We want to give users an idea of how much emissions transport offers in Stockholm city, where we compare car traffic to public transport. This information service is for residents of the city of Stockholm and secondly SL. The site will be open, but we believe that the number of users will be 30,000 per year. We call the API through the Web front end to get real-time information about SL-transport. We can not have any cache. The service is a real-time map that automatically updates every minute, possibly more often. It will happen in all cases, two requests per minute.