For the property in question, it would not have been the case because there was only one entrance to the subdivision, which was on the opposite side of the community. No driver would logically choose to turn this corner to take the long way into or out of the subdivision, except for the newsboy, garbage truck, and postal carrier. Nonetheless it was ruled out simply because it was a corner. (ergo high imaginary traffic count) This is real estate. Logic is optional, not required.
Oh Keith, John Souerby mentioned setbacks a week before you said that no agent had mentioned "easement" . Though a setback and an easement that you described are for different purposes, I think John deserves credit for mentioning a setback.
I once had a very large corner lot and kids walked through it to cut the corner on their way to school. They actually wore a pathway into the grass, plus dropped trash and sometimes just plopped down under the trees in the front lawn to hang out. I installed a white picket fence - problem solved.
Thanks for your question!