Bus drivers will be staging a two-hour work stoppage on March 27, from 9am till 11am, to protest warning signals they said put drivers and passengers alike in danger, their unions SEK and PEO announced on Tuesday.

The stoppage follows repeated interventions and warnings to the transport ministry regarding problems caused by lights installed at intersections, which they said affected the safety of professional bus drivers.

Despite these warnings, the unions said, no substantial solution has been provided.

They added that the state proposed the installation of red-light warning systems to prevent sudden braking, which poses “serious safety risks for passengers”.

The unions said buses were unable to stop abruptly due to their size and the presence of passengers, many of whom are seated without seatbelts or are standing.