State Boundaries for NJ, PA, DE, and MD (line)

State boundaries 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. State boundaries in the DVRPC region have been adjusted to align with parcel data (where appropriate).本数据集涵盖宾夕法尼亚州、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州界数据。原始数据来源如下：宾夕法尼亚州（PA）数据取自宾州交通部（PennDOT），新泽西州（NJ）数据取自新泽西州信息技术办公室（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。本数据集的线要素图层已通过下述方法完成修正：因新泽西州的边界数据精度优异，故以新泽西州的边界覆盖宾夕法尼亚州的对应边界；因宾州交通部提供的数据精度高于ESRI数据源，故以宾夕法尼亚州的边界覆盖马里兰州的对应边界；因特拉华州最北端的弧形边界相较于宾州交通部数据及原始县级边界数据精度更优，故以特拉华州的边界覆盖宾夕法尼亚州与马里兰州的对应边界。此外，特拉华河谷规划委员会（DVRPC）辖区内的州界已根据地块数据在适宜场景下完成适配性调整。