From Boston:
Take the Massachusetts Avenue Bridge into Cambridge. Go through four traffic lights. The fifth light is in the middle of Central Square!

Or, take the Longfellow Bridge into Cambridge. Go through two traffic lights. At the fork, bear left onto Broadway. At the third light, take a left onto Prospect Street. Go through two lights - the third is the middle of Central Square!

From the West:
Take the Mass Pike to the Brighton/Cambridge exit. Go across the Charles River into Cambridge and take River Street all the way until it ends at Massachusetts Avenue in Central Square!

From the North:
Take Route 93 to the McGrath Highway exit. At the end of the ramp, take a left. Go through one traffic light. At the next light (Rte. 28) turn right. Go through two lights and the road will bear left as it goes over a trestle bridge. As you bear left, stay to the right and get off at the ramp right next to the gas station, where the sign says "Washington Street." At the traffic light at the end of the ramp, turn right. The road will soon bear to the left and reach a traffic light (this is Union Square in Somerville). Take a right at the light and go to the next light. Turn left at this light and go up a small hill. Bear right at the next traffic light - this is Prospect Street. Go up Prospect through five lights into the center of Central Square!