An overview of the 3 types of passenger trains, common emergency problems, and a useful 17 Point Pre-Planning Rail Response Checklist. During the early twentieth century, trains were the primary means of long distance passenger transportation. Although planes and cars have replaced trains for the top means of distant commuting, passenger trains are still a popular way to travel. There are three basic rail passenger modes: InterCity Trains, Commuter Trains, and Tourist Trains.