Here are the answers to the tutorial questions:
1. The 4 main types of transportation are: road, water, air and rail transports.
2. The 2 main types of airlines are: scheduled airlines and chartered/non-scheduled airlines.
3. The 5 main types of trains are: high speed trains, inter-city trains, commuter trains, rapid transit trains, and light rail trains.
4. 5 characteristics of coaches are: comfortable seats, luggage racks, passenger service units, on-board restrooms, and onboard WiFi.
5. 6 reasons some people don’t cruise: motion sickness, small spaces, large crowds, risk of norovirus, high