What are some Advantages of Transportation by Wagon/Foot during the Orgeon Trail and Disadvantages of Transportation by Railroad during the Orgeon Trail?

The worst disadvantage was the possibility of dyeing more easily and getting stuck in the mountains The Donner party got stuck in the mountains and more than half died. Since there was no food, they had to go to cannibalism by eating the people who had died. The only good thing is that they were going to a place that had more free land. Hundreds to thousands died on this dangerous journey. You could die from illness to wagon accidents.