3.2 Pavement Problem Areas and Types
The pavement problem areas were identified by AOT staff and the pavement contractor (IOT), the damage areas up to 25th January 2007 are highlighted in Figure 21. Panoramic views of the major damage areas are shown in Photos 11 to 14 for different areas. According to the AOT investigation team and IOT reports, the types of pavement damage could be divided into two (2) categories: Category I with surface damage on wearing/binder course as illustrated in Figure 22 and Category II with damage in the base course of asphalt concrete as shown in Figure 23