The Trans-Canada Highway is not always the preferred route between two cities, or even across the country. For example, the vast majority of traffic travelling between Hope, British Columbia, and Kamloops takes the Coquihalla Highway via Merritt, which is a freeway, rather than the semi-parallel, but longer, Trans-Canada Highway route via Cache Creek, which remains a windy two-lane road. Another example is that much long-distance traffic between Western and Eastern Canada will drive south into the United States and use the Interstate Highway System, rather than the long, windy, two-lane Trans-Canada Highway through Northern Ontario, which is slow and subject to frequent closure.