Canterbury-Bankstown Road Segment 3D May 2024
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Access APIMetadata Portal Metadata InformationContent TitleCanterbury-Bankstown 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 ContactSS-SDS@customerservice.nsw.gov.auData 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
访问API元数据门户元数据信息 内容标题：坎特伯雷-班克斯敦道路分段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（New South Wales, NSW）交通主题道路分段是一种线要素类，用于表示具备共同属性、以物理端点或同等级（同一平面）道路交叉口为终止点的道路区段。其点位由输入至地形数据库（Topographic Database）的方法确定，常见输入方法包括全球定位系统（GPS）采集、从地籍数据追踪获取或从正射校正影像中矢量化提取。 道路分段包含的数据类型包括：车辆轨迹（Vehicular Track）、步道（Pathway）、连续线（Continuity Line）、标准道路（Standard Road）、进出匝道（On-off Ramp）、双向车道（Dual Carriageway） 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 内容来源：数据提供方文件 文件类型：场景图层包（*.slpk） 属性说明：数据主题、分类及与其他数据集的关联关系：新南威尔士州基础空间数据框架（NSW Foundation Spatial Data Framework）交通主题 精度：本数据集与地块与房产数字数据集保持点位关联与对齐关系。地块与房产数据依据澳大利亚国家测绘委员会（National Mapping Council of Australia）1975年《地图精度标准》（Standards of Map Accuracy (1975)），通过数字化多种比例尺与精度的现有最佳地籍测绘成果获取，比例尺范围为1:500至1:250000。因此，90%的明确定义点位的坐标精度符合：在对应比例尺下的地图上偏差不超过0.5mm，即1:500比例尺对应实地0.25米、1:2000对应1米、1:4000对应2米、1:25000对应12.5米、1:50000对应25米、1:100000对应50米。当前正实施点位精度提升项目。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（Digital Elevation Model, DEM）。生成DEM所用数据的垂直精度为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）：世界大地测量系统1984（WGS84） 空间参考系统（Web服务）：EPSG:4326，等效WGS84的大地基准为GDA2020 空间范围： 内容溯源： 数据分类：未分类 数据访问政策：开放访问 数据质量与使用条款：知识共享（Creative Commons）协议 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（Department of Customer Services） 联系人：SS-SDS@customerservice.nsw.gov.au 数据聚合方：空间服务部 | 新南威尔士州客户服务部（Department of Customer Services） 数据分发方：空间服务部 | 新南威尔士州客户服务部（Department of Customer Services） 附加支持信息：本数据集符合开放地理空间联盟（Open Geospatial Consortium, OGC）标准，可兼容主流地理信息系统（GIS）平台使用。可根据客户端需求选择缓存或非缓存模式。TRIM编号：
