The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.
RTD's service-change notice says "the initial service on East Colfax Bus Rapid Transit (BRT) will begin along Colfax Avenue starting Sept. 27."
Routes 15/15L run in the center lanes from Sept 27; the full line from Union Station to I-225 in early 2028.[1]
The 2-mile Broadway-Colorado Blvd segment opens Sept 27 on an 8.5-mile corridor to I-225; full BRT late 2027 or early 2028.[1]
RTD: center lanes become bus-only from fall 2026; 'Bus Rapid Transit service will begin when construction is complete at the end of 2027.'[1]
Something missing or wrong? Say it in your own words: a link that backs this pin up, a different start or end date and why, or a fact it lacks or gets wrong. The AI checks it against this pin's sources, searches for better ones, and adds any page that backs you up. The pin's own sources still count most.