Skytunnel
this term was developed on Coruscant to describe the shielded traffic lanes which wound through the upper levels of buildings across Galactic City, connecting main traffic lanes with each other. These skytunnels were constructed with openings at specific levels of several buildings, with connecting tunnels between buildings, creating a single pipeline for traffic to move from place to place. Skytunnels were developed to be bombproof, so that terrorists couldn't disrupt traffic flows. They also contained high-level tracking systems to monitor traffic and ensure that vehicles maintained safe speeds. Skytunnels were created to solve two problems. First and most obvious was the continual upward development of Galactic City's spacescraper buildings, which often rose into established traffic lanes. Second was the need to allow traffic to move through private or high-security zones, without allowing access to these zones.