A system, comprising: a vehicle, comprising: a vehicle interface unit positioned onboard the vehicle; a bus recorder; a databus; a computing device positioned onboard the vehicle and communicatively coupled with the vehicle interface unit and the bus recorder via the databus, the computing device configured to: generate a data file; store the data file in a buffer of the computing device; determine an available bandwidth of a transmission frame for the databus; retrieve a selectively-sized portion of the data file based at least in part on the available bandwidth of the transmission frame; divide the retrieved selectively-sized portion of the data file into transmission payloads; and allocate the divided transmission payloads into available slots of the transmission frame, wherein the allocated transmission frame is transmitted over the databus and is received by the bus recorder, wherein each of the transmission payloads form a portion of a data word, wherein each of the data words has a label indicating the transmission payload is associated with the data file, and wherein the label indicating the transmission payload is associated with the data file is allocable into more than one of the available slots of the transmission frame. a vehicle, comprising: a vehicle interface unit positioned onboard the vehicle; a bus recorder; a databus; a computing device positioned onboard the vehicle and communicatively coupled with the vehicle interface unit and the bus recorder via the databus, the computing device configured to: generate a data file; store the data file in a buffer of the computing device; determine an available bandwidth of a transmission frame for the databus; retrieve a selectively-sized portion of the data file based at least in part on the available bandwidth of the transmission frame; divide the retrieved selectively-sized portion of the data file into transmission payloads; and allocate the divided transmission payloads into available slots of the transmission frame, a vehicle interface unit positioned onboard the vehicle; a bus recorder; a databus; a computing device positioned onboard the vehicle and communicatively coupled with the vehicle interface unit and the bus recorder via the databus, the computing device configured to: generate a data file; store the data file in a buffer of the computing device; determine an available bandwidth of a transmission frame for the databus; retrieve a selectively-sized portion of the data file based at least in part on the available bandwidth of the transmission frame; divide the retrieved selectively-sized portion of the data file into transmission payloads; and allocate the divided transmission payloads into available slots of the transmission frame, generate a data file; store the data file in a buffer of the computing device; determine an available bandwidth of a transmission frame for the databus; retrieve a selectively-sized portion of the data file based at least in part on the available bandwidth of the transmission frame; divide the retrieved selectively-sized portion of the data file into transmission payloads; and allocate the divided transmission payloads into available slots of the transmission frame, wherein the allocated transmission frame is transmitted over the databus and is received by the bus recorder, wherein each of the transmission payloads form a portion of a data word, wherein each of the data words has a label indicating the transmission payload is associated with the data file, and wherein the label indicating the transmission payload is associated with the data file is allocable into more than one of the available slots of the transmission frame.