Transcription
Chapter 5:Traffic Control Devices
Chapter 5:Traffic Control DevicesTraffic control devicesDefinition: Traffic control devicesprovide information about laws,dangers and the roadway.They include: Traffic signs Signal lights Pavement markings.Purpose: To help ensure road safetyby providing for the orderly andpredictable movement of all traffic.
Chapter 5:Traffic Control DevicesWhat’s important about their color?shape?words?placement?
Chapter 5:Traffic Control DevicesColorsColors communicate meaningThe color of traffic control devices communicates substantial information,regardless of their shape, words or MaintenanceRegulatory Signs
Chapter 5:Traffic Control DevicesRegulatory signsTell drivers what they may or may not do at a given time and/or place.Examples: Stop sign Yield sign Do Not Enter sign
Chapter 5:Traffic Control DevicesRegulatory signsTell drivers what they may or may not do at a given time and/or place.Examples: Stop sign Yield sign Do Not Enter sign
Chapter 5:Traffic Control DevicesGuide signsGuide signs come in several shapes and colors and provide informationabout routes, exits and distances.They also indicate points of interest, recreational and medical facilities, androadside services such as gasoline stations, lodging and restaurantsExamples: Destination and mileage Route markers Roadside services
Chapter 5:Traffic Control DevicesWarning signsWarn drivers of specific road, environmental and traffic conditions a shortdistance ahead.Examples: Two-way traffic Lane added Deer crossing
Chapter 5:Traffic Control DevicesTraffic signalsTraffic signals are used to control traffic byindicating who has the right of way. Red - Stop prior to the pedestriancrosswalk, stop bar or roadway-edgeline. Do not enter the intersection Yellow - Right of way is expiring.Clear the intersection. Red light willfollow immediately. Green - When traffic has clearedand it is safe to do so, you may enterthe intersection.
Chapter 5:Traffic Control DevicesSignal sequenceThe standard signal sequence is green yellow red green.To assist drivers who may be colorblind or whose view may bepartially blocked, signal colors are always in the same order.
Chapter 5:Traffic Control DevicesLight positionsWhen signals are in a vertical position, the red light is on the top,the yellow light is in the middle and the green light is at the bottom.Horizontally mounted lights display the red light on the left, theyellow light in the center and the green light on the right.
Chapter 5:Traffic Control DevicesPedestrian signalsCountdown timers indicate how much time is left for pedestrians to crossthe street.To assist the sight-impaired, many of these emit audible beeps thatcorrespond with the countdown.
Chapter 5:Traffic Control DevicesPavement markingsQuestion: What colors are used in pavement markings?
Chapter 5:Traffic Control DevicesPavement markingsYellow lines Yellow centerlines Single broken yellow lane line Solid yellow lane line Double solid-yellow lane line Reversible lanes Shared left-turn lanes
Chapter 5:Traffic Control DevicesPavement markingsWhite lines Dashed SolidWhite markings Symbols WordsRestricted-lane markingsRestricted lane pavement markings and signs are designated by adiamond-shaped symbol.
Chapter 5:Traffic Control Devices
Traffic Control Devices Traffic control devices Definition: Traffic control devices provide information about laws, dangers and the roadway. They include: Traffic signs Signal lights Pavement markings. Purpose: To help ensure road safety by providing for the orderly and predictable movement of all traffic.
