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.
Metro's[3][4] D Line fact sheet forecasts Section 3 "Operations: Fall 2027", repeated in its September 9, 2026 community-meeting schedule; a season takes its last day.
Section 3 groundbreaking held May 2021; tunneling for the project completed April 2, 2024; officials want all stations open before the 2028 Olympics; Section 3 listed for 2027.[1]
Metro's[1][4] project page: Section 3 extends the line to Westwood, improving access to UCLA, major medical facilities and the Westside; Section 1 opened May 8, 2026.
Metro's[1][3] forecasted schedule table: Section 3 construction 2019-2027, operations Fall 2027.
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