Abstract: A system, method, and computer program product calculate the cost for a traveler to drive the traveler's personal vehicle on a trip of a defined distance and duration, and compare the cost of driving the traveler's personal vehicle to the cost of other transportation options, such as the cost of renting a vehicle and driving the rental vehicle on the trip. In this regard, a system for comparing a cost of driving a traveler's vehicle to a cost of other transportation options comprises a server capable of calculating a total cost to drive the traveler's vehicle on a trip. The server is further capable of calculating a total cost to drive a rental vehicle on the trip. The server is further capable of comparing the total cost to drive the traveler's vehicle on the trip to the total cost to drive the rental vehicle on the trip.

Abstract: A device, system, method, and computer program product enable a traveler to generate customized travel information corresponding to a travel profile, and download the customized travel information to a portable data storage device for ease of viewing the information while traveling. A portable data storage device comprises an interface element and a data storage element. The interface element may be capable of interfacing with a travel information data provider to receive customized travel information, and capable of interfacing with a display device. The data storage element may be capable of storing the customized travel information received from the travel information data provider, and capable of storing an executable computer program. The interface element receives customized travel information from the travel information data provider in response to a traveler providing a travel profile.

Abstract: Systems predict the availability of travel resources and select an appropriate data source for obtaining travel resource inventory availability information by analyzing historical travel resource availability data. Such systems receive customer travel requests and determine candidate itineraries. The candidate itineraries are used to determine the probability that the candidate itineraries will remain available for certain periods of time based on historical availability information and fare rules. Such systems increase the reliability of booking travel itineraries by determining when it is necessary to obtain updated availability information. The systems make this determination by looking up candidate itineraries in a situation table calculated from historical availability information.