Transcript Chapter 7
Chapter 7 Negotiating Intersections Attention Getters Antena1wheel.mpeg bumperhit.wmv Australia-Difference-of-5k.mpeg 7.1 Searching Intersections Intersections The chances of a collision are greater at intersections than any other point on a roadway Intersections are dangerous because many drivers paths cross there About 40% of all collisions and 25% of all fatal collisions take place at intersections 7.1 Searching Intersections Clues to identifying intersections Street signs and street lights Parked cars on cross streets Rows of fences and mailboxes Power lines 7.2 Controlled Intersections Definition – An intersection that has signs or signals assigning the right of way What to do – Use the IPDE process when approaching an intersection. Proceed only when you are certain your intended path of travel is clear 7.2 Controlled Intersections Stale Green Light Definition – A light that has been green since you notice it. What to do – Predict that it will change to yellow soon Fresh Green Light Definition – Light that has just changed from red to green What to do – check to make sure intersection is clear before proceeding 7.2 Controlled Intersections Unprotected Left Turn Definition – No special turn light for the left turn What to do –You must yield to oncoming traffic Protected Left Turn Definition – A special left-turn, green arrow, or delayed green light lets you turn left while oncoming traffic is stopped What to do – Proceed cautiously while checking for traffic Traffic Light Slides http://www.youtube.com/watch?v=TW0Eq2Q-9Ac 7.3 Uncontrolled Intersections Definition – an intersection that does not have signs or lights to regulate traffic What to do – slow down when approaching an uncontrolled intersection then look left first then right. You cross the path of vehicles from the left first. 7.4 Determining the Right of Way Definition – privilege of having immediate use of a certain part of the roadway Situations when you must yield Yield at stop signs (to whom) Yield at fresh green light (to whom) Yield from an alley, driveway or private road Yield at all yield signs Yield to emergency vehicles Yield when turning left at any intersection (to whom) Yield at four-way stops (to whom) Yield at uncontrolled intersections Funeral Processions http://www.youtube.com/watch?v=3hHaWcEJQT4 7.4 Determining Right of Way and Judging Gaps Judging the size of a gap Gap – the distance between vehicles Crossing two lanes of traffic takes 4 – 5 seconds Turning right and accelerating to 30mph takes 6 seconds Turning left and accelerating to 30mph takes 7 seconds Crossing and Joining Traffic A left turn is more dangerous than a right turn. Why? Attention Getters ICEY ROADS.mp4 Do worksheet on Intersections Go over Chapter 7 Intersection slides Right of Way pretest