| 1 | Motor carriers are more flexible than other modes. | |
| 2 | The amount of freight transported by motor carriers has steadily increased over the years. | |
| 3 | No other mode can provide the market coverage offered by motor carriers. | |
| 4 | There are five transportation modes - motor, rail, air, water, or pipeline. | |
| 5 | It can be adjusted to the standard sizes of containers for trains, trucks and ships. |