Андрей, помни, что это ОТКРЫТАЯ карта, и любой может внести свой вклад. Надеюсь, работа каждого пересматривается на точность, но я скорее сомневаюсь в этом! Грузовик

I have decided to enter the 911 locations signs as nodes to the trails they are assigned to. Their names will be alphanumeric, with a digraph or trigraph followed by one, two, three, or four digits. A few will be hyphenated.

An excellent article about 911 location signs can be found at https://www.trwd.com/911-signs-enhance-trail-user-safety/

I have geolocated at least 367 of them on trails shared by walkers and bicycle riders in Tarrant County in Texas and would like to add them as points on OSM. They are two-sided signs placed at eye level on square metal posts that show one’s location on the trail and hopefully help decrease the emergency response time when one calls a 911 dispatcher.

Unfortunately, they do not fit any of the descriptions for the key “marker” (i.e., “Shape and function of a physical spot indicating underground utility infrastructure, highway milestones or private property limits”). Physically they resemble most street signs that show the names of streets at a given intersection, and really have nothing to do with highways.