Vacant and Developed Land 2006
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The undeveloped land layer represents lands appearing unimproved on aerial photography, without regard to developability and accessibility. On partially developed parcels, only undeveloped areas 1/2 acre or larger are included. Metro's Vacant Land Definitions Every tax lot is determined to be vacant, partially vacant, or developed. Vacant tax lots are those that have no building, improvements or identifiable land use. Developed lots must have improvements and specific land uses. For example, a paved parking lot is developed but an unpaved lot where trucks are parked is vacant. Lots under site development show building activity, but development is incomplete and they are considered vacant. If a developed tax lot has 1/2 acre (20,000-sq. ft.) or greater portion that is vacant, the lot is considered to be partially vacant and partially developed. The vacant portion is added to the vacant land database. Parks and open spaces are treated as developed. During the assessment of each tax lot, no consideration is given to constrained land, suitability for building, or to redevelopment potential. Date of last data update: 2006-07-01 This is official RLIS data. Contact Person: Al Mowbray al.mowbray@oregonmetro.gov Emailing the contact person listed above is the fastest way to get a response, but if you prefer to call, you can contact the Data Resource Center at 503-797-1742 and someone will return your call as soon as they are able. RLIS Metadata Viewer: https://gis.oregonmetro.gov/rlis-metadata/#/details/2923 Terms of Use: https://rlisdiscovery.oregonmetro.gov/pages/open-database-license
未开发土地图层指代航空摄影中呈现为未改良状态的土地，无需考虑其可开发性与可达性。对于部分开发地块，仅纳入面积不小于0.5英亩的未开发区域。 都会区（Metro）空置土地定义标准：所有计税地块均被划分为空置、部分空置或已开发三类。空置计税地块指无建筑物、改良设施或可识别土地用途的地块；已开发地块需具备改良设施与明确土地用途，例如铺装停车场属于已开发地块，而停放卡车的未铺装场地则属于空置地块。处于场地开发阶段的地块虽存在建筑施工活动，但开发尚未完成，因此仍被归类为空置地块。若某已开发计税地块存在≥0.5英亩（约20000平方英尺）的空置区域，则该地块被认定为部分空置且部分开发，其空置区域将被纳入空置土地数据库。 公园与开放空间被视为已开发土地。在对每块计税地块进行评估时，无需考虑受限土地、建筑适宜性或再开发潜力等因素。 最新数据更新日期：2006年7月1日 本数据集为官方区域土地信息系统（Regional Land Information System，RLIS）数据。 联系人：阿尔·莫布雷（Al Mowbray），电子邮箱：al.mowbray@oregonmetro.gov 通过上述联系人发送电子邮件是获得回复的最快途径；若您希望致电咨询，可拨打数据资源中心（Data Resource Center）电话503-797-1742，工作人员将尽快回电。 RLIS元数据查看器：https://gis.oregonmetro.gov/rlis-metadata/#/details/2923 使用条款：https://rlisdiscovery.oregonmetro.gov/pages/open-database-license
