Amelia listens attentively in class and writes down important information quickly in bullet points and disorganized paragraphs so she can refer to and organize them later

Okay but what do u need to know I will anwser it if I am informed

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."