Contributing factors to traffic congestion in Downtown Miami

Advocacy letter

Topic: Must be .. to find and focus on one of the contributing factors to traffic congestion in Downtown Miami. this will be the main topic. Must be one specific topic not broad. As you can see in the instructions the goal is to build on what I have done so far which are the problem statement and literature review. However, and I have to revise my statement problem paper and literature review paper since i was not specific about one specific topic. I will place another other for the literature review paper. so, the topic should be to find one factor that contribute to the traffic congestion in Downtown Miami.