Unit 2: Signs, Signals, and Roadway Markings NV Driver Education Curriculum Unit 2: Signs, Signals, and Roadway Markings Presentation 3 of 3
Roadway Markings Warn, regulate, and inform lines, words, or symbols on the road Marking are white and yellow May be reflective Type of lines have meaning Solid and Broken Carpool image from: http://www.about-losangelesca.com/ Center turn image from: http://www.southeastroads.com/misc_tn.html Bike image from: http://bike.emory.edu/2008/12/01/new-bike-lane-on-briarcliff/ Arrows image from: http://www.fhwa.dot.gov/hep/tribaltrans/whitemtn.htm Retrieved: 12/28/09
Two Colors of Lines White lines separate traffic lanes traveling in the same direction Yellow lines separate traffic lanes traveling in opposite directions General rule: Broken lines can be crossed and solid lines cannot (exception when making a turn) Image from: http://rhbatterman.com/projects.asp Retrieved: 12/30/09
Yellow lines separate traffic lanes traveling in opposite directions Single, broken yellow line indicates may pass when safe Images from: http://www.teendrivingclass.com/handbook-4-8.htm Retrieved: 12/28/09 Single, solid yellow line indicates that passing is not allowed
Single Lane Roads Two-way traffic Yellow center line may be single, double, solid, or broken (dashed) You may pass when there is a broken line on your side of the road You may not pass when there is a solid line on your side of the road
White Lines White lines separate traffic lanes traveling in the same direction Broken (dashed) white lines may be crossed when changing lanes Solid white line are used in several ways, including marking edge of road. May not cross, with few exceptions: Immediate right turns (no more than 200ft prior) Enter or exit HOV lane
Solid White Lines Video See LVPD Video Crossing Solid White Line http://www.youtube.com/watch?v=Jq3zn2TtBiA (0:31) Click on web address to access video clips *Suggest full screen viewing NOTE: some on YouTube, check access Always preview video before showing to students Check content Check availability
Center Lanes Shared left-turn lane May not be used for passing May not travel more than 200ft before turning left May not travel more than 50ft after turning left before merging with traffic
White Arrows White arrows indicate a turn lane If marked “ONLY” you must obey direction When marked with a curve and straight arrow, you may turn or continue forward
Reversible Lanes Reversible lanes are used to improve traffic flow during rush hours Marked by two broken yellow lines Changes direction of travel within lane Overhead signals indicate availability RED “X” – Lane is closed in this direction. Never drive in this lane. YELLOW “X” – Lane signal is going to change. Exit the lane safely before the red “X” appears GREEN ARROW – Lane may be used.
High-Occupancy Vehicle (HOV) Lane High-Occupancy Vehicle (HOV) lanes are restricted for vehicles with two or more people Designed by a diamond-shape symbol May have restricted hours Sign images from: http://www.trafficsign.us/index.html Street image from: http://forum.skyscraperpage.com/showthread.php?t=169173 Retrieved: 12/30/09
See Nevada RTC&DOT video HOV Lanes Video See Nevada RTC&DOT video HOV Lanes in Las Vegas http://www.youtube.com/watch?v=fFkRMfMIGk4 (2:43) Click on web address to access video clips *Suggest full screen viewing NOTE: some on YouTube, check access Always preview video before showing to students Check content Check availability
Highway Ramps Highway ramps use solid white lines to indicate it is dangerous and illegal to cross Called the gore area: area between the edge of the highway and the edge of the ramp meet May include angled or diagonal lines Highway images from: http://www.aaroads.com/northeast/ny-878.html Signs image from: http://ustrafficsign.com/index.php?page=0&act=viewCat&catId=6 Retrieved: 12/31/09
Stop Lines and Crosswalks Stop lines are wide white lines where you must stop before entering an intersection or railroad crossing Crosswalks are areas for pedestrians (in front of stop lines) and may include two parallel or diagonal lines. Stop sign image from: http://www.gearlog.com/2008/07/fords_smart_intersection_warns.php Cross walk image from: http://www.urbanreviewstl.com/?p=3185 Railroad image from: http://www.volpe.dot.gov/infosrc/highlts/09/apr/gradecross.html Retrieved: 12/30/09
Special Lanes Bike lanes Bus lanes Designated by striping and signing If line is broken may cross if clear Bus lanes Used to speed up public transport Some cities may allow taxis May have time designations Bike image from: http://www.goto2040.org/blogs/blogarchive.aspx Bus image from: http://boonkee.wordpress.com/ Signs image from: http://ustrafficsign.com/index.php?page=0&act=viewCat&catId=6 Retrieved: 12/31/09
Raised Pavement Markers Reflective Markers (may or may not be raised) like white and yellow lines - mark lanes of travel White markers used between lanes or edge of road Red markers warn drivers going the wrong direction Yellow markers found on left edge of expressways Blue markers identify the location of a fire hydrant Marker images from: http://www.stop-painting.com/ao-30-730.html?gclid=CImptMuUgZ8CFSBJagodNTf-Tg Road image from: http://www.allproducts.com/traffic/siglite/Product-20051715413.html Hydrant image from: http://www.asiseeitlive.net/ Retrieved: 12/31/09
Other Pavement Markings Rumble strips Grooved or corrugated roadway, causes vibration and loud noise when drive over Speed bumps and dips Used to slow traffic speed Should drive slowly over bumps and through dips Car rumble image from: http://local4traffic.wordpress.com/2009/03/24/rumble-strips-saving-lives/ Center line rumble image from: http://www.tfhrc.gov/pubrds/08july/02.htm Bump image from: http://landauinjurylaw.com/bicycle-accidents/speed-bumps-are-traffic-calming-tools-and-promote-safe-driving-in-neighborhoods-with-children-and-shopping-centers/ Signs image from: http://ustrafficsign.com/index.php?page=3&act=viewCat&catId=6 Retrieved: 12/31/09
Other Roadway Markings Lines, words, and symbols found on the pavement Railroad image from: http://www.in.gov/indot/2951.htm School image from: http://www.flickr.com/groups/urbannature/discuss/72157594572065474/page2/ Handicapped image from: http://www.citynmb.com/index.asp?Type=B_BASIC&SEC=%7B58514F97-7484-4D46-8A15-D0EEB25E58F2%7D Stop image from: http://www.tfhrc.gov/safety/evaluations/ppt/presentation6.htm Signs image from: http://ustrafficsign.com/index.php?page=0&act=viewCat&catId=6 Retrieved: 12/31/09
Did You Know Both Michigan (1911) and California (1917) claim to be the first to develop center road lines. White center lines were used in the U.S. until 1971, when yellow became the mandated standard. White lines image from: http://www2.warwick.ac.uk/fac/cross_fac/capital/teaching_and_learning/learning_events/conferences/cormac/ Yellow lines image from: http://natchez-trace.thefuntimesguide.com/2006/11/roadways_and_terrain.php Retrieved: 12/28/09 White center lines are used in Canada, Great Britain, and many other countries.