When the data have been collected, fill in the master chart with the appropriate information. Invite a traffic engineer to your class to discuss traffic in your community. Some traffic signals are timed to help clear congestion and keep the arteries moving at a regular pace. Ask someone you know who has a driver's license to drive you down a street in your community that might have timed signals. Some streets have signals timed so that cars don't always get a green light.
Statistics abound when looking into traffic issues.
Work with your librarian to find more statistics. Design several graphs to present your information. Newton's Apple is a production of KTCA Twin Cities Public Television. Made possible by a grant from 3M. Educational materials developed with the National Science Teachers Association.