Street Centerlines

Street Centerlines are polyline features representative of all official, active roadways throughout Omaha and Douglas County. It is primarily intended to serve 911, but has many other applications.道路中心线（Street Centerlines）是代表奥马哈市及道格拉斯县全域所有官方在册在用道路的折线要素（polyline features）。该数据集主要服务于911应急调度需求，同时具备诸多其他应用场景。