Montgomery County Site Structure Address Points

This layer shows Site Structure Address (SSAP) points for Montgomery County, Pennsylvania. Site Structure Address Points (SSAP) represent a physical address of a structure. This address may differ from a mailing address and even a property parcel address. The layer contains address points, trail mile markers and highway mile markers which are needed for 911 location services. The data contains NG911 fields as required by the Commonwealth's NG911 data model used for ECRF (Emergency Call Routing Function). The data also contains fields required by the county's 911 emergency dispatch system.本图层包含宾夕法尼亚州蒙哥马利县的场地结构地址（Site Structure Address, SSAP）点位数据。场地结构地址点位（SSAP）指代建筑物的实体物理地址，该地址可能与邮寄地址乃至地产宗地地址有所不同。本图层涵盖用于911定位服务的地址点位、步道里程标及公路里程标。数据包含宾夕法尼亚州用于紧急呼叫路由功能（Emergency Call Routing Function, ECRF）的下一代911（Next Generation 911, NG911）数据模型所要求的NG911字段，同时也囊括该县911应急调度系统所需的各类字段。