In an attempt to decrease vehicle dependency and road congestion, the city built a metro system dubbed "Tren Urbano" ("Urban Train"). The line connects to 16 stations. The project, which opened in late 2004, cost $2.25 billion and was more than $1 billion over budget and four years late. The Tren Urbano has received less ridership than was originally projected and has not significantly reduced the city's automobile traffic, despite a reported 7.5% ridership increase in 2006 over 2005. There is a planned project to build an "interurban light rail system" connecting the cities of San Juan and Caguas.