Samenvatting
A cost- effective incentive program to increase safety belt use was implemented by the campus police of a large university. For each of the 3 week intervention periods during three consecutive academic quarters, the 22 campus police officers recorded the license plate numbers of vehicles with drivers wearing a shoulder belt. From these winners, 10 raffle winners were drawn who received gifts. Faculty and staff increased their belt usage markedly as a result of these "seatbelt- sweepstakes", whereas students increased their belt use only slightly.