Cape Cod Building Footprints and Facilities 2014-2025

Overview This feature service provides detailed planimetric building footprint data derived from high-resolution aerial imagery primarily acquired in 2014 and updated with additional features from imagery captured in the spring of 2020 and 2025. The dataset covers parts of Cape Cod, Massachusetts, capturing structural features with a high horizontal positional accuracy suitable for 1:40,000 scale mapping and analysis. Feature Layer: Building Footprint The single feature layer, BuildingFootprint_z, contains accurate polygon representations of building structures and facilities across the region. Each building footprint is attributed with building height. The data was developed through professional photogrammetric methods under the supervision of a certified photogrammetrist, ensuring high reliability and precision. Imagery used includes true color and near-infrared bands with a ground sample distance of 7.5 cm, captured under optimal conditions to minimize shadows and atmospheric interference. Geographic Coverage This dataset specifically covers the Cape Cod region in Massachusetts, providing a valuable resource for regional planning, infrastructure management, and environmental studies. Use Cases Urban and regional planning Infrastructure and facility management Environmental impact assessments Emergency response and hazard analysis Historical change detection and development monitoring概述 本要素服务提供详细的平面建筑基底数据，其数据源主要为2014年获取的高分辨率航空影像，并通过2020年春季与2025年春季拍摄的影像补充更新了部分要素。本数据集覆盖马萨诸塞州科德角部分区域，提取的地物结构具备极高的水平位置精度，适用于1:40000比例尺的制图与分析工作。 要素图层：建筑基底 本数据集仅包含一个名为BuildingFootprint_z的要素图层，存储区域内各类建筑与设施的精准多边形要素。每个建筑基底均附带建筑高度属性。本数据通过专业摄影测量方法生成，并由注册摄影测量师全程监督，确保了极高的可靠性与精度。所用影像包含真彩色与近红外波段，地面采样距离（ground sample distance）为7.5厘米，拍摄于最优成像条件下，以最大程度减少阴影与大气干扰。 覆盖范围 本数据集精准覆盖马萨诸塞州科德角区域，可为区域规划、基础设施管理与环境研究提供极具价值的基础数据资源。 应用场景 1. 城市与区域规划 2. 基础设施与设施管理 3. 环境影响评价 4. 应急响应与灾害分析 5. 历史变化检测与开发动态监测