The phrase "main intersection" refers to a place where two or more roads meet or cross each other, usually being the busiest point in a city or town. Full definition
Directions from main intersection could be more detailed - especially as most people arrive late afternoon after long drive! (travelground.com)
Newspaper ads can indeed spawn visitors, but I've found strategic placement of numerous professional - looking signs at main intersections usually attracts sufficient traffic to justify the time and effort. (remonline.com)
My senses calmed as I stood about a block from the next main intersection. (relevantmagazine.com)