Abstract: A network computer system operates to monitor a plurality of requester devices to detect activities of requesters, and activities of transportation providers. Based on the monitored activities, the system forecasts a number of requesters that may be present in each of multiple subregions of a given geographic region, during an upcoming time interval. The system further estimates a target number of transportation providers to have available for requesters in each of the subregions. The system determines a supplemental value set for crediting transportation providers, in connection with each individual transport provider performing one or more activities that make the transport provider available to one or more of the multiple subregions during the upcoming time interval.