Chicanes refer to a series of obstacles or turns that are meant to slow down traffic. However, there are many antonyms to this word, which would suggest a more streamlined and smooth flow of traffic. Examples of antonyms for chicanes include Freeway, Autobahn, Motorway, Straightaway, and Boulevard. All of these terms suggest a wide-open roadway, free from curves or obstacles. By contrast, chicanes can be frustrating to drivers who must navigate them, causing delays and congestion. Therefore, it is essential for city planners and engineers to consider alternatives to chicanes in order to keep traffic moving efficiently.