Does anyone know how I can make an interval training program me on my bike?

I love road biking (not a stationary bike), but I would love to get a better performance of the same by using interval training. Anybody know how to do that with a road bike? I would love some ideas on how to change my bike to interval training. I currently walk about 5 miles, there are three major hills, but the rest is flat or downhill.

sounds like u know what to do now. warm-up exercises on the floor, and then make a hill, then back to the floors, so just make sure have at least five minutes rest between

Green Bike Program, Pitzer College