Alphand also had to build a network of roads, paths, and trails to connect the sights of the park. The two long straight alleys from the old park were retained, and his workers built an additional 58 kilometers of roads paved with stones for carriages, 12 kilometers of sandy paths for horses, and 25 kilometers of dirt trails for walkers. As a result of Louis Napoléon's exile in London and his memories of Hyde Park, all the new roads and paths were curved and meandering.