Trains are built sort of like cars. They do each piece individually. They will either be built on the track or will be lifted by crane onto the service track that leads out of the complex.
*Added - Most train cars (passenger coaches, freight cars) have a body that "floats" on its "trucks" (the wheels, axles, suspension). The trucks are pushed or lifted onto the track and then a crane will lower the body onto the trucks.
If a moving train has "derailed" (gone off the track), there are special "re-railers" laid down by workers that force the wheels back onto the tracks, and in most cases, the train can simply continue.
You don't tie people to the train tracks. You can hogtie them and put them on the train tracks though.
He ran across the train tracks.
It attracts cattle to the tracks. Cattle on the tracks + unstoppable train = a lot of dead or injured train passengers.
Train tracks are magnetic.
train tracks or a railroad
Train tracks
By putting it in water and letting it dry. Then put it in a box for a hour.
Yes. Train tracks are metal because if they were wooden such fast moving train wheels will cause friction on the wooden tracks, setting them on fire.
You can acquire a cannon for your train on Spirit tracks.
Railroad tracks are made from steel.
Sure, make the train tracks from materials that (in total) are lighter (less dense) than water. Presumably you want the train tracks to support a train as well; in that case, the weight of a certain piece of train tracks, plus the total weight of the train, should be less than the weight of the water displaced by the train tracks.
People walk on train tracks for different reasons. Some people walk on tracks because it's a shorter distance to get where they are going. Some people may walk on train tracks because they enjoy the quietness of the paths that the train runs along. We used to walk the tracks when I was a teenager because we picked the raspberries that grew along the train path.