Houten four-tracks was the expansion of the railway line at the municipality of Houten from two to four railway tracks. This concerned the first railway project for Bjorn, and he supervised this process as a Project Controller from budget to completion. Completely new to the matter of railway construction, Bjorn has shown his dedication to learn and achieved many successes within this project, especially in the area of extra work settlements with the client. Bjorn visited the construction site on regular basis as he finds it important to connect with the place where the work really happens.