to supplement these lines, on the cities of le taillan-medoc, bouliac and artigues-près-bordeaux is set up résago. this service of demand responsive transport makes it possible to serve zones little or not covered by the traditional lines of bus or tram. this service requires a preliminary telephone reservation, until the day before 7pm. the résago vehicle leads then the passengers of a point given to a bus or tram stop. this service costs the price of a normal ticket of tbc.