(Picture from MMDA)
Their flood level announcements are designed as a guide for motorists to estimate whether their vehicles are capable of traversing the flood when it rains, which sometimes coincides with high tide.
In MMDA's Flood Gauge System, here is what "gutter deep," "tire deep," or "knee-deep" mean:
PASSABLE TO ALL TYPES OF VEHICLES (PATV)
8" (inches) - Gutter deep flood
10" (inches) - Half-knee deep flood
NOT PASSABLE TO LIGHT VEHICLES (NPLV)
13" (inches) - Half tire deep flood
19" (inches) - Knee deep flood
NOT PASSABLE TO ALL TYPES OF VEHICLES (NPATV)
26" (inches) - Tire deep flood
37" (inches) - Waist deep flood
45" (inches) - Chest deep flood
MMDA stated that there are 80 areas in Metro Manila that are frequently flooded. These include Taft Avenue and España Boulevard in Manila, G. Araneta Avenue and EDSA near Camp Aguinaldo in Quezon City, Maysilo Circle in Mandaluyong, Buendia Avenue in Pasay City, Sucat Avenue in Parañaque, and JPA Subdivision in Muntinlupa.
