If you have lived in a big city like London, you will know that getting around there is not always easy and often time consuming. Luckily, there is usually a good choice of means of transportation, depending on your needs: For longer distances, you might consider using public transport. If you know where you are going, you might rather decide to drive yourself, cycle there or walk if it is close. If you don’t want to worry at all about how to get to your destination, you will probably hail a cab instead, and using a taxi has it’s advantages: Taxi drivers take you wherever you ask to go whilst you are able to relax in the back seat and being dropped off at the front door of your destination. Even though taxi drivers in some companies and cities embrace GPS technology in their vehicles, black cab drivers in London do a remarkable job by offering their services without consulting any maps or GPS! But how is this possible?