| dc.description.abstract | Pavement maintenance and rehabilitation are the most important issue of urban road administration in Taiwan. After the development of Taiwan road network are closely complete, to extend the urban road service time, keep good performance and cost down are concerned by local government. The objective of this study was established an index for Taipei city government to keep pavement service level meet the requirement of resident. The high definition 2D Laser CCD and camera was adopted to collected pavement condition included international roughness index, rutting and crack in Taiwan city. 30 residents and 28 engineers were invited to join the Present Serviceability Rating (PSR) program to assistant establishing the Taipei Pavement Quality Index(TPQI). At last, the proposed pavement management strategic of the Taipei urban road would be suggested in this study. The validation of the inspection vehicle with the high definition 2D laser CCD and camera was satisfied the AASHTO standard, public works research institute and Taiwan CNS standard. According to the results, the formula was as following: TPQI=5-0.612*ln(IRI)-0.127*√Crack-0.253*ln(Rut), the explanation coefficient of TPQI was 97%. the trend of Maintenance Control Index (MCI) of Japan and the TPQI were same, only a little coefficients different and the different should be due to two countries user requirement and expectation. In consideration of Taipei 80% users satisfaction and capital budget, minimum requirement of TPQI should be 3.2, Crack ratio should be under 17 %, Rut. depth should be under 12 mm, the IRI should be under 9.7 m/km. The maintenance and rehabilitation of urban road is always the most important course and challenge for engineers in Taiwan. Based on above, TPQI should be a very nice index for Taipei city government to maintenance urban road pavement using the annual decreasing capital budget and it is worthy of further study. | en_US |