Spatio temporal dataset sources

Hi

I have been struggling to find topics for a research papers (i am a phd candidate) in the domain of public transport, communications (including space) or environment that contain spatio temporal information. I very much enjoy working on development of neural networks but i struggle to find good topics to research and apply my skills from neural networks. I was wondering if there is someone who has been in the same situation but somehow got over it? Or even …

apply communications dataset deeplearning development domain environment good information networks neural networks papers phd public research research papers skills space struggle temporal topics transport