Unreserved tickets for short distance or unplanned travels may be purchased at stations at any time before departure. Holders of such tickets may only board the general compartments. Suburban networks issue unreserved tickets valid for a limited time or season passes with unlimited travel between two stops for a period of time. Commuters can purchase tickets and season passes at stations or through UTS mobile apps. A valid proof for the purchase of ticket along with photo identification is required to board the train.