The Yellow Line monorail had its first technical problem after 20 days of trial runs, with five stops temporarily closed for about 90 minutes on Thursday.
The issue occurred at 7am due to an electrical problem, the first since the 23 stations on the line opened on June 19.
Measures were taken to ease congestion at 8.28am and normal operations resumed at 10.15am.
Separately, the Department of Rail Transport (DRT) asked the Eastern Bangkok Monorail (EBM) to increase the frequency of the trains due to the growing number of passengers using the line to get to Lat Phrao station, especially during rush hour.
