Universities can considerably affect the traffic conditions in their area due to the travel demands of their constituents. UP Diliman, being one of the largest universities in the Philippines, is a significant trip generator inside Metro Manila, with more than 80% of its constituents living off-campus. This research aimed to determine the demand for a dedicated shuttle service for these constituents. Their socioeconomic and trip characteristics were analyzed using a combined RP/SP survey. Binary logistic modeling was conducted to determine the probability of shifting to the shuttle. Results show that for private mode users, relative trip time, distance of address to campus, and arrival location in campus significantly affect this probability. For public mode users, relative trip cost, distance, and sex are significant. The models estimate around 5,700 UPD constituents will probably use the shuttle, accounting for almost 30% of the off-campus population.