A system allows an end-user to locate and gain access to an access-controlled facility or resource, such as a restroom, phone charging station, or Wi-Fi hot spot. Some implementations of the system monitor the formation and concentration of individuals into crowds that may place a higher demand on facilities and resources located near the crowd. The system may distribute mobile facilities to areas that offer convenient access to potential developing crowds, and when the system determines that there is a disparity between available resources and crowd demand reaches a certain level it may deploy one or more mobile facilities to positions proximate to that crowd. A mobile facility may also be requested on demand by a user or organizer, and some implementations provide cost sharing mechanisms and other user benefits related to requesting and accessing the facility.