No. But comparing CityBuzz with some other operators such as
HippoTours, SBS Transit should use open-top
DD buses. Passangers would definitely love to sit this kind of
buses. If you observe the HippoTours buses, you can see most
passengers are sitting on the top rather than the air – conditioned
lower deck bus. Also SBS Transit could
publitise the CityBuss Services to tourist. For example, on the
tourist travel documentation / brochure / guides, include the
CityBuzz info., that may increase the ridership.