On most transit vehicles there is inadequate room for a large service animal to lie down. Having them sit up the entire trip is difficult as the vehicles do not operate smoothly and have frequent stops and start ups jostling the dog. The flooring is often slippery which adds to the problem of maintaining the dog's balance and avoiding joint injuries. When the vehicle is crowded, trying to keep one's dog from being hit by computer bags, briefcases, luggage and feet is extremely difficult. Passengers are rushing on/off and not paying attention to the dog's presence. Each bus/train should have at least one specified area that can be adjusted to accommodate a service animal safely. If it is not used, passengers can adjust it for seating/standing.