Choose the right vehicle to travel: Passengers after planning their trip they should plan about the means of transport. See that they provide complete comfort even though they are either public or private transport vehicle.
Booking the services: Plan your trip in beforehand; probably it should be one week before the travel. Rent either with public/government services or private services. Check whether the services are complete like customer services and licensed legally. Be careful if the services are private or not licensed.
Understanding the cost: Before booking you trip whatever the services may be. While using your credit card for online booking be careful about the security. Do not disclose your password to anyone, it may lead to scam if you miss use.
Time management: On the day of journey, even it is a public transport or private transport is careful and reach the place of pick up on time. Do not go late, you may miss the vehicle or train if reached late.
Return journey: Check your return journey date and plan accordingly, so that you will not miss your routine work. If you are travelling in a public transport reach the pickup place 60-120 minutes before journey.
Travelling in your own vehicle; check whether you are safeguarded with safety belts, carry your driving license, and other registered papers of car.

Long journey!!!

Be careful while travelling along with your friends and family members. Every traveler should be very careful. Sometimes travelling will be a nightmare hut it always depends upon the co-travelers and the mode of transportation.

Travelling in aero plane or helicopter let the travelers plug cotton swabs in their ears, so that this may prevent from motion sickness and nausea.
While travelling in public transport, check about the ticket and reach the place of pickup on time so that you shall not miss your journey.
While renting a car for your trip better read the terms and policies carefully before booking the trip. Choose the correct travel services like location voiture which you want to go with and enquiry about their services. See that their services, log onto their website and check the reviews written by the travelers.
See that your luggage bags are locked properly, when you are travelling using a public transport. Check the tickets before your journey, so that you will not miss them.
Check the cost of the services before booking the tickets. Carry first aid and some OTC medicines like pain killers, analgesic and anti-emetic drugs. This shall be very useful in case of emergency.
Carry light weighted bags so that this shall make your journey easy and comfortable. In case of pregnant women, check that she is prone to restlessness and carry a water bottle and insulin injections if she is diabetic. In case of theft or medical help it is better to approach management services for help.