A Double Decker bus can be an interesting symbol because of the fact that they are so rarely seen out of specific areas of the world. For example they are usually thought of as just a normal mode of transportation in places like England and Egypt. But outside of Los Angeles and Hollywood, in America a double decker bus is rarely seen. Thus their prevalence and importance as a dream symbol is in accordance with how many there are in your vicinity.
If you have a dream in which you are being transported somewhere by a double Decker bus it means that right now you are feeling an immense sense of community and of connection to the world outside yourself. You feel like life is a ride and the rest of the people in the world are all there to live it with you. You also feel really connected to the immediate community around you. This can be a fantastic first step to making new friends; don’t lose this zeal for life anymore.
If you dream that you are riding on the second floor of a double decker bus it means that you feel like you have leveled up in life. You feel as if you are on a level above those around you and you have earned the feeling of accomplishment that comes with this. Just be sure that you don’t mix this with a feeling of superiority. Sure you should feel accomplished for accomplishing something great, but to think you are better than someone else would be a fallacy and will get you in a lot of trouble.