Check if position is in street intersection

[OJdoesIt]

Does anyone have any idea or suggestions with checking if an entity or a position is in a major intersection, i.e. intersection with traffic control light?

I suppose one way is to check if a position is within a certain radius of a traffic control light prop. Does anyone know how to do that?

I'm looking to do this with ScriptHookVDotNet or with RagePluginHook.