Computer software, namely, software for carrier transportation management; enterprise operating software for railroads; software modules for operations, billing systems, track warrants, signal testing, and car hire accounting used in the field of carrier transportation; operating software for railroad yards; software used to create map-based railroad yard graphics used for signage in railroad yards; software planning tools used for carrier transportation management; software used to provide asynchronous information updates in the field of carrier transportation; software used for interfaces to information systems; software used for railroad yard inventory and work order control; computer modules and software for computer-based decision support and shop planning used in the field of carrier transportation; fuel management software for railroads; software used for locomotive health monitoring, strategic inventory planning and purchasing management in the field of carrier transportation