Interactive ads are much more likely to hold the attention of passerby than their static counterparts. Making even a rudimentary connection with the customer is a key component to successful modern marketing. This subway ad not only interacts with people around it, but with the subways that are coming and going as well.
These interactive ads are fitted with sensors that can sense when trains are approaching on either side of it. When the train comes close and whizzes by, the ads image turns into a woman with her hair flow wing in the wind whipped up by the train.
The ad is incredibly simple but having that interactive aspect, especially in relation to what is going on around it, is key.