A total of 600 trips are made from an origin (residential area) to CBD during the peak hour. A logit model with linear utility function is made. And three factors and an intercept are found to influence the mode choice: (1) travel time in minutes (coefficient = -0.24); (2) travel cost (parking fees, ridership fees, etc.) in dollars (coefficient = -0.08); (3) level of perceived comfort (coefficient = 0.15); and (4) an intercept/constant (coefficient = 0.3). Two possible mode choices have the following characters: