Are room blocks becoming a thing of the past? If the 2015 Room Demand Study is any indication, one could conclude that the industry is heading in that direction. In fact, the study found that one out of every three rooms is booked outside the contracted room block. Between mandated travel policies, attendee preferences and sites such as Airbnb affecting room blocks, what can planners do to decrease their risk of attrition penalties? Read on to find out five questions planners can ask themselves to protect their room blocks.