Storm Timeline Hour +14:00
Max Inundation 78 cm
Submerged Arteries 14.2 km
Vehicles Relocated 4,820 / 6,500
Timeline: +14h
Surface Water Depth
0 - 5 cm (Safe ground)
5 - 25 cm (Knee height / Slow traffic)
25 - 60 cm (Car impassable)
> 60 cm (Severe disaster zone)
Yellow P: Elevated Safe Haven
Orange Box: Pumping Station

Urban Sectors & Elevation Click sector on map

High-Ground Safe Havens (Parking) 7,200 Capacity

Emergency Drainage & Evacuation Dispatch Log Autonomous hydrological sensor alerts
[00:00] BMA Warning: Tropical depression rainfall exceeds 150mm threshold. Flood stage II active.
[04:30] Phra Khanong pumping station operating at 100% capacity (180 m³/s).
[08:15] Sukhumvit 71 & Bang Na intersection flooded to 40cm. Sedans advised to halt.
[11:00] Elevated tollway ramps at Din Daeng and Bang Na opened for vehicle staging.

Hydrological Urban Flood Grounding

In low-lying estuarine cities like Bangkok, New Orleans, or Rotterdam, ground elevations frequently hover near or below mean sea level (0.5m to 2.2m MSL). When 24-hour rainfall coincides with Gulf or sea tidal peaks, river water cannot drain naturally by gravity. Water backups force water into side canals (klongs) and roads. This simulator applies a 2D height-field raster diffusion model accounting for rainfall, surface runoff coefficient, drainage station pumping rates, floodgate protection, and elevated staging points so municipal teams and residents can protect assets before floodwaters peak.

Sedan Inundation Limit: 25 cm Water entering engine air intakes causes hydrostatic lock, resulting in total vehicle loss. Early relocation to elevated parking ramps is essential.
Pumping Surcharge Lock High tide stops sluice gates from venting water. Active diesel & electric mega-pumps become the only mechanism to evacuate delta runoff.
Elevated Staging Relocation Using expressway bridges, transit park-and-rides, and multi-tier mall decks preserves commercial fleets and residential vehicles.
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