Do you ever think, when designing an orientation system, to ask yourself for example if you yourself could find the way to the toilet?
Of course. As we said, at the moment we’re in the testing phase. The key question now is: more signage or a minimal variant – that estimation depends on the individual testers of the airport. We are of the opinion of having clear and simple signs rather than covering all eventualities.
What are the implications of more signage?
That you can no longer see the wood for the trees. We have tried to make the signs as pleasant as possible, as well as clear. Even the architects have designed the places where the passengers come into contact with the building to have warm surfaces and so make the passengers feel welcome. In any case, we have tried to find a good balance.
How many signs in total have you used?
Around 3,000 pieces.
How do you design the sequence of signs?
We always understood the graphics and the sequence together, and then we checked step by step whether there is a continuous chain of information. So there were no individual signs, but rather they were always seen and designed as a whole. A simple example illustrates this construction of the chain: at the beginning, the passengers’ interest lies in the information concerning check-in and departure, and after that the particular gate, and here begins the transition from coarse to fine orientation. In Berlin, the four gate areas are identified by four letters, which you can then find on the boarding card. Whether Gate A, B, C or D – I’m not interested in that at the check-in, and so you have to decide which information to introduce at which time. So at the beginning, the main direction is important, and at the end, for example, the exact gate number is important, and this we have either made larger, or weighted differently. There was also the category “Complexly perceived situations”: a U-turn when you come out of the underground and reach the airport. And there are also completely unproblematic situations – positioning of content, done – and situations that are really very complex.
During the process, have you developed any rules of thumb?
One of the few rules of thumb is, for example, that there is only one path which leads to each destination. But even this rule of thumb was sometimes broken. You cannot over-simplify.
Furthermore, we made a clear distinction between primary and secondary information. The primary information is on red areas, and the secondary information is on grey areas and often shown in the form of pictograms. Thus, a better orientation is created for the eye. You occupy yourself a little longer with the pictograms because they’re slightly smaller. Important information is therefore easy to recognise and informative, and also when you're running out of time and frantically looking for the gate, you can find it.
We also decided on various font sizes and font families that the eye can better differentiate. So we didn’t set everything at the same size as is common, for example, in Swiss graphic design and what you can see at Zurich Airport. A double differentiation originated through tonal optimisation. This method allows you to differentiate without the need to be colourful. Red had to be the key guiding colour, so it was differentiated through tonal values (fine lines), sizes and font styles.
Earlier, it was unthinkable to plot so many lines. But through today’s digital printing it is so easy. Not many airports work with digitally printed orientation systems.
What did you have to change after the test run at the airport?
The information in the stairwells is being raised at the moment. The passengers should not have to stand and look around. They should continually flow through the stairwell, and here there are still a few unclear turns, but we’re working on them.
Because of time constraints, some partly reduced DIN A3 signs were placed on the wall that will later actually be three to four times bigger, and despite this the test passengers found their way. It’s not entirely representative, not how it will look in the space later. But if you can manage it in a test run, then when it’s finished, hopefully it will not be impossible to reach your destination.
Would you say that the project is more management and politics than design?
Is design not the management of elements? This giant is already something great and therefore many different things belong to it. You can call it management, but it is more information and communication design. Not only did we create the visible design, but we often prepared design and information variants because they fell more easily under the decisions of certain committees. Therefore, so to say, we accomplished visual aids to decision-making – with information design.
What does the outside area look like?
The orientation system does not stop at the facade. For example, the airport has adopted its own, custom-designed red road signs and not the profane, white signs of the city of Berlin. The street names are in the airport font and we designed them to fit into the system.
What will that lead to, if everybody can design their own street signs and every Siemens complex is allowed to develop their own signs?
For the capital city airport it is appropriate. Naturally there are airports that say they will not do that, but for us the airport already begins after the motorway exit, and that is what we show. The Airport City also belongs here, and so the area is perceived as a whole. There is also the aspect that a different perception is triggered through the changed environment; perhaps you even feel safer. Even with the signs it was a process. There are of course particular guidelines and standards for traffic signs that must be observed. Our first design had white text on a red background. That wasn’t approved because there are guidelines for the amount of white on traffic signs. The solution, then, was colour areas on a white background.
Are there any additional peculiarities?
We took the basic concept of the layout plans, elaborated on them and now to some extent more detail is being added by the individual departments. There are flat and axonometric views of the various layers.
If you were contracted to work on another airport, is it not true that you would then have to live there?
Yes, for certain phases you have to be quite close by. That was probably one of the reasons why we got the job for the Berlin airport, because our office was local. For the first few years we worked only with plans, until about two or three years before the end phase, when we began to travel to the construction site.
The closest major airport projects are probably in China, aren’t they?
Yes, then we’ll open a small office in China. (Laughter)
And to sum up for the conclusion?
It was really great and a lot of fun. We are very happy with the project. Above all, because it lasted so long. It is highly interesting to accompany a project of this magnitude over many years. It was exciting at every point. You grow more and more with the project and the project partners, whom you get to know and with whom you build up trust.