摘要
为明确铁路覆盖效果测算的基本原理和判定标准,提升测算质量和效率,对铁路光带覆盖理论与实践问题进行研究。在介绍铁路覆盖测算的基础上,阐述铁路光带覆盖理论基本概念,提出运用光带覆盖理论进行覆盖测算的主要流程,包括选定测算线路、生成覆盖光带、指定覆盖对象、覆盖效果测算等步骤,研究光带生成理论、权威统计口径、合理覆盖对象等问题,并提出路网覆盖行政区测算、路网覆盖经济社会发展指标测算、规划项目必要性分析、关键节点覆盖测算4个光带覆盖理论的主要应用方向。结合地理信息技术,提出基于缓冲区的铁路光带覆盖信息化自动测算方法,分析了GIS二次开发的基本算法流程和关键技术。实践证明,光带覆盖理论能够准确高效地实现高速铁路覆盖效果测算,已成为我国铁路覆盖评价的主要方法,相关思路可为基础设施覆盖效果评价提供参考。
To clarify the basic principle and criterion of railway coverage measurement and improve the measurement quality and efficiency,the theory and practice of railway light band coverage were studied.After introducing the railway coverage measurement,this paper expounded the basic concept of railway light band coverage theory.The paper put forward the main process of using light band coverage theory for coverage measurement,including the steps of selecting railway lines,generating coverage light band,specifying coverage targets,and calculating coverage effects.It studied issues such as light band generation theory,authoritative statistical caliber,and reasonable coverage targets.The paper also put forward four main application directions of the light band coverage theory:the railway coverage measurement of administrative districts,the railway coverage measurement of economic and social development indicators,the necessity analysis of planning projects,and the key node coverage measurement.Combined with GIS technology,this paper put forward an automatic method of railway light band coverage measurement based on buffer analysis and analyzed the basic algorithm flow and key technology of GIS secondary development.The practice has proved that the light band coverage theory can accurately and efficiently measure the coverage effect of high speed railway,and has become the main method of railway coverage evaluation in China.The relevant ideas can provide a reference for the evaluation of the infrastructure coverage effect.
作者
于剑
YU Jian(Planning Institute,China Railway Economic and Planning Research Institute Corporation Limited,Beijing 100038,China)
出处
《铁道运输与经济》
北大核心
2024年第7期143-150,共8页
Railway Transport and Economy
基金
中国国家铁路集团有限公司科技研究开发计划课题(P2022S016)。
关键词
铁路规划
光带覆盖
规划效果评价
地理信息技术
缓冲区分析
Railway Planning
Light Band Coverage
Planning Effect Evaluation
Geographic Information Technology
Buffer Analysis
