What determines the minimum thickness for laying asphalt?

The minimum thickness for laying asphalt is primarily determined by the plans developed by the designer. These plans are based on various factors, including traffic load, base material, and the specific requirements of the project. Designers consider the engineering standards and guidelines that dictate the appropriate thickness necessary to ensure the pavement's durability, load-bearing capacity, and overall performance in the intended environment.

While local climate conditions, the type of aggregate used, and the equipment available can influence the asphalt application and construction process, they do not supersede the designer's specifications regarding the minimum thickness. The designer's plans provide the essential framework that accommodates safety, longevity, and regulatory compliance for the asphalt pavement. Hence, adhering to these specifications is crucial for achieving the desired outcome in pavement performance.