Newcastle Road Segment 3D May 2024
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Access APIMetadata Portal Metadata InformationContent TitleNewcastle 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
APIMetadata门户元数据信息
内容标题:2024年5月纽卡斯尔路段3D模型
内容类型:场景图层/场景图层包
描述:新南威尔士州(New South Wales,简称NSW)交通主题下的路段(Road Segment)为一类线状要素类,用于表征具有共同属性、终止于实体端点或同等级(同一平面)与其他道路交叉口的道路区段。其空间位置通过输入至地形数据库的方法确定,常见采集方式包括全球定位系统(GPS)采集、从地籍数据矢量化描摹或从正射影像中提取。
路段数据集包含的要素类型如下:
车辆通行轨迹、步道、连续线、标准道路出入口匝道、双向分隔车道
初始发布日期: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)
属性说明:数据主题及与其他数据集的关联分类:属于新南威尔士州基础空间数据框架的交通主题
精度说明:本数据集与地块与房产数字数据集保持位置关联与对齐关系。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,比例尺范围覆盖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》。因此,90%的明确特征点的位置误差在对应地图比例尺下的0.5毫米范围内,具体换算如下: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、1:100000对应50米。当前正实施位置精度提升计划。
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DEM的数据垂直精度为95%置信区间内0.3米,水平精度为95%置信区间内0.8米。要素的垂直精度同时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):欧洲石油测绘组4326(EPSG:4326),WGS84等效于GDA2020
空间范围:无明确说明
内容谱系:无明确说明
数据分类:非机密
数据访问政策:公开
数据质量:无明确说明
条款与条件:知识共享(Creative Commons)
标准与规范:无明确说明
数据保管方:空间服务部 | 客户服务厅
联系人:SS-SDS@customerservice.nsw.gov.au
数据聚合方:空间服务部 | 客户服务厅
数据分发方:空间服务部 | 客户服务厅
附加支持信息:本数据集符合开放地理空间联盟(OGC)规范,可兼容主流地理信息系统(GIS)平台调用,支持根据客户使用需求选择缓存或非缓存模式。
TRIM编号:无明确说明
提供机构:
data.nsw.gov.au



