To ensure that the small car is safely loaded in the trailer, it is necessary to start from the inspection before loading, the operation during loading, and the precautions during driving. The following are specific safety measures:
Preparation before loading
1. Check the trailer condition: Before loading, check whether the trailer's brake system, tire pressure, towing device, brake air pipe, cable connector, etc. are well connected to ensure that they are in normal working condition.
2. Check the condition of the small car: Check the brake system, tires, handbrake, etc. of the small car to ensure that they are in normal condition to avoid accidental sliding or loss of control during towing.
3. Choose the right trailer tool: Choose the right trailer tool and connector according to the weight, size and road conditions of the small car. For example, heavier vehicles require stronger connectors and trailers with greater load-bearing capacity.
Operations during loading
1. Ensure balanced loading: When loading a small car, the weight of the vehicle should be evenly distributed on the trailer floor. The lower the center of gravity, the better. It should not be too high or too heavy on one side or one end of the trailer.
2. Fix the vehicle: After loading the small car onto the trailer, use straps, hooks and other fixing devices to firmly fix it to the trailer to ensure that the vehicle does not move during transportation.
3. Pay attention to the loading order: When loading, load from front to back to avoid stacking the vehicle to one side, which will affect the balance of the trailer.

Precautions during driving
1. Control the speed of the trailer: Maintain a steady and moderate speed, avoid sudden braking and acceleration, and reduce the impact on the vehicle and connectors.
2. Keep communication open: People in the trailer and those in the small car should maintain good communication and communicate road conditions and vehicle conditions in a timely manner.
3. Pay attention to traffic rules: Strictly abide by traffic rules, especially when turning, changing lanes and passing through intersections, turn on the turn signal in advance to ensure that other vehicles can clearly understand the driving intention of the trailer.
4. Avoid overloading: The loading mass of the trailer cannot exceed its maximum load, and the total mass of the trailer towed by a small passenger car shall not exceed 700 kg.
The above measures can effectively ensure the safe loading and transportation of small cars in trailers.