Eli5: why is it that when driving down some highways the sound from the road or smooth, and sometimes it goes “ DUGA DUGA DUGA DUGA”. For reference: it all looks like blacktop.

Question

Eli5: why is it that when driving down some highways the sound from the road or smooth, and sometimes it goes “ DUGA DUGA DUGA DUGA”. For reference: it all looks like blacktop.

In: Engineering

Answer 1

To further clarify. The roads themselves aren’t bad, there’s not potholes there’s not anything wrong with them. But sometimes you’re driving down the highway and it looks fairly smooth and you’re just getting that rhythmic sounds

Answer 2

I know at least where I live. There are some small black lines that run perpendicular to the roads surface. This is for a speed/red light camera

There are similar kinds that also measure traffic flow/density and number of cars etc. They use this data to plan how to improve, fix roads and give more money to transurban because the government is corrupt.