This project is expected to include the analysis of urban transportation systems by mathematically modeling the collective decision-making of drivers via Nash games. This game theoretical model is anticipated to be further strengthened to capture the implication of pricing on shared transport, such as shared ride or scooter. Based on this model, analyses will be conducted on the correlations between profitability of shared transport service and social welfare. An interesting question to be answered is whether traffic congestion can be reduced when the shared scooter or bike company is maximizing its profit.