A research study submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Civil Engineering

Research Studies Project Report (M. Eng.) - Asian Institute of Technology, 2003.

Throughout Thailand, road safety is the major problem that has been overlooked by the concerned authorities for a long time. One important, but perhaps not well-treated for the safety aspect of road network, is road lighting. Road lighting is provided for various reasons, the most important of which is road safety and public amenity. The problems of lighting on the road networks in Thailand were collected and summarized in this research. There are four categories of problems that were presented in this study: lack of standard, lack of maintenance, alignment problem, and specific problem. This study developed framework and a computer system with to improve the road lighting system in Thailand. A set of problems investigated from the site surveying was employed to develop the lighting framework in this research. The Second Stage Expressway (section between Bangkhlao and Ngam Wong Wan) was selected as the case study to verify the developed computer system and the lighting framework. The results indicated that road lighting were over design when compared with the optimum case. Furthermore, two major problems found at this case study were inappropriate alignment and lack of maintenance at certain location of this selected study section.