The influencing factors of area-based infrastructure project sustainability in Thailand

The major problems of area-based infrastructure projects (ABIP) are caused by unsuitable plans, poor management, economic instability and administrative complication. These drives low productivity, poor project performance, unsustainability and inefficiency pattern. The objective of study is to analyze factors influencing ABIP for achieving sustainability model. Both qualitative and quantitative analyses were used when needed to follow the right procedure. In-depth information gathered by a reliable pilot case investigation in which the semi-structured interview had been illustrated earlier. The data collection using questionnaire was sent out to representative samples across Thailand. The results were classified into 4 groups: (1) implementation plan and area participation, (2) administration and tool management, (3) budget and public provision, and (4) connection network and research development. The total cumulative variance can be explained in 57.218%. An administration and tool management has the largest effect of all. As a result, an overall ABIP sustainability model was developed. With this model, the proposed ABIP can be evaluated and ranked according to their expected sustainability outcomes. The decision-makers can successfully plan for the sustainable development of the infrastructure projects within certain specified boundaries and restrictions.