Before revision: Schedule padding is, naturally enough, only required for transportation that operates on a fixed, published schedule, including public transport and airlines, or where timed connections are important, such as in many areas of passenger and freight transportation where the things being carried need to be transferred to another vehicle.
After revision: ,Schedule padding is, naturally enough, only required for transportation that operates on a fixed, published schedule, including public transport and airlines, or where timed connections are important, such as in many areas of passenger and freight transportation where the things being carried need to be transferred to another vehicle.