The Los Angeles County Metropolitan Transit Authority (LA Metro) is developing their public transportation system with their NextGen Bus Plan which serves to increase accessibility, reliability, equitability and convenience of service. Our project identifies key socio-economic and environmental factors vital to public transportation development and evaluates the overall effectiveness of the changes in LA Metro’s proposed development plan. Through a literature review, we identified and categorised criteria into three sub-models of external, internal and environmental factors. A weighting was assigned to both the sub-model categories and the individual factors through an Analytic Hierarchy Process (AHP). With the weighted sum tool, a suitability map was created for both the AHP weighting method and equal weighting method. Subsequently, regions of suitable development were identified using the locate regions tool. A sensitivity analysis was conducted in order to ensure precision was maintained in our MCE modelling as well as the AHP weighting process is subjective and a comparison between the regions identified in our weighted AHP model were compared with Next-Gen service growth areas. Our results suggest that the weighted criteria we evaluated and the regions recommended for public transportation improvement are quite similar to that of LA Metro’s assessment, leaving behind only a slight discrepancy.