The Road to Indy is made up of three open-wheel racing series that provide a road map for a young driver to move from local and regional karting into the IndyCar Series.
The Series is set up as a ladder system, very similar to the way that the Major League Baseball Farm System is set up with a Major Leagues, Triple A, Double A and Single A.
The top level of the Road to Indy Series is called Indy Lights. Indy Lights is the stepping stone to the IndyCar Series. The Indy Light car is the closest the driver will get to driving an actual IndyCar, power-wise, suspension wise and also feature a push to pass system.
Because all three series run on the same tracks as the NTT IndyCar Series, the drivers gain valuable experience for IndyCar that they would not be able to obtain on other venues or series. Also, the close proximity to the Major League IndyCar Teams on a race weekend allows the stars of the Road to Indy series to shine in front of their future employers.