Will telecom hang warning signs when working high above the road?

The telecom equipment you are talking about should be optical cable. This parking is no problem. We can see that there will be a warning sign "No Digging" on the optical cable. The optical cable is not so fragile, so it is no problem to park nearby. If you are worried about affecting the signal, it is even more unnecessary. This is a signal transmission through an optical cable, so don't worry.