The Washington Area Bicyclist Association reports mile markers will be placed on the Metropolitan Branch Trail. From the article:

Over the past few weeks, a series of troubling incidents on the Metropolitan Branch Trail have again raised questions of user safety on this popular urban trail. Though counter data show an average of 1200 trail users each day since April, recent incidents and the law enforcement response to them have justifiably shaken the confidence of regular trail users.

Two weeks ago, WABA sat down with leadership from District Department of Transportation (DDOT), Metropolitan Police Department (MPD), Office of Uniform Communication (OUC), and DC Homeland Security and Emergency Management Agency (HSEMA) to address these concerns. As a result, DDOT will install mile markers throughout the trail backed by changes to the 911 computer dispatch system to ensure a timely and direct law enforcement response to 911 calls.