What are the two protrusions behind the parking space?

[StTessa]

The two protrusions behind the parking space are wheel stoppers. Here is some additional information: 1. Function: They effectively prevent the possibility of collisions with other vehicles and reduce the risk of scratches, providing better protection for your car. They are easy to install, can be combined freely, and are suitable for parking lots, underground garages, etc. Wheel stoppers are installed at the rear of parking spaces to limit vehicles to the optimal parking position. They are eye-catching, aesthetically pleasing, and easy to install. Currently, they are the best facility for accurately limiting vehicle parking positions. 2. Precautions: Sometimes, parking spaces in underground garages are scarce. When finding an empty space, drivers often drive straight into the space headfirst, occupying it first. However, when retrieving the car, they may find it very difficult to back out. When steering to back out, the front of the car can easily scrape against adjacent vehicles. Therefore, try to avoid choosing parking spaces that are difficult to park in, such as those near pillars, lift platforms, ramps, or those surrounded by densely parked vehicles.

[LeKinsley]

When I reverse in parking lots, I often encounter those small raised bumps, usually wheel stops or parking blocks, mainly designed to prevent vehicles from rolling backward or reversing too far, thus avoiding collisions with walls or pillars. Once, while driving an SUV, my foot wasn't steady on the brake, but thankfully, these blocks stopped me from hitting an obstacle. That's why they are made of rubber or concrete and fixed to the ground to provide a buffer. When parking, these bumps serve as positioning aids, helping you park precisely within the space, reducing tire wear and vehicle damage. Nowadays, many commercial parking lots are equipped with these for convenience, safety, and energy efficiency, especially on rainy days when they help prevent skidding accidents. I recommend new drivers pay extra attention and develop the habit of parking close to them for better safety.

[BentleyLynn]

As someone interested in car design, those raised bumps are wheel stops, made from various materials like recycled rubber or reinforced plastic, fixed to the concrete behind parking spaces with precisely calculated positions to prevent over-reversing. Their function is to protect vehicle rear ends, pedestrian areas, and building structures from collisions while optimizing space layout. During vehicle maintenance, I've noticed they tend to accumulate dirt and require regular cleaning to prevent deterioration. From a technical perspective, the installation height of about 15cm suits most vehicle models to avoid chassis damage. An extended aspect is that eco-friendly parking lots also use biodegradable materials to reduce carbon footprints, enhancing sustainability and making communities safer.

[LaKaylee]

During my driving lessons at the driving school, the instructor always emphasized the importance of those raised bumps for preventing reversing accidents. They are not randomly placed but designed to stop the vehicle and prevent rollback, especially on slopes, to avoid rear-end collisions. In terms of safety, they protect pedestrians, guardrails, and public facilities, and are crucial for visibility enhancement with bright colors during nighttime or rainy/foggy weather. Remember to check them every time you reverse to ensure you don't go over the bumps, safeguarding both your own and others' safety.