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Published byVivian Houston Modified over 9 years ago
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Signs, Signals, and Lane Markings
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Three types of traffic control devices. Signs Signals Lane Markings
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Signs
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Signs identified in two ways: Color Shape
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Signs (cont.) Signs come in ____ colors.eight
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Sign COLORS Red Green Orange Yellow -stop, yield, or prohibitory (regulatory) - guide or direction - warning - construction
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Sign COLORS (cont.) Blue Brown Black White - motorist services - parks and recreation - regulatory
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Sign SHAPES Stop signWarning YieldRegulatory School zone Guide
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Sign SHAPES (cont.) Railroad Ahead At Railroad Crossing Do not enter No passing
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Route Signs PA State route U.S. Highway U.S. Interstate / Turnpike
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Route Signs (cont.) Even numbers =East / West routes Odd numbers =North / South routes
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Bypass vs. Spur Three digit Interstate numbers indicate Bypass or Spur.
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Bypass vs. Spur (cont.) Bypass I-495 – The 4 (even) indicates connects to interstate twice. I-495 – The 95 indicates which interstate. I-95I-495
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Bypass vs. Spur (cont.1) Spur I-395 – The 3 (odd) indicates connects to interstate once. I-395 – The 95 indicates which interstate. I-95I-395 U.S. 55
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Guide Signs Guide signs give a variety of information: Distance Exits Directions
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Guide Signs (cont.) Guide signs give a variety of information: Street names Left exit / Must exit
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Signals
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Signal Boxes Multiple- Single- Can change color Can’t change color
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Cluster Light—gives multiple directions
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Signals Signals identified in three ways: Color Shape Solid / Flashing
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Signal COLORS Red- Green- Yellow- Stop Prepare to stop (action) Proceed with caution (thinking)
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Signal SHAPES Circle- Applies to ALL directions Arrow- Applies ONLY to direction of arrow
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FLASHING SIGNALS have different meanings Red- Green- Yellow- Stop, proceed with caution Proceed with caution
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FLASHING Signals have different meanings (cont) Yellow flashing arrows have dual meanings. Multiple Box – Yield right of way Single Box – Proceed with caution
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Right Turn On Red You may make a right turn on red after a full and complete stop, there are no signs or signals prohibiting, and the maneuver may be done in safety.
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Right Turn On Red (cont.) What prohibits a Right Turn On Red? Red arrow (signal) No turn on red sign (sign)
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Right Turn on Red vs. Yield Is there a channel (island) or not? Yes = Yield No = Right Turn on Red
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Right Turn on Red vs. Yield (cont. 2) What is a channel (island)? Triangle that separate right turn from traffic signal. White Paint Concrete White Paint / Concrete
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Right Turn on Red vs. Yield (cont. 3) Which is a Right Turn on Red? 12
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Making Left Turns Two types of left turns: Protected Unprotected
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Making Unprotected Left Turns Unprotected Must yield to oncoming traffic When is it an unprotected left turn? No signal Green circle
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Making Protected Left Turns Protected You have Right of Way (cautiously) When is it a protected left turn? Green arrow
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Making Left Turns On Red Making a left turn on red You may make a left turn on red from a one-way street to a one-way street, under the same conditions as right on red, and from the furthest left hand lane. NO TWO WAY STREETS!!!!
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Lane Markings
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Lane markings identified in two ways: Color Shape
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Lane Marking COLORS Yellow-two way traffic (left side of car) White-one way traffic
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Lane Marking SHAPES Solid Dashed Dotted
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Lane Marking SHAPES (cont.) Solid Yellow- Do not cross White-Single - Recommended do not cross Double - Do not cross
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Lane Marking SHAPES (cont. 1) Dashed Can cross Yellow- May pass if on your side of center line. White – Creates lanes.
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Lane Marking SHAPES (cont. 2) Dotted Can cross Found in: -Merge areas -Intersections as guide lines for turning traffic
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