
Only the surface layer can be repaired by filling, leveling, and compacting with asphalt sand or fine-grained asphalt mixture. For larger areas, an additional surface layer should be applied. It is necessary to re-fill and compact with materials such as crushed stone, dry-laid or mortar-laid rubble. After thoroughly treating the soil base and subgrade, the surface layer should be applied. For subsidence caused by insufficient soil compaction, measures should include adding a subgrade layer, re-compacting, and then applying the surface layer.

I've encountered road subsidence several times while driving. The usual approach is to stay calm, slow down, stop, and check the surroundings, avoiding rushing through. If it's just a small pothole, I might try using a spare tire or filling it with some soil to compact it temporarily, but it's best not to attempt this to avoid making things worse. Most cases are caused by soil issues or leaking sewers, so it's important to report them promptly to the municipal authorities, such as by calling the 12345 hotline. They will send specialists to handle the situation, like grouting reinforcement or repaving the road. While driving, always stay alert and avoid suspicious sections of the road. Regularly inspect the vehicle's undercarriage and suspension to prevent damage. I recommend installing a tire pressure monitoring system to detect abnormalities early. For prevention, community cooperation is key—ensuring roadside drainage is clear to avoid water accumulation. Safe driving habits are also crucial, like slowing down at night to prevent accidents—safety comes first.

Having driven for decades, I've encountered numerous road subsidence issues. Veteran driver experience tells me that handling methods shouldn't be taken lightly. When discovering subsidence, don't panic—pull over, turn off the engine, and check the vehicle's condition, especially for tire damage. Then detour and change routes as a priority to avoid delaying your trip. Simultaneously, report it as soon as possible, such as by contacting the local traffic authority—they handle it professionally, using road rollers to level or excavate and backfill for reinforcement. I usually pay attention to weather forecasts and scan road surfaces more before the rainy season, focusing on prevention. In residential areas, I also call on everyone to manage drainage properly and avoid littering, so the soil doesn't become loose. Over time, this saves on car repair costs and ensures safe travel. Remember, safe driving has no trivial matters.

I work in road maintenance and privately suggest handling road subsidence scientifically. First, use instruments to detect the depth—the cause is mostly due to damaged underground pipelines or unstable foundations. For minor issues, fill and compact the soil on-site; for major cases, use grouting or repave with asphalt, and promptly close the road to avoid risks. The key is to report to the municipal authorities, who will arrange construction crews to complete the work in as little as one or two days, ensuring safety signs are set up—don’t tamper with it yourself. Relevant advice for drivers: regular maintenance of the suspension system and road hazard alerts can prevent tire blowouts, making things easier.


