highways and airports engineering project lecture 2 highway signs and markings
DESCRIPTION
Cairo University Faculty of Engineering Public Works Department. Highways and Airports Engineering Project Lecture 2 Highway Signs and Markings. Dr. Dalia Said [email protected]. February 2013. TRAFFIC CONTROL DEVICES. Traffic signs Traffic signals Pavement markings . - PowerPoint PPT PresentationTRANSCRIPT
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Highways and Airports Engineering Project
Lecture 2Highway Signs and Markings
Cairo UniversityFaculty of EngineeringPublic Works Department
Dr. Dalia Said [email protected] February 2013
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TRAFFIC CONTROL DEVICES
• Traffic signs• Traffic signals• Pavement markings
http://mutcd.fhwa.dot.gov/pdfs/2009r1r2/pdf_index.htm
REFERENCE:
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Function of Signs and Markings
• Signs and markings plays an important role in conveying messages to the road users.
• To be effective signs and markings should be: • Simple and clear• Attract attention of road users• Large enough to see, understand, and react
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TYPES OF SIGNS
1.Regulatory Signs: for traffic laws and regulations•Examples: speeds, right-of-way, turn signs, one-way signs, pedestrian signs.
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TYPES OF SIGNS
2.Warning Signs: Provides warnings from upcoming situations that requires attention
• Examples: intersections, grades, narrow roads, railroad crossings, change in horizontal alignments, entrances...
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EXAMPLE
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EXAMPLE
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TYPES OF SIGNS
3. Guide Signs: Provides information to road users on routes, directions, distances, services, intersecting routes, cities, towns, villages, nearby rivers and streams, parks, forests, and historical sites
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EXAMPLE
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EXAMPLE
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Location of Signs
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Location of Signs
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Location of Signs
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PAVEMENT MARKING
Lines, patterns, symbols, words, colors on surface of pavement for regulating, warning, or guiding traffic.
Must draw attention of road users.
Must be visible at night.
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TYPES OF PAVEMENT MARKING
1. Longitudinal: Parallel to roadway• White: separates of opposing traffic• Yellow: right edge of pavement• Broken lines: permissive• Solid lines: restrictive• Double lines: maximum restriction
2. Transverse: Across travel lanes• Stop line: solid white lines• Crosswalks: many indications (refer to MUTCD)• Parking lanes
3. Word/Symbol on surface of pavement for regulating, warning, or guiding traffic.
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EXAMPLE
http://www.mhd.state.ma.us/downloads/I_95add_lane/75Plans_PMarkings.pdf
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EXAMPLE
http://www.mhd.state.ma.us/downloads/I_95add_lane/75Plans_PMarkings.pdf
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EXAMPLE
http://www.mhd.state.ma.us/downloads/I_95add_lane/75Plans_PMarkings.pdf
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EXAMPLE
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Highway Signs and Markings 247.
2 m
(T
YP.
)
EXAMPLE
5.5
m
(TY
P.)
2.75 m (TYP.)
Other signs?
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Special Parking Spaces : Disabled Spaces
http://www.ada.gov/regs2010/smallbusiness/smallbusprimer2010.htm
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EXAMPLE