Citymapper is one of the best apps to download if you live in a big city with a complex public transport system. Originally developed for London, it has expanded to several cities around the world. Through this, they have learned how people behave and how most transit networks in the world haven't adapted to the 21st century.
By developing their own "smartbus" Citymapper is looking to partner with transit networks around the world to develop a new, smarter take on bus transportation. The bus features USB charging, and a custom software that estimates more accurate arrival times and routes, as well as aiding the (human) drivers through their journey.
Best of all, they are making their platform open to everyone so that they can get to the future quicker.