The basic function of pavement design is to provide a structure, which meets or exceeds the design life and accommodates the anticipated traffic loading, environmental conditions, available materials, and construction variability.
Current trends provide new challenges and demands.
For example, the environment in which these pavements must serve continues to change. The numbers and weights of trucks and buses continue to increase at a rate that accelerates the damage to pavements. Currently, certain types of paving mixes that reduce traffic-generated noise, splash, and spray cannot be used because of excessively high wear rates due to studded tires. Construction and Traffic Congestion. Traffic control and night time only work are significant costs in pavement rehabilitation projects.