County Boundaries (line)

County boundaries (linear features) for Pennsylvania, New Jersey, Delaware, Maryland, New York, Connecticut, and the District of Columbia. Original Sources: PA - PennDOT NJ - NJOIT DE - DE Geological Survey MD, NY, CT, DC - ESRI Linework has been adjusted using the following methodology. NJ's boundaries overrode PA, since NJ's were highly accurate. PA overrode MD since PennDOT's were more accurate than ESRI's, and DE overrode PA & MD, since the "arc" of northernmost DE was a bit more accurate than PennDOT's or our original county boundaries. County boundaries in the DVRPC region have been adjusted to align with parcel data (where appropriate). NOTE: Use the following definition query if only need one county in DVRPC Region "Co_Name" LIKE '%Bucks%'宾夕法尼亚州、新泽西州、特拉华州、马里兰州、纽约州、康涅狄格州及哥伦比亚特区的县级边界（线状要素（linear features））。原始数据来源如下：宾夕法尼亚州（PA）数据取自宾夕法尼亚州交通部（PennDOT）；新泽西州（NJ）数据取自新泽西州信息与技术办公室（NJOIT）；特拉华州（DE）数据取自特拉华州地质调查局；马里兰州（MD）、纽约州（NY）、康涅狄格州（CT）及哥伦比亚特区（DC）数据取自ESRI。本次数据集对线状要素采用如下方法进行修正：因新泽西州的边界数据精度极高，故以新泽西州的边界数据覆盖宾夕法尼亚州的对应边界；因宾夕法尼亚州交通部的边界数据精度优于ESRI数据源，故以宾夕法尼亚州的数据覆盖马里兰州的对应边界；因特拉华州最北部的弧形边界数据相较宾夕法尼亚州交通部及原始县级边界数据精度更优，故以特拉华州的数据覆盖宾夕法尼亚州与马里兰州的对应边界。DVRPC区域内的县级边界已根据地块数据（适用场景下）完成对齐调整。备注：若仅需获取DVRPC区域内单个县的要素，请使用以下定义查询："Co_Name" LIKE '%Bucks%'