Abstract:
The purpose of this research is to study and prioritize factors affecting the selection of location of ABC's new office in Rayong Province by applying Analytical Hierarchy Process (AHP). The factors which affect to the decision making which can be divided into 5 main factors which are 1) utility factors 2) transport factors 3) customer factors 4) employee factors 5) community factors and 15 secondary factors. Then, the performance is assessed by company executives or decision-makers with Purposive sampling for 7 persons through interview and questionnaires. The data is then obtained to create the model to compare the priorities of primary and secondary factors affecting decision-making. When different factors are compared with the alternative location, the decision-making approach for the location of the new factory office is the most suitable. The weight analysis of the main factors showed that customer factor was the most important (40%), followed by the environmental factor (26%), utilities factor (18%), the land factor (10%), whereas the least significant factor is transportation factors (6%). By the way another top five most important for the secondary factors were: number of customers in the area (25.60%), followed by customer response factor (14.40%), flood risk factor (9.10%), community attitude factor (8.64%), utilities factor (7.92). %) respectively. The most suitable alternative location is Map Ta Phut Industrial Estate (45.40%), followed by Asia Industrial Estate, Rayong (31.48%), and lastly, WHA Eastern Industrial Estate (Map Ta Phut) (23.12%) respectively.