Those who will run for cover, take a coffee break, or simply refuse to be where they are supposed to be, he said, will be fired immediately.
Fernando issued the ultimatum after mounting reports about "disappearing traffic enforcers" reached his office.
MMDA Executive Director Angelito Vergel De Dios, who supervises traffic management operations in Metro Manila, said that abandoning one’s post is a grave offense.
He reminded traffic enforcers to be at their assigned areas and ensure smooth traffic flow rain or shine.
Reports of disappearing MMDA personnel escalated this June with the onset of the heavy rains, which are causing traffic jams all over the metropolis.
Vergel De Dios, in an interview with The STAR, said traffic enforcers are provided with raincoats, boots and other rainy-day equipment.
"That is part of their uniforms. They are supposed to be in their respective areas of assignment or at least in the immediate vicinity," he stressed.
Vergel De Dios said his office will be strict in monitoring the whereabouts of MMDA personnel 24 hours a day through mobile inspection teams.
"We have inspectors roaming around. They are in motorcycles and can easily check on our men in the field at any given time," he said.
Vergel De Dios said those recently found to have abandoned their areas early this month were fired, suspended, or investigated.
The MMDA, he added, is specifically keeping an eye on intersections where two to six traffic enforcers are fielded along with other local traffic enforcement groups.
Heavy rains during the past few weeks helped the agency identify areas of concern, especially areas prone to traffic jams and flooding.
Vergel De Dios said these include Sta. Mesa, Katipunan and Dimasalang where more personnel should be deployed and further clearing up of esteros and waterways are recommended. — Michael Punongbayan