The city of Detroit has started preparations to welcome the NFL Draft as the host city in April. Starting Friday, traffic will be closed at sections of Randolph, Monroe, Farmer and Bates Streets near Campus Martius. Plus, a recent study says pulse oximeters don’t work as well on patients with darker skin, and more. Do you have a community story we should tell? Let us know in an email at detroiteveningreport@wdet.org.