Shellharbour Road Segment 3D May 2024

Access APIMetadata Portal Metadata InformationContent Title Shellharbour Road Segment 3D May 2024Content TypeScene Layer/Scene Layer PackageDescriptionNSW Transport Theme Road Segment is a line feature class representing a section of road having common attributes and terminating at its physical and or at an intersection with another road at the same grade (same level). Its position is determined by the methodology used to input into the Topographic Database. Common methods of input include GPS, traced from the cadastre or traced from an orthorectified image.Data included in Road Segments includes:Vehicular TrackPathwayContinuity LineStandard Road On-off RampDual CarriagewayInitial Publication Date01/05/2024Data Currency01/05/2024Data Update FrequencyOtherContent SourceData provider filesFile TypeScene Layer Package (*.slpk)AttributionData Theme, Classification or Relationship to other DatasetsTransport Theme of the NSW Foundation Spatial Data FrameworkAccuracyThe dataset maintains a positional relationship to, and alignment with, the Lot and Property digital datasets. The Lot and Property data was captured by digitising the best available cadastral mapping at a variety of scales and accuracies, ranging from 1:500 to 1:250 000 according to the National Mapping Council of Australia, Standards of Map Accuracy (1975). Therefore, the position of the feature instance will be within 0.5mm at the map scale for 90% of the well-defined points. That is 1:500 = 0.25m, 1:2000 = 1m, 1:4000 = 2m, 1:25000 = 12.5m, 1:50000 = 25m and 1:00000 = 50m. A program of positional upgrade (accuracy improvement) is currently underway. Feature heights have been derived from LiDAR elevation sources including 1m and 2m DEMS. The data used to create the DEMs have an accuracy of 0.3m (95% Confidence Interval) vertical and 0.8m (95% Confidence Interval) horizontal. The features vertical accuracy is also a function of its horizon.Spatial Reference System (dataset)WGS84Spatial Reference System (web service)EPSG:4326WGS84 Equivalent ToGDA2020Spatial ExtentContent LineageData ClassificationUnclassifiedData Access PolicyOpenData QualityTerms and ConditionsCreative CommonStandard and SpecificationData CustodianSpatial Services | Department of Customer ServicesPoint of [e-mail] AggregatorSpatial Services | Department of Customer ServicesData DistributorSpatial Services | Department of Customer ServicesAdditional Supporting InformationOpen Geospatial Consortium (OGC) implemented and compatible for the consumption by common GIS platforms. Available as either cache or non-cache, depending on client use or requirement.TRIM Number

APIMetadata门户元数据信息
内容标题：谢尔哈伯路路段3D 2024年5月
内容类型：场景图层/场景图层包（Scene Layer/Scene Layer Package）
描述：新南威尔士州交通主题道路路段（NSW Transport Theme Road Segment）为线状要素类，用于表示具有共同属性、以实体端点或同等级（同一平面）道路交叉口为终止点的道路区段。其空间位置通过录入地形数据库（Topographic Database）的相关方法确定，常用录入方式包括全球定位系统（GPS）采集、从地籍数据追踪获取或从正射影像（orthorectified image）中提取。
道路路段包含的数据类型如下：车辆行驶轨迹、步道、连续线、标准道路、进出匝道、双向车道
首次发布日期：2024年5月1日
数据现势性：2024年5月1日
数据更新频率：其他
数据来源：数据提供方文件
文件类型：场景图层包（*.slpk）
归属信息：隶属于新南威尔士州基础空间数据框架（NSW Foundation Spatial Data Framework）的交通主题
精度：本数据集与地块与房产数字数据集（Lot and Property digital datasets）保持空间位置关联与对齐。地块与房产数据通过数字化最佳可用地籍制图获取，制图比例尺与精度范围为1:500至1:250000，符合澳大利亚国家测绘委员会1975年发布的《地图精度标准》（National Mapping Council of Australia, Standards of Map Accuracy (1975)）。因此，对于90%的明确特征点，其空间位置误差在对应比例尺下不超过0.5毫米，具体换算为：1:500比例尺对应0.25米、1:2000比例尺对应1米、1:4000比例尺对应2米、1:25000比例尺对应12.5米、1:50000比例尺对应25米、1:100000比例尺对应50米。目前正在实施空间位置精度提升项目。要素高程信息源自激光雷达（LiDAR）高程数据源，包括1米与2米分辨率的数字高程模型（DEM）。用于生成数字高程模型的数据源垂直精度为0.3米（95%置信区间），水平精度为0.8米（95%置信区间），要素的垂直精度同时受其视野范围影响
空间参考系统（数据集）：WGS84
空间参考系统（Web服务）：EPSG:4326，等效于WGS84与GDA2020
空间范围
数据溯源
数据分类：非机密
数据访问策略：开放
数据质量 条款与条件：知识共享（Creative Commons）
标准与规范
数据保管方：空间服务部 | 新南威尔士州客户服务部（Spatial Services | Department of Customer Services）
联系人邮箱：[e-mail]
数据聚合方：空间服务部 | 新南威尔士州客户服务部
数据分发方：空间服务部 | 新南威尔士州客户服务部
附加支持信息：本数据集符合开放地理空间联盟（OGC）标准，可兼容通用地理信息系统（GIS）平台使用；可根据用户使用需求以缓存或非缓存模式提供。TRIM编号