With a high population density in Metro Manila, and having most of the workforce traveling in and out of the Metro, many transport methods are used to accommodate the commuters. The UV Express vans are one of the most common modes of transportation in the Philippines, 18-seater vans are commonly used for the UV-Express. Due to its popularity, makeshift seats are used to fit more passengers and have 4 passengers per row. This leads to comfortability problems as the passengers fit in a small space. The study was conducted to determine if the current measurements and number of passengers of the vans are suitable for public transport. The study focuses on the 18-seater vans which are the Hi-ace fifth-generation vans. Using statistical analysis such as regression, the determinants that affect the overall comfortability of the passengers were determined. The recommended improvements were proposed using relevant design tools. This can be concluded that the current measurements of the UV-Express vans are not suited to the current number of passengers since the seat width are not enough to fit four in a row and the actual measurement for leg space are below the recommended measurement for the leg space.