1.   Once we were off the main freeway, the trip felt more like a vacation.

2.   Melbourne is presently served by three main freeways that carry traffic to and from the central business district but stop short of the business center proper.

3.   The demonstrators, who were demanding wage increases, walked onto the main freeway that circles Mexico City.

4.   Four communities between Montreal and Quebec City were cut off by high waters and portions of the main freeway between Montreal and New York were closed.