What will enable you to have a more accurate perception?
requesting permission to talk
requesting clarification on any statement you don't understand
O requesting an objective point of view
requesting a confrontational conversation

The sentence needs a descriptor of exactly "what" will happen at gurley and marina. in this case, it is the light at the intersection turning green. in this case, the sentence could be rewritten as "the light at the intersection of gurley and montezuma will turn green exactly three seconds after the light at the intersection of gurley and marina."