Today more people are travelling than ever before, why is this the case?

It is certainly true, peole are travel more than before. Because of the increasing facilities in transportation. In olden days, walking was the only mean of journey. Afterwards bullock carts, horse driven carts was invented. Moreover invention of steam engine was the milestone in travelling. Since the train was introduced individuals planned thier move.

.... this has several issues - grammar , spelling ...
It is certainly true that people travel more than they did before.


This is an incomplete sentence. You need to complete your idea.
What is the purpose of writing this essay? Is it for TOEFL or IETLS? You should have included the prompt in your essay!

People travel more nowadays than before because of modern day transportation facilities .
in olden days...it should be written as In old days,
Horse driven car were invented.
After the introduction of trains and planes, travelling became easier and faster.

Thank you for ur suggestions.

Something I was told that helps with sentence fragments is to put "I realize" in front of each individual sentence. If it stands of its own then it is a complete sentence. If that sentence only makes sense with the one behind it then it is a fragment.

I realize Because of the increasing facilities in transportation.

The sentence above needs more information so that it can stand on its own.