基于GIS动态分段技术的铁路货运量可视化表达  

Rail freight volume visualization based on dynamic segmentation technology

作　　者：任永强[1] 

机构地区：[1]中国铁道科学研究院运输及经济研究所,北京100081

出　　处：《铁路计算机应用》2014年第5期38-40,共3页Railway Computer Application

摘　　要：在GIS动态分段基本原理的基础上,将铁路车站的里程作为路径系统测量M值的校准参考依据,部分铁路货运量(用装车数表征货运量的大小)作为线事件引入到铁路网的货流径路系统中,实现了铁路货运量的可视化表达,并根据发站和到站自动沿线绘制货运方向箭头,为铁路货运运输分析和研究决策提供技术支持。Based on the analysis of the basic principles of GIS dynamic segmentation,it was put the mileage of railway station as calibration reference values of M for path measurement system.Part of the railway freight volume （characterized by the number of loading cargo） was used as the event into the railway path system to implement a visual representation of railway freight volume.According to start station and end station automatically,the direction arrow of freight transport along the railway line was drawn.The paper provided a scientific support to make decision for the railway transportation analysis and research.

关 键 词：动态分段 货运量 可视化 

分 类 号：U294[交通运输工程—交通运输规划与管理] TP39[交通运输工程—道路与铁道工程]