At the beginning of the "Belle Époque", the horse-drawn omnibus was the primary means of public transport. In 1855, Haussmann consolidated ten private omnibus companies into a single company, the C.G.O. ("Compagnie générale des Omnibus") and gave it the monopoly on public transport. The coaches of the CGO carried twenty-four to twenty-six passengers and ran on thirty-one different lines. The omnibus system was overwhelmed by the number of visitors at the 1867 Exposition, thus the city began to develop a new system of tramways in 1873. The omnibus continued to run, with larger cars that could carry forty passengers in 1880, and then, in 1888–89, a lighter vehicle that could carry thirty passengers, called an "omnibus à impériale". The horse-drawn tramway gradually replaced the horse-drawn omnibus. In 1906, the first motorized omnibuses began to run on Paris streets. The last horse-drawn omnibus run took place on January 11, 1913 between Saint-Sulpice and La Villette.