Tamworth Road Segment 3D May 2024

Access APIMetadata Portal Metadata InformationContent TitleTamworth 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

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内容标题：塔姆沃思路段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是一类线要素类，代表具有共同属性、终止于物理端点或同等级（同一水平面）与其他道路相交的道路区段。其点位由录入地形数据库（Topographic Database）所采用的方法确定，常见录入方式包括全球定位系统（Global Positioning System, GPS）采集、从地籍数据追踪或从正射校正影像（orthorectified image）追踪。
道路路段包含的数据类型包括：
- 车辆通行道（Vehicular Track）
- 步道（Pathway）
- 连续线（Continuity Line）
- 标准道路（Standard Road）
- 进出口匝道（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）
归因说明：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）交通主题数据集
精度说明：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。地块与房产数据通过数字化不同比例尺与精度的现有最佳地籍测绘数据采集而成，比例尺范围为1:500至1:250000，符合澳大利亚国家测绘委员会《1975年地图精度标准》（National Mapping Council of Australia, Standards of Map Accuracy (1975)）。因此，90%的明确特征点位在对应地图比例尺下的位置误差不超过0.5毫米：即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。当前正在实施点位精度提升计划。特征高程源自激光雷达（Light Detection and Ranging, LiDAR）高程源，包括1米与2米分辨率的数字高程模型（Digital Elevation Model, DEM）。用于生成数字高程模型的数据的垂直精度为0.3米（95%置信区间（Confidence Interval）），水平精度为0.8米（95%置信区间）。特征的垂直精度同时受其视野范围影响。
数据集空间参考系统：WGS84坐标系
Web服务空间参考系统：EPSG:4326
WGS84等效坐标系：GDA2020
空间范围：无
数据谱系：无
数据分类：非保密
数据访问政策：开放
数据质量及条款条件：知识共享（Creative Common）标准及规范
数据保管方：空间服务部 | 新南威尔士州客户服务部
联系人：[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（Open Geospatial Consortium, OGC）标准，可兼容主流地理信息系统（Geographic Information System, GIS）平台使用。可根据客户使用场景或需求，以缓存或非缓存形式提供。
TRIM编号：无