If it's 1 to 1 then yes. People cost a lot more to transport on roads than bulk freight so it’s a net gain to the economy.
Edit: The total cost to the economy to send a single person per car is about 60c/mile if you include the cost of maintaining and expanding highways / increased congestion on existing highways. It costs to use busses, but the benefit is primarily from getting people out of private cars and high speed trains are much better at this.
Edit: The total cost to the economy to send a single person per car is about 60c/mile if you include the cost of maintaining and expanding highways / increased congestion on existing highways. It costs to use busses, but the benefit is primarily from getting people out of private cars and high speed trains are much better at this.