Haussmann went to work immediately on the first phase of the renovation desired by Napoléon III: completing the "grande croisée de Paris", a great cross in the centre of Paris that would permit easier communication from east to west along the rue de Rivoli and rue Saint-Antoine, and north-south communication along two new Boulevards, Strasbourg and Sébastopol. The grand cross had been proposed by the Convention during the Revolution, and begun by Napoléon I; Napoléon III was determined to complete it. Completion of the rue de Rivoli was given an even higher priority, because the Emperor wanted it finished before the opening of the Paris Universal Exposition of 1855, only two years away, and he wanted the project to include a new hotel, the Grand Hôtel du Louvre, the first large luxury hotel in the city, to house the Imperial guests at the Exposition.