Check out this scientific analysis that is the reason Broomfield withdrew from the Jefferson Parkway fiasco.
https://files.constantcontact.com/7a350e88301/d1da11fc-200f-4dc9-a283-11d5f2102511.pdfhttps://files.constantcontact.com/7a350e88301/d1da11fc-200f-4dc9-a283-11d5f2102511.pdfhttps://files.constantcontact.com/7a350e88301/d1da11fc-200f-4dc9-a283-11d5f2102511.pdf