Yes subways are better than trains.
mass transit
Subways allow commuters to travel to the city via trains that go underground so as not to interfere with above ground transportation.
More than likely cheaper and faster transportation is referring to mass transit like trains and subways.
flying, ships, cars, trains, subways, bus
Subways
there is aior planes,trains and subways
Cars, trucks, motorcycles, buses, trains, cabs, subways
Trains, planes, taxis, buses, motorcycles, boats, Tuk-Tuks and sky trains and subways if you were in Bangkok.
no ther not
Trains are better for the environment - as they produce less pollution per passenger than cars do.
The types of public transport include ferries, trolleys, trains, subways, airplanes, and buses.
Airplanes, subways, trains, helicopters, telephone, cell phones, etc.