IMSA Traffic Signal Technician Level II | Questions and Verified Answers| Grade A| 100% Correct (2024/ 2025)

IMSA Traffic Signal Technician Level II | Questions and Verified Answers| Grade A| 100% Correct (2024/ 2025) Yello change interval does what? Answer: It alerts drivers that the green display has ended and that the right-of-way will be changing. QUESTION The "yellow change interval" must give a sufficient time to allow......... what? Answer: Allowed drivers approaching the intersection either to come to a safe stop before reaching the stop line or to proceed into the intersection prior to the display of the rare indication. QUESTION How is a " yellow change interval calculated? Answer: Typically based on the speed of approaching vehicles not the POSTED SPEED LIMIT! QUESTION "Red Clearance Interval" provides what? Answer: A brief period of time between the end of the yellow display on one approach and the start of the green display on a conflicting approach "Basically giving you time to drive to the other side of intersection. QUESTION Red clearance interval provides a brief period of time. How much time does it give you? Answer: 1 to 3seconds QUESTION How is a red clearance interval calculated ? Answer: The distance from the stop line to a point that is clear of conflicting vehicles and pedestrians QUESTION A "pedestrian head "at a intersection gives the pedestrian what information? Answer: The time they need to safely cross the street QUESTION Pedestrian timings include both ________ & _______________ ? Answer: Walk interval and Pedestrian change interval. QUESTION What is a "walk interval"? Answer: The amount of time that is given to the pedestrian that is using the crosswalk to get to the other side of the crosswalk safely. ( it's not related to the time needed to cross the stree) QUESTION The MUTCD recommends _____ for the " walk interval " but allows the use of walk intervals as short of ______ seconds? Answer: 7 seconds and 4 seconds QUESTION During the " walk interval" , the " pedestrian signal head" displays what symbol? Answer: Steady walking person symbol during the walking interval. QUESTION " pedestrian clearance time" should be sufficient to allow a pedestrian crossing in the crosswalk at the end of the WALKING PERSON symbol to travel at walking sp