It is 8 lanes wide. In the Basse Ville, Boul. Charest is at the bottom of the slope. The Ramparts between Haute Ville and Basse Ville Between Boul. Charest and the Haute Ville are stone cliffs or ramparts that are about 7 meters high.
Several streets access the upper and lower city.
There are stair access between the Haut and Basse Ville. However, this presents a challenge for easy movement to and from. The ramparts stop for 6 streets, then start again west of Rue Marie de l' Incarnation, and the next road passing is about a dozen streets west at Av. This is important for two reasons, getting to the east side of the perimeter, and getting to a major hospital Hotel Dieu at 1 o'clock, just three streets from the perimeter on Cote de Palais and Rue des Ramparts. It is a beautifully preserved section of the city, marred by the incessant tourist shops.