How can I avoid speeding?

Solution 1:

The only thing you need to do is pay attention to the speed limits on the road signs at the side of the road. The signs are round with red edges and a number in the middle. Once you know the speed limit, just keep your truck's speed under the limit by checking the speed-o-meter or top-left corner of the navigator.

While driving in the UK, these numbers will be miles per hour, otherwise they are kilometres per hour. In towns the limit is 50 km/h (or 30 mph in the UK). Outside of towns it's usually between 50 and 110 km/h. You will not get a speeding ticket for driving 1-4 km/h too fast.

Another thing to note is that you can't get a speeding ticket for driving too fast unless a traffic camera or one of the patrolling police cars catch you doing it. You can usually see warning signs about such cameras right before them so you know to slow down. The warning sign always includes the camera icon like in the image below.

Update: The game now also shows a speed limit in the bottom corner of the navigator. This one can be lower than the signs by the road, but traffic cameras go by the signs, not the navigator.