Detroit's public transportation system is centered on Woodward Avenue. The city may be navigated via route maps that link related stops to one another. The new Detroit District Library located on the circulation spine of Woodward is organized in a similar manner, using multiple pathways that lead users to their desired destination. Books line the perimeter of the building, while computer stations are positioned within the pathways defining the interior rooms. The rooms serve a variety of functions including quiet reading, children's reading, exterior reading, and public meeting. The book stacks are structural, allowing a lighter and thinner exterior glass envelope that controls natural light through variable levels of translucency.