Why must axle loads be within legal limits?

• A. To increase top speed on highways.
• B. To protect roads and vehicles, ensure safe braking and handling, and comply with regulations; exceeding limits risks penalties and damage.
• C. To reduce heat.
• D. To lighten the vehicle.

Answer: (B)

Limiting axle loads is about safety and preserving the road network. When loads stay within legal limits, the weight on each axle is spread in a way that roads, bridges, and vehicle components are designed to handle, helping maintain predictable braking and handling and keeping tires and suspensions under the stresses they were built to endure. If you go over the limits, you increase the risk of road surface damage such as rutting or cracking, accelerate wear on tires and suspension, and even threaten structural integrity of bridges that have their own weight-per-axle limits. There are also legal consequences to overloading, including penalties and enforcement actions. So, the purpose is to protect infrastructure, improve safety, and ensure compliance with regulations.