Yea, my suggestion is " Geographical Information System in Transportation Planning and Building footprints for points of interest".

You can use GIS for evaluation access to some services.

Hello, you could work on accessibility related to wealth. A lot of transport network shut down during lockdown and now face different kind of restrictions. While car owner remain quite free, what about people relying on public transport? People living in remote places? Entrepreneur who need to travel abroad?

If you really want to work on global transport, meaning international transport, you could also explore work commuting between countries (e.g. France/Germany, France/Belgium, etc.). People working abroad might have experienced big disruptions linked to covid, even now with the restrictions and maybe future lockdown.

Finally, I think the UK might represent an interesting case study, since London remains the biggest trade place in Europe and is strongly affected by the 15 days quarantine rule for many countries.