ESM1: Tabulated clearance envelopes (CIN/GLI/GNI) and 2D cross-sections for depot-scale railway clearance verification

This record provides the data package supporting the manuscript “Scan-to-decision workflow for clearance verification in light-rail depots: deriving obstacle-installation gauges from track tolerances”. The package contains (i) tabulated 2D perimeter points of the CIN, GLI, and GNI envelopes as a function of curvature radius and turn direction; (ii) representative transverse cross-sections extracted from terrestrial laser scanning (TLS) point clouds (including COMPLIANT, INTERMEDIATE and FULL examples); (iii) an obstacle-point subset with obstacle identifiers and families for obstacle-level clearance checking; and (iv) derived outputs (CSV manifests and plots) that reproduce the reported clearance classifications and figures. Coordinate convention: X is lateral (positive to the right in the direction of travel); Y is vertical with Y=0 at the GLI reference point; all units are meters. Contents: envelopes/: CIN/GLI/GNI tabulations (Excel + long-form CSV export) sections/: cross-sections (X,Y) with PK, radius and turn metadata obstacles/: obstacle-point subset with obstacle_id, family, PK and (X,Y) points derived/: signed-distance minima and FULL/INTERMEDIATE/COMPLIANT classification manifests, plus overlay plots How to reproduce: Use the companion reference implementation (ESM2) to recompute signed-distance minima and regenerate plots/CSVs from this dataset.本数据集为学术论文《轻轨车辆段清障验证的扫描至决策工作流：基于轨道公差推导障碍物安装限界》（原标题："Scan-to-decision workflow for clearance verification in light-rail depots: deriving obstacle-installation gauges from track tolerances"）配套提供支撑数据包。本数据包包含以下内容：(i) 以曲率半径与转弯方向为变量的CIN、GLI、GNI包络线二维周界点制表数据；(ii) 从地面激光扫描（Terrestrial Laser Scanning, TLS）点云中提取的代表性横断面，包含合规型（COMPLIANT）、过渡型（INTERMEDIATE）与全型（FULL）三类示例；(iii) 带有障碍物标识符与类别的障碍物点子集，用于层级化清障验证；(iv) 用于复现论文所述清障分类结果与配图的衍生输出文件，包括CSV清单与绘图文件。 坐标约定：X轴为横向（沿运行方向向右为正）；Y轴为竖向，且GLI参考点处Y=0；所有物理量单位均为米。 数据目录： envelopes/：CIN、GLI、GNI包络线制表文件（含Excel格式与长格式CSV导出文件） sections/：包含桩号（PK）、曲率半径与转弯方向元数据的(X,Y)格式横断面数据 obstacles/：带有obstacle_id、障碍物类别、桩号与(X,Y)坐标点的障碍物点子集 derived/：包含带符号距离最小值、全型/过渡型/合规型分类清单以及叠加绘图文件的衍生数据集 复现方法：可通过配套参考实现（ESM2）重新计算带符号距离最小值，并基于本数据集重新生成绘图文件与CSV文件。