Since June 2017, ten urban transport agreements have come into force. There are currently 26 Schengen Member States. Most of them are members of the European Union (EU). However, two EU countries, the United Kingdom and Ireland, have chosen to leave Schengen. The Schengen area has a population of nearly 420 million and an area of 4,312,099 square kilometres.  About 1.7 million people go to work daily via a European internal border, and in some regions they account for up to a third of the labour force. Every year, there are a total of 1.3 billion border crossings at the Schengen borders. 57 million crossings are needed for the transport of goods by road worth 2.8 trillion euros per year.    The decrease in trade costs resulting from the use of Schengen varies from 0.42% to 1.59% depending on geography, trading partners and other factors. Countries outside the Schengen area also benefit.  Schengen states have tightened border controls with non-Schengen countries.  The Schengen Agreements also allow police officers in a participating state to pursue suspects across borders and to continue observation operations and improve mutual assistance in criminal matters.  However, it does not allow entry to the United Kingdom or Ireland.
At present, it cannot be used to enter Romania, Bulgaria, Croatia or Cyprus, although this is expected to change in the near future. If you want to travel to these countries, you must purchase the corresponding documentation for each country. Citizens of Schengen countries can cross the internal borders of all Member States without passport control. The Schengen visa allows the holder to visit up to 90 days every 6 months throughout the Schengen area. The Schengen Agreement includes two separate agreements that were ratified in 1985 and 1990 respectively. Between them, they abolished border controls and greatly facilitated transit through Europe. The two individual agreements stipulate that the Schengen Agreement is a treaty that has led to the creation of the European Schengen area, in which internal border controls have been largely abolished. It was signed on 14 June 1985 by five of the ten Member States of the European Economic Community at the time and adopted a decade later with all the countries of the European Union (EU) with the exception of the United Kingdom.