Hong Kong has a highly developed and sophisticated transport network, encompassing both public and private transport. Based on Hong Kong Government's Travel Characteristics Survey, over 90% of the daily journeys are on public transport, the highest rate in the world. However, in 2014 the Transport Advisory Committee, which advises the Government on transportation issues, issued a report on the much worsened congestion problem in Hong Kong and pointed at the excessive growth of private cars during the past 10–15 years.
The Octopus card, a smart electronic money payment system, was introduced in September 1997 to provide an alternative to the traditional banknotes and coins. Available for purchase in every station of the Mass Transit Railway system, the Octopus card is a non-touch payment system which allows payment not only for public transport (such as trains, buses, trams, ferries and minibuses), but also at parking meters, convenience stores, supermarkets, fast-food restaurants and most vending machines.
Hong Kong Island is dominated by steep, hilly terrain, which required the development of unusual methods of transport up and down the slopes. In Central and Western district, there is an extensive system of zero-fare escalators and moving pavements. The Mid-levels Escalator is the longest outdoor covered escalator system in the world, operating downhill until 10 am for commuters going to work, and then operating uphill until midnight.
The Mid-levels Escalator consists of 20 escalators and 3 moving pavements. It is 800 metres long, and climbs 135 vertical metres. Total travel time is approximately 25 minutes, but most people walk while the escalator moves to shorten the travel time. Due to its vertical climb, the same distance is equivalent to several miles of zigzagging roads if travelled by car. Daily traffic exceeds 35,000 people. It has been operating since 1993 and cost HK$240 million (US$30 million) to build.