The effort 😮‍💨 For the best part of two years, Fraser has been creating this piece of London Underground art. Featuring dozens of small LED lights, it shows trains moving in real time using TfL and National Rail API's, which predict the status of each train - although he doesn't use the art in order to catch the train on time! During testing, he sometimes thought his code was broken - but really it wasn’t; it was just blank due to delays and Tube strikes. The software engineer says one of the