Traffic Markings and Signage Quiz
48 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What color are all transverse markings?

  • Red
  • Yellow
  • White (correct)
  • Blue

Crosswalk markings should only be placed where there is a low conflict between vehicles and pedestrians.

False (B)

What marking is often associated with the word 'SCHOOL'?

School crossing zones

Object markers are used to denote __________ either in or adjacent to the traveled way.

<p>obstructions</p> Signup and view all the answers

Match the following types of object markers with their purposes:

<p>Type 1 = Obstructions within the roadway Type 2 = Obstructions adjacent to the roadway Type 3 = Can direct traffic using downward stripes Type 4 = Indicates the end of a roadway</p> Signup and view all the answers

Which element is NOT included in parking space markings?

<p>Circular elements (C)</p> Signup and view all the answers

What are directional arrows used for?

<p>Guiding drivers to the correct lane at busy intersections</p> Signup and view all the answers

Parking space markings are categorized under longitudinal markings only.

<p>False (B)</p> Signup and view all the answers

Which Type of object marker consists of nine yellow retro reflectors?

<p>Type-1 (D)</p> Signup and view all the answers

Warning signs are primarily used to inform road users of selected traffic laws or regulations.

<p>False (B)</p> Signup and view all the answers

What is the minimum size of a Type-2 object marker panel?

<p>6 X 12 inches</p> Signup and view all the answers

Regulatory signs usually have a background color of ______.

<p>white</p> Signup and view all the answers

Match the following Traffic Sign categories with their descriptions:

<p>Regulatory Signs = Used to inform road users of selected traffic laws or regulations Warning Signs = Alerts users of potential hazards on the road Guide Signs = Provides directions, distances, and points of interest</p> Signup and view all the answers

What angle do the black and yellow stripes on a Type-3 object marker slope?

<p>45° (B)</p> Signup and view all the answers

Type-4 object markers are used primarily in construction zones.

<p>False (B)</p> Signup and view all the answers

What shape are most regulatory signs typically?

<p>Rectangular</p> Signup and view all the answers

What is the primary purpose of warning signs on the road?

<p>To inform drivers about potential hazards and changes (B)</p> Signup and view all the answers

A blue background on a sign indicates directional information.

<p>False (B)</p> Signup and view all the answers

What are the three main colors of traffic lights?

<p>Red, yellow, and green</p> Signup and view all the answers

The maximum length of time for one complete rotation of a signal is known as the signal cycle's ______.

<p>cycle length</p> Signup and view all the answers

Match the type of sign with its corresponding color:

<p>Directional signs = Green Service information signs = Blue Cultural/historical signs = Brown Warning signs = Yellow</p> Signup and view all the answers

What does overuse of guide signs generally lead to?

<p>Confusion (B)</p> Signup and view all the answers

Traffic phases in a cycle consist only of the green signal duration.

<p>False (B)</p> Signup and view all the answers

What is the primary objective of signal timing at intersections?

<p>To reduce average delay and probability of accidents</p> Signup and view all the answers

What is the primary purpose of the change interval (yellow time) in a signal cycle?

<p>To warn drivers of the end of the green phase (C)</p> Signup and view all the answers

The clearance interval (all red) allows vehicles to enter the intersection safely after the green light turns red.

<p>False (B)</p> Signup and view all the answers

What is the symbol given to the green interval for movement(s) i?

<p>Gi</p> Signup and view all the answers

The ________ interval is timed to allow vehicles that enter on yellow to safely cross before conflicting flows are released.

<p>clearance</p> Signup and view all the answers

Match the intervals with their descriptions:

<p>Change Interval = Yellow indication for transitions Clearance Interval = All movements have a red signal Green Interval = Designated time for movements to proceed Red Interval = Period when movements are halted</p> Signup and view all the answers

What does the symbol 'ari' represent in signal phasing?

<p>Clearance interval for all movements (C)</p> Signup and view all the answers

The offset represents the time between the beginning of a green phase at one intersection and the beginning of the green phase at the next.

<p>True (A)</p> Signup and view all the answers

What does the red interval in a signal cycle signify?

<p>It indicates that movements are halted.</p> Signup and view all the answers

Which color indicates that a driver must stop or should not enter?

<p>Red (D)</p> Signup and view all the answers

Traffic control devices include only signs and signals.

