Asan Bar, is the most professional and popular web service and mobile application in the transportation industry in Iran which is based on a unique and innovative concept. Asan Bar provides a platform for shippers to list their shipping requests, and for drivers to submit their proposals. This efficient double-sided combinatorial auction model reduces the shipping costs by holding competition among drivers and eliminating the middlemen between the drivers and shippers. Using this service will be completely free of charge for shippers.