The game requires you to do deliveries after deliveries. This game is continues since after delivering the cargoes to its destination. The other factory will require you to deliver something to another factory. The cargo is different, but the objective remains the same. You still need to deliver the cargoes to its destination.
There is a boost that can help you go faster, but it is not recommendable since you might loss all of your cargoes or worst of all, you might end up crashing your truck. There is a time limit to which you need to make the delivery, but it would be wise to take your time a bit since the road ahead is not flat.