Free transport

Yes, there is free transport from Central to mid-hill on the HK island — the Central/Mid-levels escalators. It is 800-meter long and makes a 135-meter vertical climb/descent between Central (near the sea) to the Mid-Levels area, saving a lot of traffic along the narrow zigzag roads on the hill. The escalators go one-way uphill or downhill depending on the time of the day. See more photos on Wiki.