The Tren Urbano - or urban train - is Puerto Rico's new mass transit system, currently covering a 10.7 mile course through the capital city of San Juan. Rep. Marilyn Lee was in Puerto Rico for legislative business and received an invitation to learn more about the project. As Honolulu prepares to develop its own mass transit system, the comparisons between San Juan and Honolulu contained many similarities. Her observations are published today in the Honolulu Star Bulletin. Tren Urbano cost S2.25 billion and an extension is planned. Ridership is lower than projected, but increased 7.5% from 2005 to 2006. General fare is $1.50.