<p>False (B)</p> Signup and view all the answers

What is the purpose of traffic control devices?

<p>To ensure road safety and provide orderly traffic movement.</p> Signup and view all the answers

The color ___ is used for construction and maintenance warnings.

<p>orange</p> Signup and view all the answers

Match the following colors with their meanings:

<p>Green = Guide, directional information Blue = Motorist services guidance Yellow = General warning Brown = Public recreation areas and scenic guidance</p> Signup and view all the answers

Which of the following is NOT a visual characteristic used in traffic control devices?

<p>Size (C)</p> Signup and view all the answers

Shape is the most easily visible characteristic of a traffic control device.

<p>False (B)</p> Signup and view all the answers

What type of traffic control device provides guidance for parking spaces for disabled drivers?

<p>Blue signs</p> Signup and view all the answers

What consists of a green interval, change interval, and clearance interval in traffic control?

<p>Signal phase (B)</p> Signup and view all the answers

The Pacific Hour Factor (PHF) is calculated as Volume during peak hour divided by 4 times the volume during the peak 15 minutes.

<p>True (A)</p> Signup and view all the answers

What is the ideal saturation flow rate per lane during a green phase?

<p>1900 vehicles per hour</p> Signup and view all the answers

A __________ phase is designed exclusively for pedestrian traffic at intersections.

<p>pedestrian</p> Signup and view all the answers

Match the following types of traffic phases with their descriptions:

<p>Leading green phase = Green signal granted before conflicting movements Lagging green phase = Green signal granted after conflicting movements Exclusive left turn phase = Phase designed only for left turns Split-phase = Part of a phase for specific traffic control</p> Signup and view all the answers

What is the purpose of the critical lane group?

<p>Lane group that requires the longest green time (D)</p> Signup and view all the answers

The sum of critical lane volumes does not affect the required length of a particular traffic phase.

<p>False (B)</p> Signup and view all the answers

Define the Peak Hourly Factor (PHF).

<p>A measure of demand variability during peak hours</p> Signup and view all the answers

Flashcards

Traffic control

The act of regulating the movement of people, goods, and vehicles to ensure safety, efficiency, and speed.

Road furniture

Traffic control devices such as markings, signs, and signals that provide information and instructions to drivers.

Traffic markings

Lines painted on the road surface to guide and regulate traffic flow.

Traffic signs

Signs placed along roads to provide information and instructions to drivers.

Signup and view all the flashcards

Traffic signals

Lights that use color sequences to control traffic flow at intersections.

Signup and view all the flashcards

Color in Traffic Control

The most obvious characteristic of a traffic control device, used to communicate specific meanings.

Signup and view all the flashcards

Shape in Traffic Control

The shape of a traffic control device, aiding in its recognition and understanding after color.

Signup and view all the flashcards

Patterns in Traffic Markings

Used in traffic markings to define lane boundaries or provide other instructions.

Signup and view all the flashcards

Crosswalk Markings

White lines painted across the road to guide drivers, typically found where there is conflict between vehicles and pedestrians, or at locations with heavy pedestrian traffic.

Signup and view all the flashcards

Type 4 Object Markers

Markings that indicate the end of a roadway or signal a potential hazard, usually placed at the end of a road to warn drivers.

Signup and view all the flashcards

Type 1 or Type 3 Object Markers

Markings used to denote physical obstructions within the roadway, typically used for hazards like utility poles or construction barriers.

Signup and view all the flashcards

Type 2 or Type 3 Object Markers

Markings used to denote obstructions adjacent to the roadway, such as bridge abutments, handrails, or narrow shoulder drop-offs.

Signup and view all the flashcards

Directional Arrows

Arrows painted on the road to guide drivers towards the correct lane, often used at busy intersections to direct traffic flow.

Signup and view all the flashcards

Word Markings

Markings that include words like "STOP" or "ONLY", usually used in conjunction with signs or lane arrows to provide clear instructions to drivers.

Signup and view all the flashcards

Transverse Markings

Markings that are used to guide drivers throughout the roadway, such as lane dividers, stop lines, and parking space markings.

Signup and view all the flashcards

STOP Markings

Markings placed on the roadway to indicate where vehicles should stop, typically in conjunction with a STOP sign.

Signup and view all the flashcards

Warning Sign Overuse

Using too many warning signs can make drivers disregard them, leading to increased risks.

