基于摄影测量原理的道路交叉口机非冲突区域界定  

Study on the motor and non-motor mixed traffic conflict zone of urban intersections based on photogrammetry

作　　者：沈家军[1] 王炜[2] 

机构地区：[1]扬州大学建筑科学与工程学院,江苏扬州225009 [2]东南大学交通学院,南京210096

出　　处：《扬州大学学报（自然科学版）》2010年第1期75-78,共4页Journal of Yangzhou University：Natural Science Edition

基　　金：国家973计划项目(2006CB705501);国家"十一五"科技支撑计划项目(2006BAJ18B07)

摘　　要：为了界定城市道路交叉口混合交通流中机动车与非机动车冲突(简称机非冲突)区域,应用摄影测量原理建立非机动车实际坐标与图像坐标之间的转换关系.通过视频采集和人工调查的方法,选定4个已知标定点,获得其实际坐标和对应的图像坐标,从而求解转换矩阵中的8个未知参数.通过若干个连续的非机动车图像坐标求解出其对应的实际坐标,所有实际坐标描绘在交叉口区域,将非机动车较为集中的区域界定为非机动车行驶区域,该区域与机动车行驶区域的交叉部分则为机非冲突区域.由于该方法所需的数据具有非接触调查的特点,研究结果较为精确,因此可推广至交通工程其他研究领域.In order to define motor and non-motor mixed traffic conflict zone of urban intersection,the conversion relation between global coordinate and image coordinate was developed by photo- gramrnetry. Through selecting four calibration points, obtaining their global coordinates and corresponding image coordinates, eight unknown parameters in conversion matrix were solved. The traveling zone of non-motors was depicted by obtaining a series of continuous global coordinates and dotting all of them. The crossing zone between traveling zone of non-motors and that of motors can be defined as motors and non-motors conflicting zone. Because the data of research are obtained by non-contact investigation method, the results are relatively precise, and can be generalized to other research fields in traffic engineering.

关 键 词：城市道路交叉口 混合交通 机非冲突区域 摄影测量 

分 类 号：U491.23[交通运输工程—交通运输规划与管理]