Yes, a bus is considered a common carrier and therefore has special duties of care that it owes its passengers. A common carrier is an entity such as a bus, cab or train, whose business is to transport people or goods from one place to another.
In Colorado, a common carrier has a duty to its passengers to use the highest degree of care in proportion with the practical operation of their business.[1] A common carrier is obligated to provide its passengers with a safe place to exit and board the vehicle.[2] Additionally, a common carrier has a duty to refrain from creating any condition that would subject its passengers to a risk of injury.[3]