Signup and view all the flashcards

Warning Signs

Signs used to inform drivers about changes in road alignments, intersections, control devices, lane merges, narrow roads, highway designs, grades, road surfaces, railroad crossings, and other important road conditions.

Signup and view all the flashcards

Guide/Informative Signs

Signs that provide information about destinations, services, historical or recreational facilities, and directional or destination information.

Signup and view all the flashcards

Guide Signing in MUTCD

The Manual on Uniform Traffic Control Devices (MUTCD) provides guidelines for guide signing for conventional roads, freeways, and expressways.

Signup and view all the flashcards

Signal Cycle Length

The duration of one complete cycle of all signal indications, measured in seconds.

Signup and view all the flashcards

Traffic Phase

A group of specific green, change, and clearance intervals in a cycle assigned to certain traffic movements.

Signup and view all the flashcards

Signal Cycle

The fundamental unit in signal design and timing, referring to one complete rotation through all signal indications.

Signup and view all the flashcards

Interval

The time period in a signal cycle where no signal indication changes. It's the smallest time unit within a signal cycle.

Signup and view all the flashcards

Change Interval

The yellow indication for a specific traffic movement. It's the transition period between 'green' and 'red'.

Signup and view all the flashcards

Clearance Interval

The time period after the 'yellow' indication, during which all movements have a 'red' signal. This allows vehicles that entered the intersection legally on 'yellow' to clear before conflicting traffic is released.

Signup and view all the flashcards

Green Interval

The time period during a signal cycle when a specific movement has a green signal.

Signup and view all the flashcards

Red Interval

The time period during a signal cycle when a specific movement has a red signal.

Signup and view all the flashcards

Offset

The time difference, in seconds or as a percentage of the cycle length, between the start of a green phase at one intersection and the start of a corresponding green phase at the next intersection.

Signup and view all the flashcards

Phase (Signal Phasing)

The combination of a green interval and the change and clearance intervals that follow it. During a phase, non-conflicting movements are assigned.

Signup and view all the flashcards

Object Markers

Object markers are traffic control devices used to alert drivers about obstacles or changes in the road ahead.

Signup and view all the flashcards

Regulatory Signs

Used to inform road users about selected traffic laws or regulations, focusing on legal requirements related to traffic.

Signup and view all the flashcards

Signal Phase

A set of movements that flow and safely stop before the next set starts. It includes green, change, and clearance intervals.

Signup and view all the flashcards

Phase

Allows one set of movements to flow and stop safely before conflicting movements are released.

Signup and view all the flashcards

Protected Left Turn Phase

A signal phase where left turns are allowed with protection from oncoming traffic.

Signup and view all the flashcards

Permitted Left Turn Phase

A signal phase where traffic moves straight through the intersection.

Signup and view all the flashcards

Leading and Lagging Green Phase

A signal phase with a green interval for left turns followed by a green interval for through traffic.

Signup and view all the flashcards

Exclusive Left Turn Phase

A signal phase with a dedicated green interval for exclusive left turns, minimizing conflicts with oncoming traffic.

Signup and view all the flashcards

Exclusive Pedestrian Phase

A signal phase that prioritizes pedestrian movement, allowing them to cross the intersection without interference from vehicles.

Signup and view all the flashcards

Split-Phase

The part of a phase that's separate from the main movement, creating a special phase for a specific purpose.

