Abstract: Passengers are notified as to whether an item if luggage is overweight. Information relating to a journey is received for which a passenger has a ticket and an item of luggage is weighed such that this may be compared with a maximum weight allowed for the luggage item. An extent to which the luggage is overweight is indicated so that a passenger may reduce this weight or accept that an additional payment is required. In order to provide accurate results while reducing the overall size of the data stored, information relating to a journey includes first data identifying a carrier and second data identifying a destination.