o Levels 20 to 29 were not finished. They were fitted for habitation but the population demand was not met so construction was halted, but there were many who didn’t want to live on the hab levels and moved up to these. These levels are open to the outside, that is they don’t have any vertical walls or structures other than the load bearing columns and floors. Over the centuries people have brought their own building materials to these levels and made their own structures. These are the levels where you can find hole in the wall hovels right next to “mansions.” Buildings are made from everything from stone to brick to plasti- and yes, you will find houses made of straw and sticks here if you look for them. Some times these are called the market levels or the work levels. I won’t go into a lot of detail about these levels but a couple of things of note are here. The Grand Hospital is here as well as the Collegium. There are foundries and factories here. Oh, because someone is asking “what about the stairs” (thank you Marley) I need to tell you about moving around in Haddar. There are no roads, so no cars, but that doesn’t mean that everything is on foot. All over the city are huge elevator banks, with individual platforms ranging in size from ten by ten to the size of a football field move up and down transporting goods from the bottom to the top and back again. Moving around the hab levels is done by walking or by transway- a moving sidewalk like the ones at the airport but each about as wide as a standard lane of traffic. Transways will be lined up side by side with faster ones on the outside. It is just a matter of moving from lane to lane. There are roundabouts switchspots at places that the Ethereals thought would be convenient but the whole system makes the British Rail look simple by comparison. In the market levels or the park levels there is foot traffic and some transways, but not as many as in the habs. In addition you will see rickshaws and human powered transports like bicycles carrying both people and goods. Sometimes you will see carriages drawn by Ottos, but this is really rare only a very few Ottos are under human (or Sime) control.
Now when you get to Topside (the unofficial name for level 51) you will see more exotic wheeled transports that are wind powered.