watchthe1369:Take a welding rod and a round target in neon orange attach it to the grinder. Make sure the orange dot can be seen in one of the truck mirrors. Make a circle of tape to blot out that dot when the truck is at the right distance. put a neon stick at the top of the dot, when it dissappers he is getting too close. Now you do not have to beat the horn
Der beinsteiner:What the competent traffic authority has allowed is not a cow skin. Speed 60 in traffic management. The regulations see here however 100 km / h ahead, or also 80 km / h. But no 60. Why does it work otherwise, just not here?