Highways and Airports Engineering Project Lecture 2 Highway Signs and Markings Cairo University Faculty of Engineering Public Works Department Dr. Dalia Said February 2013
Highway Signs and Markings 2 TRAFFIC CONTROL DEVICES Traffic signs Traffic signals Pavement markings REFERENCE:
Highway Signs and Markings 3 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
Highway Signs and Markings 4 TYPES OF SIGNS 1.Regulatory Signs: for traffic laws and regulations Examples: speeds, right-of-way, turn signs, one-way signs, pedestrian signs.
Highway Signs and Markings 5 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...
Highway Signs and Markings 6 EXAMPLE
Highway Signs and Markings 7 EXAMPLE
Highway Signs and Markings 8 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
Highway Signs and Markings 9 EXAMPLE
Highway Signs and Markings 10 EXAMPLE
Highway Signs and Markings 11 Location of Signs
Highway Signs and Markings 12 Location of Signs
Highway Signs and Markings 13 Location of Signs
Highway Signs and Markings 14 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.
Highway Signs and Markings 15 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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Highway Signs and Markings 20 EXAMPLE
Highway Signs and Markings 21 EXAMPLE
Highway Signs and Markings 22 EXAMPLE
Highway Signs and Markings 23 EXAMPLE
Highway Signs and Markings m (TYP.) EXAMPLE 5.5 m (TYP.) 2.75 m (TYP.) Other signs?
Highway Signs and Markings 25 Special Parking Spaces : Disabled Spaces
Highway Signs and Markings 26 EXAMPLE