Rollercoaster comprising: - a track with a rail to provide a rollercoaster ride path; - at least one passenger vehicle mounted to the rail to travel the passenger vehicle in a travel direction along the rollercoaster ride path, in which the passenger vehicle comprises at least one passenger seat mounted on a chassis; - a trigger system to output a data signal (ds) to a control unit to carry out an event, in which the trigger system comprises a beacon cooperating with at least one sensor, in which one of the beacon and the at least one sensor is positioned at a predetermined track position and the other is mounted to the passenger vehicle, characterised in that the beacon is formed by a beacon plate which includes an aperture pattern of present or absent apertures which aperture pattern represents predetermined data to be read by the at least one sensor; and in that the at least one sensor of the trigger system comprises a sensor set (xs1, xs2, xs3, xs4, xs5, xs6) disposed in correspondence with the aperture pattern to allow sending a trigger signal (ts) and a data signal (ds) out of a variety of possible data signals to the control unit, wherein the sensor set comprises: - a first and a second trigger sensor (xs1,xs6) which are seen in the travel direction disposed behind each other, which trigger sensors (xs1,xs6) provide together the trigger signal (ts) to readout the data from the aperture pattern when the first and second trigger sensor (xs1,xs6) together simultaneously detect a first and second trigger aperture (ta) of the aperture pattern; and - at least one read sensor (xs2, xs3, xs4, xs5) for reading the data by detecting a presence or absence of at least one read aperture (ra) of the aperture pattern; wherein the control unit is configured to obtain the data signal (ds) from the at least one read sensor (xs2, xs3, xs4, xs5) when the first and second trigger sensor (xs1, xs6) provide the trigger signal (ts). - a track with a rail to provide a rollercoaster ride path; - at least one passenger vehicle mounted to the rail to travel the passenger vehicle in a travel direction along the rollercoaster ride path, in which the passenger vehicle comprises at least one passenger seat mounted on a chassis; - a trigger system to output a data signal (ds) to a control unit to carry out an event, in which the trigger system comprises a beacon cooperating with at least one sensor, in which one of the beacon and the at least one sensor is positioned at a predetermined track position and the other is mounted to the passenger vehicle, characterised in that the beacon is formed by a beacon plate which includes an aperture pattern of present or absent apertures which aperture pattern represents predetermined data to be read by the at least one sensor; and in that the at least one sensor of the trigger system comprises a sensor set (xs1, xs2, xs3, xs4, xs5, xs6) disposed in correspondence with the aperture pattern to allow sending a trigger signal (ts) and a data signal (ds) out of a variety of possible data signals to the control unit, wherein the sensor set comprises: - a first and a second trigger sensor (xs1,xs6) which are seen in the travel direction disposed behind each other, which trigger sensors (xs1,xs6) provide together the trigger signal (ts) to readout the data from the aperture pattern when the first and second trigger sensor (xs1,xs6) together simultaneously detect a first and second trigger aperture (ta) of the aperture pattern; and - at least one read sensor (xs2, xs3, xs4, xs5) for reading the data by detecting a presence or absence of at least one read aperture (ra) of the aperture pattern; - a first and a second trigger sensor (xs1,xs6) which are seen in the travel direction disposed behind each other, which trigger sensors (xs1,xs6) provide together the trigger signal (ts) to readout the data from the aperture pattern when the first and second trigger sensor (xs1,xs6) together simultaneously detect a first and second trigger aperture (ta) of the aperture pattern; and - at least one read sensor (xs2, xs3, xs4, xs5) for reading the data by detecting a presence or absence of at least one read aperture (ra) of the aperture pattern; wherein the control unit is configured to obtain the data signal (ds) from the at least one read sensor (xs2, xs3, xs4, xs5) when the first and second trigger sensor (xs1, xs6) provide the trigger signal (ts).