You Must Download dataset first from this repository: 

https://github.com/Davidham3/STSGCN

Uncompress data file using `tar -zxvf data.tar.gz`

Make Sure this dir have four folders: 

```
FS-TFP\DATA\TRAFFICFLOW
├─PeMS03
├─PeMS04
├─PeMS07
└─PeMS08
```