A method of operating an installation, wherein the installation comprises at least one path (a) composed of path portions (b), wherein vehicles (c; 9) are movable on the path (a) and comprise an electronic circuit for influencing at least the speed of the vehicle (c; 9), wherein the vehicle (c; 9) comprises means for position detection, wherein data can be exchanged between one or a plurality of vehicles (c; 9) and at least one stationary unit (g), characterised in that - a table is loaded into the electronic circuit of the vehicle (c; 9) at least upon start up, - the following steps are repeated at time intervals: i. the information about the position is detected and supplied to the electronic circuit of the vehicle (c; 9), ii. that path portion (b) in which the vehicle (c; 9) is located is ascertained from the detected information by means of the table, iii. a message (d) is received from a stationary unit, wherein the message (d) is composed of message parts (e) which are each associated with path portions (b), iv. the message part (e) associated with the specific path portion (b) is used and the instructions contained there are executed, v. that message part (e) which is associated with an adjacent path portion (b), in particular that path portion which will be reached next according to an advance calculation, is stored, vi. the information about position is repeatedly detected and supplied to the electronic circuit of the vehicle (c; 9), vii. that path portion (b) in which the vehicle (c; 9) is located is ascertained from the detected information by means of the table, viii. if the adjacent path portion (b) is reached, the information, such as instructions, associated with the new path portion (b) is executed, ix points iii to viii are repeated multiple times. - a table is loaded into the electronic circuit of the vehicle (c; 9) at least upon start up, - the following steps are repeated at time intervals: i. the information about the position is detected and supplied to the electronic circuit of the vehicle (c; 9), ii. that path portion (b) in which the vehicle (c; 9) is located is ascertained from the detected information by means of the table, iii. a message (d) is received from a stationary unit, wherein the message (d) is composed of message parts (e) which are each associated with path portions (b), iv. the message part (e) associated with the specific path portion (b) is used and the instructions contained there are executed, v. that message part (e) which is associated with an adjacent path portion (b), in particular that path portion which will be reached next according to an advance calculation, is stored, vi. the information about position is repeatedly detected and supplied to the electronic circuit of the vehicle (c; 9), vii. that path portion (b) in which the vehicle (c; 9) is located is ascertained from the detected information by means of the table, viii. if the adjacent path portion (b) is reached, the information, such as instructions, associated with the new path portion (b) is executed, ix points iii to viii are repeated multiple times. i. the information about the position is detected and supplied to the electronic circuit of the vehicle (c; 9), ii. that path portion (b) in which the vehicle (c; 9) is located is ascertained from the detected information by means of the table, iii. a message (d) is received from a stationary unit, wherein the message (d) is composed of message parts (e) which are each associated with path portions (b), iv. the message part (e) associated with the specific path portion (b) is used and the instructions contained there are executed, v. that message part (e) which is associated with an adjacent path portion (b), in particular that path portion which will be reached next according to an advance calculation, is stored, vi. the information about position is repeatedly detected and supplied to the electronic circuit of the vehicle (c; 9), vii. that path portion (b) in which the vehicle (c; 9) is located is ascertained from the detected information by means of the table, viii. if the adjacent path portion (b) is reached, the information, such as instructions, associated with the new path portion (b) is executed, ix points iii to viii are repeated multiple times.