SpaceX recently announced their plans for creating a 1-hour flight service using BFR rockets which would fly higher than commercial airliners but lower than ISS. It implies that within 1 hour it would be able to reach any point on the globe (with a suitable launchpad).
I'm curious and a bit worried about the potential of intersecting trajectories with airliners and satellites on lower orbits. There are also plans from SpaceX to launch around 12 thousand satellites starting in 2020 to serve internet connection. All of this makes me wonder what the chances are of colliding with so many flying objects.
There's the famous XKCD illustration for "going to space", and to me it seems like BFR is going to fly in a similar manner. What are the actual trajectories going to look like? How will they compare to airline trajectories?
Also, I'd like to see a visual representation of intersecting airspaces of airliners, existing satellites and the planned internet satellites, to get a general idea of it all.