score:10
There are numerous cameras along the D1 motorway, all of which are available online. There are indeed roadworks on the approach to Brno, but you should be fine outside the peak hours:
Assuming you don't drive between 07:00-10:00 or 16:00-19:00 on weekdays, I'd take the D1.
Upvote:3
Google Maps (https://www.google.cz/maps) navigation works very well in estimating the traffic on D1. Even ahead of time you can check the route, set date and time and it gives you reasonable estimates (i.e. 2h10m, 2h40m with usual traffic). If you have mobile-data, use it online while on the road to get alternative routes in case of unexpected accident-related traffic jams. Waze (https://www.waze.com/) also works well.
Upvote:6
Now we are back at the campsite after driving Prague->Brno->Prague and it was not as bad as I imagined.
If we had this many road works in Sweden there would be a serious delay and some complete standstills. But here the trafic just moved along as it's supposed to.
I'm impressed.
Upvote:7
Busy - it depends on a day. Friday is bad, everybody gets out of Prague for weekend. There is a reconstruction taking place and you can expect traffic jams.
I like Rodos.vsb.cz service, it shows you traffic information in real time. It is better than Waze as it uses sensors inside the road.