NSB Traffic Service is Norway's largest and leading company in the cleaning of passenger trains. We are located at 23 bases a ... nd cleans 48,000 trains a year, with the clock staffing. Our 270 employees have high professional competence and uses a very well-developed technology for documentation of our deliveries. - Our goal is to be the preferred service provider in and around trains. We offer graffiti removal and protection against graffiti. By continuous removing tagging and graffiti, we se big reductions. After the removal we protect the surface so the paint does not damage the surface and it is easier to clean (Cost effectiv). read more