Good morning, everyone. Today we're going to look at the history of urban transport. In the early 20th century, many cities relied on electric trams, which were clean but slow. However, by the 1950s, the rise of private cars led to a decline in tram systems. Some cities, like London, replaced trams with buses, thinking they were more flexible. But in recent decades, there's been a revival. For example, Manchester reintroduced its tram network in 1992, and it proved so successful that it was extended twice in the following ten years. Interestingly, the main reason for this revival wasn't just environmental concern, but also the need to reduce road congestion.