04306nas|a2200421 i 4500 20260818153658.0 011200s2000 th u m rtt 00| a1eng d .b11816697 AIT Thesis no. GE-99-23 Praprut Songchitruksa A logic-based decision support system for pavement treatments in Thailand Bangkok : Asian Institute of Technology, 2000 252 leaves Thesis ; no. GE-99-23 A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Civil Engineering The Maintenance & Planning Divisions of the Thailand Department of Highways (DOH) are both responsible for road maintenance which includes planning, budgeting and maintenance scheduling. DOH has implemented pavement management program called "Thailand Pavement Management System (TPMS)" in cooperation with a consulting firm from Canada in 1989. The data collection process for the existing TPMS concentrates more on the aggregate level of the pavement condition and other relevant data. TPMS recommends the pavement treatment for each 200-m subsection of DOH network at the network level. However, in the actual practice, the suggested treatments are overridden by the judgment of DOH practitioners due to several project-level constraints ranging from technical level to political issues. This study tries to improve the gap between the TPMS recommendation and the DOH actual practice. Thailand Pavement Maintenance Decision Support System (TPMDSS) is developed in this study to help select appropriate pavement treatments taking into account distress characteristics, roughness measurement and traffic volume. TPMDSS follows a logical progression, synthesizing various inputs in order to analyze for pavement problems and then recommend a feasible set of treatments for each TPMS subsection. Instead of traditional schedule-based treatment, TPMDSS employs a cause-based strategy. TPMDSS architecture provides an integrated framework between database management systems (DBMS) and expert systems (ES) in order to efficiently utilize available pavement information in the TPMS database. TPMDSS treatment decision model comprises four major modules which are distress evaluation, problem identification, problem evaluation and treatment determination. A TPMDSS logic-based approach is implemented with decision matrices, system rules and scoring systems. TPMDSS is validated from three analytical perspectives - overall system, improvement section and specific section. Three primary techniques are used in the validation process - model-generated data, field inspection, and expert interview sessions. Two-step treatment screening algorithm is proposed to recommend a final set of treatment for an improvement section. The validated results have revealed that TPMDSS analysis yields quite reasonable solutions in overall aspects. Thesis (M.Eng.) - Asian Institute of Technology 2000 Pavements Thailand Bangkok Decision support systems Thailand Bangkok Pannapa Herabat, Chairperson Yordphol Tanaboriboon, Examination committee Takahashi, Kiyoshi, Examination Committee Austrian Government, Scholarship donor Asian Institute of Technology. Thesis ; no. GE-99-23 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B11782 .b11816697 mnait u 240401 0 001201 m a u 2 mnait mnait mnarc 20 40 Barcode : 30050120717094 CREATED : 1999-04-07 RECORD # : i12228606 LPATRON : 1017759 LCHKIN : 2006-06-08 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 10 TOT RENEW : 6 Barcode : 30050120717060 CREATED : 1999-04-07 RECORD # : i12228618 LPATRON : 1017635 LCHKIN : 2005-10-31 # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 8 TOT RENEW : 8 Barcode : 30050160053988 CREATED : 2016-05-23 RECORD # : i12984759 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 70433 70433 0 0 0 0 MAIN MAIN mnait 2026-08-18 0 AIT Thesis no. GE-99-23 30050120717094 2026-08-18 15:36:58 1 2026-08-18 20 0 0 0 0 MAIN MAIN mnait 2026-08-18 0 AIT Thesis no. GE-99-23 30050120717060 2026-08-18 15:36:58 2 2026-08-18 20 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no. GE-99-23 30050160053988 2026-08-18 15:36:58 1 2026-08-18 40