vehicles. Tickets can also be bought through SMS by sending a message to 7458, with the message "C", you will be charged 0.65 EUR + VAT. You can also purchase a 24-hour pass for 8 RON at any kiosk or by sending the message "AB" to the same number, costing you 1.5 EUR + VAT. This method of SMS-based payment is also available through the app, InfoTB. The app can also plan routes using all types of transportation in the city, and show the GPS location of vehicles. Approximately 85% of vehicles are equipped with a GPS positioning system. A separate app, 24Pay, can be used to pay for fares using a credit card. An online account can also be created on the website, that allows clients to add credit to their STB cards. BCR (Romanian Commercial Bank) ATMs also allow clients to recharge their physical cards with money. Metrorex and STB have integrated tickets and passes, information which is available on their websites, but also on the Bucharest Metro page. An integrated fare costs 5 RON and can be used simultaneously on both surface lines and the metro, with a time limit of 120 minutes. The Bucharest Metro uses a per-entry constant fare system, every entry costing 3 RON, regardless of stations travelled, time spent or zones used, changing lines doesn't require additional pay and is free, the only exception is Gara De Nord, where the 2 corresponding stations are separate and thus you are required to exit the system and pay again at the other station to transfer lines, tho free transfers from the M1 to the M4 can be done at the neighbouring Basarb station. Passengers can purchase paper tickets loaded with 1, 2 or 10 fares or simply tap their contactless bank cards at the turnstiles, which will charge them 3 RON. Rechargeable contactless metro cards can also be issued and loaded with passes available for either a day, a week, a month or a year. The most commonly used pass is the 1 month pass priced at 80 RON. Personal cars At the end of 2008, in Bucharest there were 1.24 million vehicles, of which 985.000 were personal cars. In 2007 there were 150.000 fewer vehicles, which means the number of vehicles increased by 13.76% in one year. With so many cars and a very high population density (50% higher than Tokyo and 4 times