Lake Macquarie Road Segment 3D May 2024

Access APIMetadata Portal Metadata InformationContent TitleLake Macquarie 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

API元数据门户访问：元数据信息
内容标题：莱克马奎尔路段3D 2024年5月
内容类型：场景图层/场景图层包（Scene Layer Package）
描述：新南威尔士州（NSW）交通主题下的路段为线状要素类，用于表示具备共同属性、以物理端点或同等级（同水平面）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的方法确定，常见录入方式包括全球定位系统（GPS）采集、从地籍数据描摹或从正射影像（orthorectified image）描摹获取。
路段包含的数据类型包括：机动车道、步道、连续线、标准道路出入口匝道、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
内容来源：数据提供方文件
文件类型：场景图层包（Scene Layer Package，*.slpk）
归属说明：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交通主题数据集。
精度说明：本数据集与宗地与房产数字数据集保持空间位置关联与对齐。宗地与房产数据通过数字化现有最佳地籍测绘成果获取，比例尺与精度范围依据澳大利亚国家测绘委员会1975年《地图精度标准》，覆盖1:500至1:250000。据此，90%的明确定义要素点的位置误差在对应比例尺下的0.5毫米范围内，具体换算为：1:500比例尺对应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，1:00000对应50米。当前正开展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（DEMs）。用于生成DEMs的数据精度为：垂直方向95%置信区间内0.3米，水平方向95%置信区间内0.8米。要素的垂直精度同样受其所处视野范围影响。
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
WGS84等效基准：GDA2020
空间范围：无明确标注
内容谱系：无明确标注
数据分类：非保密
数据访问政策：开放获取
数据质量条款与条件：符合知识共享（Creative Commons）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（Open Geospatial Consortium, OGC）标准，兼容主流地理信息系统（GIS）平台使用，可根据客户需求以缓存或非缓存模式提供。
TRIM编号：无明确标注