Answer:
Cost of rebuilding roads damaged by trucks heavily loaded with goods
Step-by-step explanation:
This a classical example of a negative external cost, also known as a negative externality. An externality is a cost that affects a third party. A third party in an economic transaction is someone who is not the producer or the consumer.
In this example, trucks are heavily loaded because a firm (the producer) is supplying the demand for goods of consumers. However, the damages on the road are affecting every person who lives in the area, whether they take part on the transaction or not.