The E Line began service on February 15, 2014,[3] running from Aurora Village Transit Center in Shoreline to Pioneer Square in Downtown Seattle.

[7] King County Metro honors McLaughlin yearly on the Friday after Thanksgiving, when buses pull over and briefly pause service in his memory.

In early 2013 King County Metro began construction on new enhanced bus stops, new bus stations and making upgrades to traffic signals along Aurora Ave N.[13] Service on the RapidRide E Line was scheduled to start in Fall 2013 but the opening was delayed until February 15, 2014, to give crews more time to finish construction.

[15][self-published source] King County Metro planned to begin service on the RapidRide E Line in September 2013, but the opening was pushed back several months to February 2014 due to delays in construction.

After the introduction of the E Line, ridership increased to 15,800 riders per weekday in spring 2015, the most of any Metro bus route.