years. Most of the population growth is due to migration with people relocating from Mexico City, State of Mexico, Guanajuato, Michoacan and Veracruz. It is estimated that in 2005 alone, 10,465 people migrated to the metropolitan area. Due to factors as diverse as education, economy, security, and quality of life, migration flows from the north and center of the country to the city of Santiago de Querétaro have been noticeable in the recent years. Especially the cities' high security reason also attracts people from other countries like Venezuela, Colombia, Brazil, Spain and many others. Due to the high number of migrants, the municipality is currently considering implementing the Institute for Migrant Assistance to make migration more visible and hence increase structure, legality and safety. Querétaro is among the Top 5 most competitive metropolitan areas in Mexico. In January 2008, the government of the border municipality of Apaseo el Alto in the state of Guanajuato announced the construction of an urbanization for 120,000 inhabitants, which will be part of the metropolitan area of Santiago de Querétaro. Transportation Roads Querétaro is the crossroads of Mexico. Federal Highway 57, which runs from Mexico City to Piedras Negras, crosses Querétaro. Federal Highway 45 leaves Querétaro westbound, towards Guanajuato. The part of Federal Highway 57 that crosses the city is called Blvd. Bernardo Quintana, and this is the main road of the city, stretching from its southernmost part near City Hall, to the new industrial areas northwest of downtown. Federal Highway 45 crosses the city, south of downtown. Cinco de Febrero Ave joins them in a north–south route. The three of them form a sort of ring road around downtown. The railway line that connects Mexico City with western Mexico bisects the city. The Libramiento Sur-Poniente is a new ring road under construction, though parts of it already exist. When completed, it will join Bernardo Quintana on its southeastern part, go around the city in its southwestern and western parts, and reach the northern suburb of Santa Rosa Jauregui. Currently, there is work in progress that aims to extend Bernardo Quintana on its northwestern end to this ring road. Another freeway, named after missionary Junípero Serra who founded the Missions of the Sierra Gorda, creates another ring road. It goes from northeast Querétaro around the old airport, reaches the northern suburb of Juriquilla and goes southwards down to the Libramiento Sur-Poniente. Public transport Querétaro's public