- Water Level 5-10 cm: All vehicles can pass through.
At this height, all cars can drive through using slow speeds. As the road is slippery, high speeds may cause loss of vehicle control. Make sure to stay alert and always observe the vehicle in front.
- Water Level 10-20 cm: All types of vehicles can still pass through.
All types of vehicles can still pass through but there is a possibility of water entering the vehicle. Keep calm while driving and continue driving steadily.
- Water Level 20-40 cm: Eco-cars should be cautious.
As the water level increases, small cars and eco-cars need to be especially cautious as they are designed with a ground clearance of 15-17 cm. This makes them at risk of flooding up to the exhaust pipe, leading to exhaust pipe submersion issues. However, with caution, they can still pass through.
- Water Level 40-60 cm: Sedans and small cars should avoid.
At this level, eco-cars are no longer allowed to pass through, while pickup trucks can still manage. It is recommended to turn off the air conditioning while driving to prevent the air intake from sucking in water droplets into the engine, leading to engine failure. Drive slower, beware of water splashes from other vehicles, and try to avoid high water levels as this may cause water to enter the engine.
- Water Level 60-80 cm: Dangerous for all vehicles.
It is dangerous for all vehicles to attempt driving through floodwaters, especially small cars or eco-cars. These vehicles are at risk of engine failure and damage to various systems. The best course of action is not to attempt driving through this level at all.
For those who continue to drive through floodwaters, it is essential to check the brake system to ensure that it is still functioning normally. This is done by press the brake pedal repeatedly to expel water. However, the best course of action is to avoid driving through floodwaters altogether. Besides causing electrical system failures, vehicles, especially electric cars and low-loading cars, may stall midway. For safety, drivers need to be vigilant and carefully navigate through flooded areas to limit the dangers possible. Driving in rainy conditions requires extra caution, having motor insurance is essential to boosting driving confidence, as road accidents can occur at any time.
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Source: FleishmanHillard Thailand