We've developed a plug-in for QGIS, discussed here: https://blog.podaris.com/going-geospatial/
This plug-in doesn't work with the latest version of QGIS, however, and we haven't been able to allocate resources to update it. The aim is to do so and then make it open-source, as an example for how other 3rd-party software can talk to our API. If this is something you'd be interested in working on, perhaps we could open-source it sooner rather than later. Get in touch at [email protected] if you're interested.
There is Vector Tiles Reader plugin [1], but it doesn't render fonts on QGIS 3 at the moment. I was able to use it with a map server to add a vector base map, and overlay my routes and stops (although still missing the offsetting bit).
[1] https://github.com/geometalab/Vector-Tiles-Reader-QGIS-Plugi...
My partner is a mechanical engineer, and she says it's easier to create MTA/MBTA type of network maps on AutoCAD, but I want something with the geography still intact.
I'm fairly new to QGIS, and I'm enjoying a lot of the smaller things about it, especially QGIS 3. We were mapping some minibus taxi routes over the past month, and I needed to do some conversion of files, export PDF maps and a few other things (snap to route, distance calculations). I normally write something from scratch with turf.js or rustgeo, but I found QGIS very satisfactory.