"The terminal, concourses are the agoras of the future city, time-free zones where all the clocks of the world are displayed, an atlas of arrivals and destinations forever updating itself where we briefly become true world citizens."

In Star Wars it seems transportation has evolved to the degree where all citizens are world citizens, where cities can evolve to encompass whole planets. With the ability for intergalactic travel comes "the universal citizen," one connected not only to his/her own world, but to many other worlds and many other species. This increase in travel requires an increase in infrastructure, and a greater amount of urban area devoted to transportation.

An urban runway on Coruscant

A smaller scale runway

Whether on the planet of the Imperial City, or the smaller, more secluded Wookiee world of Kashyyyk, Lucas presents airports, or space-ports, as a tremendously important urban infrastructure to these worlds.

The first view of Kashyyyk, from the air

Another necessary infrastructure with an increase in both inter-planetary and intra-planetary vehicular travel is the requirement for parking. Greater parking area is allowed in that the third, Z-dimension may be used as in stacked parking. However, this increase in verticality also requires greater vertical connections internally in buildings.

Parking pads surrounding the senate on Coruscant

The interor of a sinkhole on Utapau, lined with parked ships

Movement of traffic expanded by vertical layering

Beyond merely allowing for greater infrastructures, the architecture also can play a key role in the plot, as Obi-Wan Kenobi captures Count Dooku by the space-aged equivalent of crawing through the air ducts.

Service systems play a key role in the confrontation with Count Dooku on Utapau