1. A method comprising: transmitting, by a transceiver of an autonomous vehicle, an assistance signal to an assistance center, wherein the assistance signal indicates that the autonomous vehicle seeks assistance while navigating according to a first trajectory; receiving, by the transceiver of the autonomous vehicle, a request for navigational information from the assistance center; transmitting, by the transceiver of the autonomous vehicle, the requested navigational information to the assistance center, wherein the requested navigational information indicates representations of objects in a vicinity of the autonomous vehicle; and receiving, by the transceiver of the autonomous vehicle, a response to the assistance signal, wherein the response includes a representation of a second trajectory that intersects the first trajectory at one or more points, and wherein the transceiver is controlled by a processor of the autonomous vehicle to perform the transmitting and receiving.