Zoning districts, Ipswich Watershed, Parker Watershed, Plum Island Ecosystem, Massachusetts - vector

The MassGIS zoning datalayer represents the boundaries of municipal zoning districts. Because zoning is established at the town level, there is no standard district classification across the state. While districts in different towns may have similar or even identical names, their definitions are often quite different. Generalized codes have been added to make these data useful for regional display. A related table contains detailed information about the districts such as setbacks or text descriptions from each town’s zoning bylaws. Data are available for all communities. (Only primary district information is available for the City of Boston, not additional infomation for its bylaws.) MassGIS stores the data in a statewide ArcSDE layer named ZONING_POLY. Zoning district boundaries change frequently and MassGIS currently has no formal process in place to regularly update these coverages. These data should therefore be used for regional analysis only and not as official zoning maps. The town’s own official zoning map and current copy of the by-law should be considered as the final word on zoning boundary questions or issues. In August, 2007, data were updated for these 93 towns: Adams, Agawam, Amherst, Aquinnah, Ashburnham, Ashby, Athol, Ayer, Belchertown, Billerica, Bourne, Brewster, Chatham, Chelmsford, Cheshire, Chester, Chesterfield, Chicopee, Chilmark, Clarksburg, Clinton, Cummington, Dalton, Dennis, East Longmeadow, Edgartown, Egremont, Falmouth, Fitchburg, Gardner, Georgetown, Gosnold, Granby, Great Barrington, Groton, Hadley, Hampden, Harvard, Hatfield, Hubbardston, Huntington, Lancaster, Lanesborough, Lawrence, Lee, Lenox, Leominster, Lowell, Ludlow, Lunenburg, Mashpee, Monson, Monterey, New Ashford, North Adams, Northampton, Oak Bluffs, Otis, Palmer, Petersham, Phillipston, Pittsfield, Richmond, Rowley, Royalston, Russell, Salisbury, Sandisfield, Sheffield, Shirley, South Hadley, Southampton, Southwick, Sterling, Stockbridge, Templeton, Tisbury, Townsend, Truro, Ware, Washington, Wellfleet, West Springfield, West Stockbridge, West Tisbury, Westfield, Westminster, Wilbraham, Williamsburg, Williamstown, Winchendon, Worthington, and Yarmouth. Note: Complete metadata is available within the downloaded zip file. This metadata can be viewed with ESRI ArcGIS software, and can be exported to FGDC and ISO metadata formats.马萨诸塞州地理信息系统（MassGIS）区划数据层用于展示市政区划片区的边界范围。由于区划由镇级政府主导制定，全州范围内并无统一的片区分类标准。尽管不同城镇的区划片区可能拥有相似甚至完全相同的名称，但其定义往往存在显著差异。为便于区域可视化展示，数据已添加通用编码。配套关联表包含各片区的详细信息，例如退距要求或各城镇区划条例中的文字说明。 全州所有社区均可获取该数据，但波士顿市仅提供基础片区信息，不包含其区划条例的附加细节。MassGIS将数据存储于名为ZONING_POLY的全州范围ArcSDE图层中。区划片区边界频繁变更，而MassGIS目前暂无正式流程定期更新此类数据集。因此，此类数据仅可用于区域分析，不得作为官方区划地图使用。关于区划边界的相关疑问或争议，应以各城镇官方发布的区划地图及最新版区划条例文本为准。 2007年8月，以下93个城镇的数据已完成更新：亚当斯、阿格沃姆、阿默斯特、阿奎纳、阿什伯纳姆、阿什比、阿瑟尔、艾尔、贝尔彻敦、比勒里卡、伯恩、布鲁斯特、查塔姆、切尔姆斯福德、切希尔、切斯特、切斯特菲尔德、奇科皮、奇尔马克、克拉克伯格、克林顿、卡明顿、多尔蒂、丹尼斯、东朗梅多、埃德加敦、埃格蒙特、法尔茅斯、菲奇堡、加德纳、乔治敦、戈斯诺尔德、格兰比、大巴灵顿、格罗顿、哈德利、汉普登、哈佛、哈特菲尔德、哈伯德斯顿、亨廷顿、兰卡斯特、莱恩斯伯勒、劳伦斯、李、伦诺克斯、利明斯特、洛厄尔、勒德洛、卢嫩堡、马什皮、门森、蒙特雷、新阿什福德、北亚当斯、北安普顿、奥克布拉夫斯、奥蒂斯、帕尔默、彼得舍姆、菲利普斯顿、皮茨菲尔德、里奇蒙、罗利、罗亚尔斯顿、拉塞尔、索尔兹伯里、桑迪斯菲尔德、谢菲尔德、雪莉、南哈德利、南安普敦、南维克、斯特林、斯托克布里奇、坦普尔顿、蒂斯伯里、汤森、特鲁罗、韦尔、华盛顿、韦尔弗利特、西斯普林菲尔德、西斯托克布里奇、西蒂斯伯里、韦斯特菲尔德、威斯敏斯特、威尔布拉汉、威廉斯堡、威廉斯敦、温琴登、沃辛顿和亚茅斯。 注：完整元数据可在下载的压缩包中获取。该元数据可通过ESRI ArcGIS软件查看，并可导出为联邦地理数据委员会（FGDC）及国际标准化组织（ISO）元数据格式。