干德道
It is one of the steepest roads in Hong Kong with public transport. It has a gradient of 1:5 in the Robinson Road to Conduit Road section, with Route 2*, 3, 3A and 45A (minibus) passing this road, which is often congested. The other 1:5 roads used by public transport in Hong Kong are Aberdeen Reservoir Road, Breezy Path and Castle Road.