To prevent excessive rutting on asphalt pavements

it is necessary to predict correctly the high temperature fields in asphalt pavements with the climate information

to design adequately the pavement structures and to choose correctly the grades of asphalt binder. Based on the elementary theory in thermology

the patterns of heat exchange on asphalt pavements were analyzed in detail during summer seasons; and the two-dimensional numerical model of transient temperature fields in asphalt pavements was established with explicit scheme

which is deduced with the finite difference method. In order to understand the preliminary effects of different locations and climates on high temperature fields in asphalt pavements

the in-site experimental validations were carried out. Meanwhile

the comparison between results of prediction model and the in-site data proofs the validation of numerical model.