The deterioration of paved roads is defined by the damage trend of its surface condition over time. The defects of a pavement surface, which is usually quantified through a pavement condition survey, are classified under three major models of distress, namely; cracking, disintegration, and permanent deformation. The main focus of this paper is on the crack damages because cracking often triggers the application of maintenance treatments and cracking can be the decisive factor in determining the most appropriate rehabilitation option among others. Cracking is perhaps one the most important distresses in bituminous pavements. The development of cracking is considered directly in most mechanistic design procedures and indirectly in most empirical design procedures. A primary bituminous pavement design objective is to minimize cracking. Cracking is a distress that is readily identifiable and universally acknowledged as a sign of pavement deterioration. However, the modeling of cracking is quite complex. There are many factors that can affect the development of cracks, and once present, the proliferation of cracking may be affected by the same factors, probably the different factor with the other, or a combination of both.ud
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机译：铺装道路的恶化取决于其表面状况随时间的破坏趋势。路面缺陷通常通过路面状况调查来量化，可分为以下三种主要的遇险模型：开裂，崩解和永久变形。本文的主要重点是裂纹的损坏，因为裂纹通常会触发维护处理的应用，而裂纹可能是决定最合适的修复方案的决定性因素。开裂可能是沥青路面最重要的困扰之一。在大多数机械设计程序中直接考虑裂纹的发展，而在大多数经验设计程序中间接考虑裂纹的发展。沥青路面的主要设计目标是最大程度地减少裂缝。开裂是一种容易识别的问题，普遍认为这是路面恶化的迹象。但是，裂纹建模非常复杂。有许多因素会影响裂纹的发展，一旦存在，裂纹的扩散可能会受到相同因素（可能是彼此不同的因素，或两者兼而有之）的影响。 ud
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