We already have traffic signals at every intersection and street lights through the entire eight-block area. They work. Could they be improved? Sure. But for $4 million? Even if cars on Broad Street never had to stop at an intersection, and lighting was such that a person could read the paper at midnight, it wouldn't be worth the cost.
I realize that most of the funds ($3 million) are "economic stimulus" from Washington, D.C. However, it's not "free money." It's our money. We gave it to the federal government in our taxes.
Rather than replacing the lights because we can, we should be asking ourselves whether we should replace something that works with something that's new just because the federal government is giving us our own money back.