Financially, however, the Pennsy had high operating costs, and was barely surviving in the face of competition from trucks. Passenger traffic made up 20% of the business, and had very high operating costs, especially in suburban commuting runs. The threat from automobiles was ominous. | Financially, however, the Pennsy had high operating costs, and was barely surviving in the face of competition from trucks. Passenger traffic made up 20% of the business, and had very high operating costs, especially in suburban commuting runs. The threat from automobiles was ominous. |