The Atlantic City Expressway is a highway that runs from outside Philadelphia to Atlantic City, New Jersey. It is notoriously congested during the summer weekends when many people are driving to the beach about the same time. Because drivers who decide to take this road ignore the impact of their driving on overall traffic congestion the result is cars on the road than the efficient number of cars and a deadweight loss is .

In simple words, A negative externalize or dead weight loss relates to the expense to economy that is caused by market mismanagement, when market forces go out of balance. Primarily utilized in economics, the loss of dead weight may be extended to any deficit induced by inadequate prioritization

In the given case, the cars on the road are more than the handling capacity thus, it will obviously result in dead weight loss. .