system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why do US interstates have truck weigh stations, but there are never any trucks getting weighed?
gpt
Weigh stations do get used, just not often. They are more common near borders. Basically the companies comply to the rules restricting weight under the threat that weigh stations might be in use. Its all a balance of "does the government want to pay people to run this weigh station today" and "does the government want to pay to fix the road earlier due to damage from overweight trucks"