Guidelines for Determining Traffic Signal Change and Clearance Intervals ITE has published guidance on yellow change and red clearance intervals for signalized intersections. The goal of this guidance is to create a consensus methodology for calculating and evaluating traffic signal change intervals that can be consistently implemented by transportation agencies. The recommendations presented should yield reasonable times for the yellow change and red clearance intervals for traffic signals, assisting transportation professionals in enhancing intersection safety, maintaining reasonable traffic flow, and providing for movement of vehicles, bicycles, and pedestrians. PURCHASE INFORMATION Electronic Format: Member $75 Non-Member $150 Print Format - price of electronic format plus $20 shipping and handling For more information: http://bit.ly/ClearanceIntervals. Trip Generation Manual, 10th Edition Supplement The supplement adds walk, transit, and bicycle trip generation data for 53 land uses and truck trip generation data for 50 land uses. For pricing and purchasing information for the supplement, visit http://bit.ly/TripGenSupplementhttp://www.bit.ly/ClearanceIntervals http://www.bit.ly/TripGenSupplement