Why Hong Kong Still Uses Double-Decker Trams

Trams in Hong Kong, operated by Hong Kong Tramways, are powered continuously by electricity from overhead lines, which is picked up by a trolley pole and sent straight to electric motors onboard. So instead of burning fuel, these motors use electromagnetism to turn electrical energy directly into motion, producing the torque that drives the wheels. Since there’s no combustion involved, there’s no need for fuel tanks, combustion engines, or exhaust systems, which makes the whole setup much more compact. Electric motors also deliver strong torque at low speeds and run efficiently, which is perfect for the constant stopping and starting in city travel... and it’s part of why the ride feels so smooth! Personally, I love how the tram tracks and overhead power lines are so deeply integrated into the streets of the city... they don’t feel like something added on, but something that belongs there. Over time, they’ve become part of the visual identity of Hong Kong, subtly shaping the skyline and street scenes in a way that feels almost inseparable from the city itself.