Cities desirous of developing a multi-modal mobility platform would need to provide travelers with seamless information about and access to a range of emerging mobility options, such as fixed-route or flex-route public transit, micro-transit, ride-sharing, car rentals, bike-sharing, scooters, moped, and walking routes. Those options altogether have potential to improve accessibility to essential resources regarding employment, health care and food. This research acquires mobility service data to understand travel behavior in choosing mobility options, optimize design of such a platform by optimally placing mobility hubs with multiple mobility options, with the ultimate goals of improving accessibility, sustainability and efficiency for underserved populations.