Module 5 Brooke, Kendra 1 st Block Y day

Processing Information A driver needs time, space and visiblity to safely operate a vehicle. A vehicle needs time, space and traction to safely perform driving maneuvers. Good searching technique requires the ability to know how, when, and where to search, and what to search for.

Processing Information Cont. 1. Peripheral- 180 vision, side vision. 2. Focal- Vision from far away. 3. Central- Vision front and center from you. The statement “The eyes don’t tell the brain what they see- the brain tells the eyes what to look for” Means: The brain must be “Programmed” to search for certain things, otherwise, the eyes will just scan over.

Processing Information Cont. Time interval explanation 2 sec This following interval is inadequate. It will only allow a driver to steer to avoid a collision. 4 sec This is the recommended minimum following interval. This allows time to brake or change position sec Needed to identify an alternate path of travel sec Needed to identify objects that would require an alternate path of travel. Needed t search the immediate path of travel. This time interval should provide time to 4-8 Sec stop on dry roadways.

Processing Information Cont. Barriers Unmarked Intersections CampersBicycles CurbsSignsSUVsAnimals SlopesSignals MotorcyclesPedestrians WindRoadway Markings Trucks Skateboarders Highway ConditionsTraffic ControlsMotor VehiclesNon- Motorized Users

Intersections Before entering an intersection: –Check left and right for Traffic and Pedestrians; –Check for Traffic Turning Left; and –Count to 3 to allow other vehicles to clear the intersection. Crossing a two-lane roadway form a stop takes about 6 seconds. If a vehicle is approching from the right at 30 mph. (45 feet per second), you will need a gap of at least 270 feet to safely cross the intersection. If a vehicle is approching from the right at 50 mph (75 feet per second), you will need a gap of at least 450 feet to safely cross the intersection. When waiting to make a left turn, the front wheels should be facing straight ahead.

Intersections cont. When Executing a left turn from a driveway, how can a shared left turn help you make the turn safely? –You can turn into the “Suicide Lane” and wait for the traffic going in the direction you want to clear.

Curves and Hills How is your line of sight restricted? The Hill What should you be searching for? Oncoming cars Are there any escape routes? Right side of the road. What is your best lane position as you approach the crest of the hill? Right side of the road.

Curves And Hills When should you slow down for a curve? –Before the curve When should you begin accelerating? –At the apex Why is it essential to check traffic behind before cresting a hill? –In case you have to suddenly step on the brake.

Passing How many feet will car A travel before starting to pass? –2 seconds x 60 feet per second = 120 feet. How many feet must car A travel to overtake B and establish a safe space before returning to the right lane? Length of car B + distance allowed before returning to lane = 75 feet.

Passing Cont. Car A must travel a total of 195 ft more than B in order to safely complete this pass. (a+b) If vehicle A is traveling 60 feet per second ( ) and vehicle B is traveling 45 feet per second ( ), how many more feet per second is A traveling than B? –60 – 45 = 15

Passing Cont. Based on answer 2, how many seconds will it take car A to pass car B safely? –Additional distance traveled by A to pass B (1.c) 195 divided by difference in distance traveled per second by each vehicle (2.a) 15 (1.c/2.a)= 13 seconds. Since vehicle A is traveling 60 fps, how far will it travel while passing vehicle B? –60 fps x 3.a = 780

Passing Cont. If a vehicle is approaching from the opposite direction at 40 mph, how much total space is needed to safely complete this pass? –1560 feet- This would be approximately 5 football fields!

Passing Cont. Vehicle B is a 100 foot long truck. Vehicle A must start 4 seconds behind B to ensue visibilty around the truck. How far will vehicle A travel to safely pass the truck and return to the right lane?

Passing Cont. 2 seconds x 60 fps = 120 feet To overtake the truck and establish a safe space= 160 feet Car A must travel 280 feet more than Truck B to safely pass. Car A is traveling 15 feet per second faster than truck B. (60 fps- 45 fps) It will take 19 seconds to safely complete the pass. (C divided by d)

Passing Cont. Vehicle B must travel 1140 feet to safely pass the truck and return to the right lane. (60 fps x answer e) To allow for a vehicle approaching from the opposite direction at 40 mph, what is the total space neededto safely pass this truck? –2280 feet- This is approximately 7 ½ football fields.

Passing Cont. 5 places where passing is not permitted. –Hills –Curves –Railroad Crossings –Intersections –Solid Yellow Lines

Passing Cont. Describe how using headlights during the daytime increases safely during passing maneuvers? –Makes you visible to other drivers How can you determine it is safe to return to the right lane after passing another vehicle? –When you see the entire front end of the car in your rearview mirror.

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