作系统设计了两套数据分析系统,用户可以根据公交客流计数系统的基本需求,实时获取公交车的相关信息。实地测试结果表明,该设计能够实时精确的获取车辆的各项信息,达到预期目标,说明本文所采用的数据分析算法,准确率高、效率高、鲁棒性好,为公交客流计数系统提供了有效信息。该研究具有很好的实际应用价值。
