The Path Advisor is a digital map of the elevators and building numbers on HKUST's campus. The elevator or "lift" number acts as an address to help narrow down where your classroom will be. Classrooms were difficult to find without the app because the campus is intricate, with multiple elevators and hallways that take you that can take you to the same area.
For those of you with a smartphone, you can download HKUST's free Path Advisor App here:
https://itunes.apple.com/hk/app/m.hkust/id332536360?mt=8
If not, you can also use the online Path Advisor here:
http://pathadvisor.ust.hk/
If you are coming from the airport, you will likely be arriving at HKUST's North Bus Stop.
From the the North Bus Stop, you'll take a short walk up to UST's Atrium. Then, there are usually a series of elevators you'll need to take to reach the dorms or classrooms. I've included a screenshot of this path below using the online Path Advisor tool, but the app works much better than the website.
North Bus Stop > Hall IX Example
HKUST was supposedly designed so that all of the classrooms and buildings connect with one another. While this can be convenient if you know where you're going, it can also be a nightmare trying to find your classroom. Try to do a little exploring on your own to find shortcuts between classes.