With the S 531 DT, you will always know what is ahead – in terms of road traffic as well as your planning. With this in mind, the S 531 DT ensures marvelous relaxation not only for your passengers, but also for you. This begins with Setra’s high safety standard which delivers the best possible protection during the journey. And this is where the S 531 DT is way ahead in the world of the double-decker coaches.

The latest generation of driving assistance systems pick up on the environment more precisely than ever before, they react with foresight and prevent dangerous situations from arising in the first place. The state-of-the-art safety concept also takes into account the people outside the vehicle.

The new Emergency Brake Assist ABA 6 detects obstacles, including stationary or moving pedestrians or cyclists, even more precisely and in almost all traffic situations and can initiate emergency braking. As a result, it ensures the highest level of safety in the city as well as on long-distance roads. In addition, the S 531 DT comes as standard with Sideguard Assist 2, which offers even more protection for pedestrians and cyclists thanks to sensors on the right and left when turning and changing lanes. Frontguard Assist monitors the area immediately in front of the vehicle as standard.

The 360° camera system consists of four cameras that capture the immediate vehicle environment and generate an indirect all-round view. The associated 10" screen is located on the A-pillar above the cockpit. This system allows pedestrians, cyclists and obstacles to be seen even in areas that are otherwise not visible to the driver. In this way, the system increases road safety, as collision hazards can be detected and, at best, prevented.

The views from the 360° camera are available up to a speed of approx. 20 mph (30 km/h) when driving forwards and always when reversing. Note: Risk of accidents due to objects protruding into the traffic area above the cameras, e.g. protruding roofs, exterior mirrors of your own and other buses, etc. The cameras cannot detect these objects. Particularly in the 360° view, the impression of a free environment can be created even though objects above the mounted cameras protrude into the turning space.

The innovative Traffic Sign Assist offers maximum safety and comfort on the road. Thanks to GPS and camera support, the vehicle speed is constantly compared with the current traffic regulations.

The system is designed to provide dedicated and appropriate feedback if the permitted speed is exceeded. Thanks to the state-of-the-art instrument cluster, the driver receives both visual and audible signals that immediately draw attention to the speed.

The modern MirrorCam system provides a clear and full view of the road traffic. Equipped with high-resolution cameras, the driving safety is improved and the risk of accidents is minimised. The extended field of vision enables the driver to see pedestrians, cyclists and other road users in the surrounding area. This eliminates the blind spot when turning right.

Depending on the vehicle, the images are displayed on 7" and 15" monitors. The two high-resolution displays show the different fields of vision. The photodiodes integrated in the monitors detect the incident light and adjust the brightness of the respective monitor individually. To make it easier for the driver to evaluate the images, the 15" variants have three different guide lines. Together with the permanently calibrated vehicle end line, the distance line assists the driver in assessing approaching objects. The Overtaking Assist overlay is activated from a speed of 10 km/h with flashing, in order to safely assist overtaking or turning. In addition, the display for Blind Spot Assist is installed in the monitor.

The high beam assistant automatically switches the high beam on or off depending on traffic, so that optimum illumination of the road is always ensured. In this way, it contributes to greater safety through improved lighting conditions and optimized illumination, and increases driving comfort and safety.

Attention Assist (AtAs) is a safety assistance system that can help prevent microsleep. It thus contributes to improved driving safety, especially on long journeys and when driving at night. The system warns the driver visually and acoustically when it detects typical signs of overtiredness or inattention and prompts him/her to take a break. The warning is independent of the electronic logging device (ELD).

To analyze driving behavior, the steering movements are evaluated and an individual driver profile is created from them. The evaluation of the steering style is based on a stored algorithm. It evaluates steering errors made by the driver. At the beginning of the journey, the system first “learns” the driver's steering profile – this only occurs at speeds above 37 mph (60km/h). During the journey the custom steering behavior learned in this manner is then constantly compared in an electronic control unit with the driver’s current steering behavior and the respective driving conditions. A warning with a symbol (coffee cup in the display) appears when the current steering style deviates from the steering profile learned by the system.

With the aid of a camera system behind the windshield, the Lane Departure Warning system detects when the vehicle unintentionally leaves a marked lane. As soon as the vehicle crosses the markings, the driver is warned by a clear vibration on the corresponding side of the driver's seat.

The Electronic Stability Program (ESP®) significantly reduces the risk of the vehicle skidding and tipping over by selectively braking individual wheels or by braking the vehicle as a whole.