The Hidden Dangers of a Wet Coastal Drive
Driving during the monsoon is challenging anywhere, but coastal roads present a unique set of hazards. The combination of heavy rainfall and proximity to the sea creates a perfect storm for dangerous conditions. Waterlogging is a primary concern, with
roads in cities like Mumbai and Chennai frequently becoming submerged. These flooded stretches can conceal deep potholes or debris, which can cause significant damage to your vehicle or lead to an accident. Furthermore, some coastal infrastructure projects have been criticized for potentially worsening flooding issues, especially when heavy rain coincides with high tides. Beyond freshwater flooding, saltwater spray and flooding can accelerate corrosion on your vehicle's underbody. There's also the increased risk of landslides in hilly coastal areas and the simple, deadly fact that braking distances are significantly longer on wet surfaces.
Understanding Aquaplaning: When Your Car Skates on Water
One of the most frightening experiences when driving in the rain is aquaplaning, also known as hydroplaning. This occurs when a layer of water builds up between your tyres and the road surface. When this happens, your tyres lose contact with the road, resulting in a complete loss of steering, braking, and acceleration. Worn tyres with insufficient tread depth are a major contributor, as the grooves are designed to channel water away. However, even cars with new tyres can aquaplane if the speed is too high for the amount of water on the road. While there's no exact speed at which it happens, the risk significantly increases above 50-60 km/h in standing water. If you feel the steering become light or the traction control light flashes, you may be aquaplaning. The key is not to panic, ease off the accelerator, and hold the steering wheel straight until your tyres regain grip.
Before You Start Your Journey
Preparation is your first line of defense. Before heading out into a downpour, conduct a few simple checks. Ensure your tyres have adequate tread depth—at least 2-3 mm is recommended—and are inflated to the correct pressure. Worn tyres are one of the biggest risks for aquaplaning. Check that your brakes are in top condition, as their effectiveness is reduced on wet roads. Your wipers are critical for visibility; replace them if they leave streaks or judder across the glass. Finally, test all your lights: headlights, taillights, and indicators. Using low-beam headlights during the day in heavy rain helps other drivers see you.
On the Road: Essential Do's and Don'ts
Once you're driving, adapt your style to the conditions. The single most important rule is to slow down. Reducing your speed gives you more time to react and significantly lowers the risk of aquaplaning. Double the distance between your vehicle and the one in front; stopping takes much longer on wet roads. Avoid sudden braking or sharp turns, as these actions can unsettle the car and cause a skid. If you must drive through a waterlogged area, do so slowly and steadily. Try to gauge the water's depth by looking at the footpath or other landmarks. If the water level is above the bottom of your car's doors, it's best to find another route. Driving at a steady, low speed creates a 'bow wave' that can help keep water out of the engine bay. Never try to restart your car if it stalls in deep water, as this can cause catastrophic engine damage known as hydrostatic lock.
Know When to Stay Home
The safest option is sometimes not to drive at all. During exceptionally heavy downpours, severe waterlogging, or when authorities issue warnings, it is wise to postpone your journey. Visibility can become so poor that it is impossible to see pedestrians, other vehicles, or hazards on the road. Underpasses are particularly dangerous and should be avoided as they flood quickly and deceptively. No appointment or errand is worth risking your life or the lives of others. If you are already on the road and conditions worsen dramatically, find a safe place to pull over—well off the road and on higher ground if possible—and wait for the weather to improve.
