Today, the Dutch Railways (NS) is forced to extend their capacity, because of the increase in train passengers. This extension will be realised by using longer and faster trains, soon also scheduled highly frequent. But these solutions are expensive, and in addition they cannot be extended much further to provide the necessary capacity. The NS passenger however, prefers a free seat and not feeling crowded. Another approach to increase the chance of a free seat and reduce the feeling of crowdedness for the passenger, in addition to longer/faster/highly frequent trains, is to influence the current unequal spreading of boarding passengers to make more efficient use of the available train capacity. This report investigated the possible means to change the boarding behavior of passengers to give them a more comfortable train journey. Unequal spread on the platform was determined as a type of spread that should be improved: The other types of unequal spread, during the day and in certain directions, are related to external social factors (work, private life) are therefore difficult to change within the perspective of a design project. The unequal spread on the platform is caused by passengers that stay close to the platform entrances. Since most of these passengers board at that location, and do not like to walk through the train, they also cause local crowdedness inside the train. A qualitative research has been done to research the reasons for this platform behavior and to test envisioned possibilities to change this behavior (visualising crowdedness or train length with an information system). This qualitative research showed that this visualising crowdedness did not have the expected outcome of a better passengers’ spread. Passengers want a free seat, but more factors than just crowdedness (number of alighting passengers, behavior of other passengers on the platform, how fast you can get into the train) play a role to obtain this. Information on just crowdedness therefore does not motivate passengers to spread. The results led to the design of the Platform Positioner. The Platform Positioner information service can provide passengers with five types of personal boarding advice on where to board: for an efficient transfer/follow up journey, first class, the silent zone, with a bike with a wheelchair. The advice are generated using three data sources: Real-time train length information provided by the NS Tracking and Tracing system, the platform layouts of train stations from a database, and information on train layout provided by a functionality within NS On Board Information System (OBIS). The last two sources do not currently exists as such. This boarding advice on the ideal platform position differ per passenger, and so passengers board at different carriages of the train. This will create a better spread on both the platform and inside the train, while anticipating on the user’s motivation to have a more efficient and comfortable journey. The Platform Positioner is provided to passengers by NS mobile travel information; directly available with a mobile phone. Or NS Service personnel could inform travellers, since the information is available on their NS PDA. The Platform Positioner was evaluated in two usage test on usability, understandability and appreciation to improve the design. The results were good: Passengers can use and understand the Platform Positioner information service easily, they appreciate the advice and are motivated by to move across the platform. Certain aspects were not fully examined in this project and need to be further investigated in order to create the actual Platform Positioner. A feasibility study on the following aspects is therefore recommended, possibly followed by a test with a working prototype. The improvement or disadvantages on the spread of a bigger crowd needs to be investigated. The possibilities of data links between Tracking and Tracing, OBIS and NS mobile travel information, need to be investigated in more detail.