Signup and view all the flashcards

Study Notes

Transport Engineering (CENG 3101) - Chapter 5: Traffic Management and Control

  • Traffic is the movement of people, goods, vehicles, trains, ships, and airplanes from one location to another.
  • Traffic management aims to make traffic movements fast, safe, and efficient.
  • Traffic control devices include markings, signs, and signals.
  • These devices are typically placed on highways, roads, traffic facilities, and public areas needing traffic control.
  • Traffic control devices communicate with drivers through color, shape, and pattern.
  • Colors used in traffic control are red, yellow, green, orange, black, blue, and brown.
  • Shapes in traffic control include octagon (stop signs), horizontal rectangles (guide signs), triangles(yield signs), pennants (no passing signs), diamonds (warnings about hazards), vertical rectangles (regulatory signs), pentagons (school signs), and circles (railroad warning signs).
  • Patterns in traffic control include double solid, solid, dashed, and broken lines.
  • Traffic signs fall into regulatory, warning, and guide categories.
  • Regulatory signs convey information on traffic laws, right-of-way, speed limits, parking, and other functions. They are typically rectangular with white backgrounds and black lettering/symbols.
  • Warning signs alert drivers to unexpected or potentially hazardous conditions, typically diamond-shaped in yellow with black lettering or symbols.
  • Guide signs provide information on destinations, services, or facilities, typically in green or blue backgrounds.
  • Traffic signals use red, yellow, and green sequences for traffic control.
  • Traffic signal operations include pretimed (fixed-time), actuated, semi-actuated, and adaptive systems.
  • Signal timing objectives include reducing vehicle delays and accident probabilities while efficiently moving people.
  • Signal cycles consist of green phases, change intervals, and clearance intervals.
  • Components of signal cycles include:
  • Cycle length: time for one complete signal rotation.
  • Interval: a period during which no signal indication changes.
  • Phases: the elements of the cycle: green, yellow, and red
  • Offset: time lapse between the beginning of a green phase at an intersection and the beginning of a corresponding green phase at the next intersection
  • There are 4 types of object markers
    • Type 1 - retro reflectors (multiple) on a yellow/black diamond panel
    • Type 2 - retro reflectors arranged horizontally/vertically on a white panel, at least 6”x12”.
    • Type 3 - alternating black and yellow stripes, angled towards the side of traffic
    • Type 4 – indicates the end of the roadway.
  • The HCM method is used to calculate saturation flow rate and capacity.
  • Webster's and HCM method can be used to determine the optimum cycle length.
  • Some elements of signal design and timing include: phase plan, cycle length, lost time, critical lane volume, pedestrian needs, yellow time, and all-red time
  • Specific examples and calculations are provided for understanding the processes involved in these stages.

Specific Topics (from the document)

  • Traffic Markings:

    • Longitudinal markings (centerlines, lane lines, pavement edge lines)
    • Transverse markings (crosswalks, parking spaces)
    • Object markers (to identify obstructions)

  • Centerlines:

    • Separate opposing traffic
    • Single/double broken/solid lines indicate passing regulations
    • Double solid lines denote no passing permitted.

  • Lane Markings:

    • Separate traffic lanes in the same direction.
    • Used on freeways, interstates, and multi-lane highways.

  • Edge Markings:

    • Indicate edges of rural roads without curbs
    • At least 150 mm from the edge
    • Preferably light reflective using minute glass beads.

  • Warning lines:

    • Alert drivers to obstacles on horizontal/vertical curves or no-overtaking zones.
    • Consist of broken lines with specific dimensions.

  • Transverse markings:

    • All transverse markings are white.
    • Types include Broken Yellow Line, Double Solid Yellow Line, Solid Yellow Line, Broken White Line, Double Solid White Line, Solid White Line, and Dotted White Line.

  • Crosswalk markings:

    • Marked at intersections with high conflict between vehicles and pedestrians.
    • Use zebra markings to identify crosswalks.

  • Parking space markings:

    • Not purely transverse, containing longitudinal and transverse elements
    • Used to mark parking zones and spaces.

  • Directional arrows:

    • Used to guide drivers to the right lane for busy intersections.

  • Word and Symbol Markings:

    • Use words like "ONLY", "STOP", and "SCHOOL" in conjunction with other markings.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Quiz Team

Related Documents

Transport Engineering (CENG 3101) Chapter 5: Traffic Management and Control PDF

Description

Test your knowledge on traffic markings, object markers, and road signs in this informative quiz. Understand the purpose and design of various traffic sign categories and the rules associated with them. Perfect for those studying road safety and traffic management.

More Like This

Understanding Traffic Signs and Road Markings
30 questions

Understanding Traffic Signs and Road Markings

EyeCatchingBlackberryBush avatar
EyeCatchingBlackberryBush
Road Signs and Markings
10 questions

Road Signs and Markings

ExcitingFlashback3719 avatar
ExcitingFlashback3719
Drivers Ed: Signs, Signals, Markings
12 questions

Drivers Ed: Signs, Signals, Markings

HandsomeVariable avatar
HandsomeVariable
Road Signs and Markings Quiz
22 questions

Road Signs and Markings Quiz

IntelligibleOmaha avatar
IntelligibleOmaha
Use Quizgecko on...
Browser
Open
Browser
Browser