The phrase "major intersection" refers to a point where two or more roads cross, usually busy ones, which have a significant impact on traffic flow and are commonly controlled by traffic signals or signs. Full definition
At the edge of the only major intersection in the city center was a sign saying that they would be having a film festival in two days. (flashpackerhq.com)
It also helps to place signs at major intersections in the area to give people a place to start from. (beginswithyou.net)
After the first major intersection of Ray Lawson & Country Court Blvd look for the shopping plaza on the left hand side. (hoyes.com)