I went YouBiking around New Taipei the other day checking out the progress on the Circle Line.
Most of the “big green signs” have been updated to a construction end date of November 2018 (was previously June 2018).
There has been substantial progress since I last did the ride about six months ago, especially around Banqiao where the guideway is now complete and the station has gone from almost nothing to perhaps 70%.
The guideway is now complete along the entire route and although you obviously can’t see the tracks from the ground, those are probably complete or close to it in most places, too. In some places, the street-level construction barriers have been removed, streets have been repaved, and landscaping work has been done on the median.
The station structures are still looking pretty skeletal on the northern half of the line from Banqiao towards Industrial Park, but are closer to completion on the southern half from Banqiao to Jingping Road and on to Dapinglin (I didn’t bike that far).
November 2018 still seems a little optimistic based on the construction progress. The smart money says mid-2019.