Definition:
"Travel by" is a phrase used to describe the method or mode of transportation someone uses to move from one place to another. For example, if you say, "I travel by train," it means you use a train to go to your destination.
Hit the road: This means to start a journey or go on a trip.
Get on the road: This means to begin traveling.
"Travel by" is a simple and useful phrase to describe how you get from one place to another. Whether you travel by car, bus, or plane, you can use this phrase to communicate your mode of transportation effectively.