BwH Habitat Block Connectors

The Block Connector line segments represent stretches of roads that are at least 500 ft. long that separate undeveloped blocks and are the only fragmenting feature of the undeveloped blocks at these locations -- see the undeveloped habitat blocks datasets for details. The are coded for whether they intersect a Beginning with Habitat mapped riparian area and/or are withing 50 feet of a non-open-water wetland as mapped by the National Wetlands Inventory. Cartographic Highlight polygon is designed for visualization only. This layer does not reflect model outputs. Some connector segments connect to a small (<10 ac.) undeveloped habitat block. Undeveloped habitat blocks under 10 acres are not included in web service layers. Connector segments represent stretches of roads that are the least developed stretches of roads between undeveloped blocks of habitat. Roads used in this analysis were a subset of MaineDOT Public Roads (Maine Office of GIS: 2023), E911 Roads Features (Maine Office of GIS: 2023), and NHDOT Roads (New Hampshire Granit 2023). The primary roads dataset utilized was the MDOT Public Roads dataset -- important: Only non-highway roads qualify as connectors (because of the outsized fragmenting nature of divided highways). Therefore, only MDOT roads with a FedFuncClas not equal to 'Interstate' or 'Other Freeway or Expressway' are included as potential connector segments. The E911 roads were used as a supplement to the MDOT public roads - mainly as the best representation of private roads available - only E911 roads with RdClass equal to 'Private', 'Local', or 'Gated' that didn't overlap MDOT public road lines were used in the undeveloped blocks analysis and therefore, this Block Connector Segment product.区块连接线线段代表长度至少500英尺（ft.）、分隔未开发栖息地区块且为该位置未开发区块唯一碎片化因素的道路路段——详细信息请参阅未开发栖息地区块数据集。这些线段已被编码，以标记其是否与《始于栖息地》（Beginning with Habitat）项目绘制的河岸带（riparian area）相交，或是否位于美国国家湿地清单（National Wetlands Inventory）所绘制的非开阔水域湿地周边50英尺范围内。制图高亮多边形仅用于可视化展示，本图层不反映任何模型输出结果。部分连接线线段连接至面积小于10英亩（ac.）的未开发栖息地区块。面积小于10英亩的未开发栖息地区块未被纳入网络服务图层。区块连接线线段代表分隔未开发栖息地区块的道路中受开发程度最低的路段。本分析所用道路数据集为缅因州交通部（MaineDOT）公共道路（缅因州地理信息办公室：2023年）、E911道路要素（缅因州地理信息办公室：2023年）以及新罕布什尔州交通部（NHDOT）道路（新罕布什尔州Granit 2023年数据集）的子集。本次分析采用的核心道路数据集为缅因州交通部公共道路数据集——重要提示：仅非高速公路类道路可作为连接线（原因是分隔式高速公路的碎片化影响程度过高）。因此，仅联邦功能分类（FedFuncClas）不为"州际公路"或"其他免费高速公路/快速路"的缅因州交通部道路，才可被纳入潜在连接线线段范畴。E911道路数据集作为缅因州交通部公共道路的补充，主要用于覆盖现有数据集中缺失的私有道路：仅选取道路分类（RdClass）为"私有"、"本地"或"封闭式"，且未与缅因州交通部公共道路线段重叠的E911道路，用于未开发栖息地区块分析及本区块连接线线段产品制作。