A method performed in a system comprising a plurality of autonomous vehicles. The method comprises a first vehicle transmitting a geometric configuration information to be adopted by one or more other vehicles participating in a transport operation in combination with the first vehicle, wherein the geometric configuration information comprises information regarding respective distances and orientations the one or more other vehicles are required to adopt relative to the first vehicle, a second vehicle, upon receipt of the geometric configuration information, adopting a position relative to the first vehicle or to a further vehicle participating in the transport operation, the position of the second vehicle defined by the geometric configuration information and the first and second vehicles performing a transport operation in a synchronised manner once the second vehicle has adopted said position.