In the modern transportation sector, braking systems are of paramount importance, and as a critical component of these systems, the rational selection of composite brake pads directly impacts driving safety and performance.

Composite brake pads offer numerous advantages over traditional counterparts. They can deliver more stable and robust braking forces. This is attributed to their unique material formulations and manufacturing processes, which enable the brake pads to swiftly convert a vehicle's kinetic energy into heat energy through friction with the brake discs, thereby achieving efficient braking. Additionally, composite brake pads exhibit excellent wear resistance, effectively prolonging their service life, reducing replacement frequency, and cutting down on maintenance costs.

In the railway transportation domain, different types of trains have varying requirements for composite brake pads. High-speed trains operate at extremely high speeds, imposing more stringent braking demands. During the selection process, particular emphasis should be placed on the high-temperature performance and heat dissipation capabilities of the brake pads. The immense heat generated during braking at high speeds can adversely affect braking performance if the brake pads are unable to dissipate heat promptly and maintain a stable friction coefficient. Therefore, composite brake pads with high-temperature resistance and good thermal stability should be chosen for high-speed trains to ensure reliable operation during emergency braking or frequent braking scenarios. For ordinary railway passenger cars and freight trains, greater attention is paid to the versatility and cost-effectiveness of the brake pads. It is essential to guarantee that the braking performance meets daily operational needs while keeping costs under control. In this case, composite brake pads with moderate performance and an affordable price are a more suitable choice.

In the urban rail transit sector, subways and light rails operate in complex environments with frequent starts and stops. Composite brake pads need to possess rapid-response braking capabilities and good fatigue resistance. Given their operation within cities, there are also strict requirements for braking noise. Consequently, low-noise composite brake pads are given priority. This not only ensures passenger comfort but also minimizes the impact on the surrounding environment.

In road transportation, the selection of composite brake pads for automobiles is equally crucial. Small passenger cars prioritize braking sensitivity and comfort. High-performance composite brake pads can achieve braking within a short period and do not generate excessive vibrations or noise during the braking process. For large commercial vehicles, such as heavy-duty trucks and buses, which carry significant loads and cover long distances, the brake pads need to have higher strength and wear resistance to withstand frequent and high-intensity braking operations.

Furthermore, the selection of composite brake pads should also take into account environmental factors. In cold regions, the brake pads must maintain good flexibility and friction performance at low temperatures. In areas with high temperatures, humidity, or heavy dust, they should possess corresponding capabilities to resist high temperatures, moisture, and dust.

In summary, the application and selection of composite brake pads is a process that involves comprehensive consideration of multiple factors. Only by accurately selecting appropriate composite brake pads based on different types of transportation vehicles, operating conditions, and environmental factors can their braking efficiency be fully utilized, ensuring the safety and smoothness of transportation.