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Work Zone Temporary Traffic Control, Exams of Social Sciences

United States International UniversitySocial Sciences

Detailed information on the principles and procedures of temporary traffic control (ttc) in work zones. It covers various aspects of ttc, including the placement and spacing of traffic control devices, the role and responsibilities of flaggers, the use of arrow boards and attenuators, and the importance of public relations and information dissemination. The document also discusses the relevant standards and guidelines, such as the manual of uniform traffic control devices (mutcd), and emphasizes the need for proper training and certification of individuals responsible for implementing ttc measures. The comprehensive coverage of ttc concepts, best practices, and regulatory requirements makes this document a valuable resource for transportation professionals, construction workers, and anyone involved in managing work zone safety.

Typology: Exams

2023/2024

Available from 09/17/2024

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WORK ZONE TEMPORARY TRAFFIC CONTROL TECH
PRE-QUIZ
The work zone starts at the first advance warning sign; therefore, where should the
flagger stand when directing traffic in a TTC (work) zone? - Answers -on the shoulder
adjacent ti traffic being controlled
How many orange and black TTC signs should there be in each direction on a 2-way, 2-
lane rural roadway? - Answers -Three
Orange and black TTC signs in each direction on a 2-way, 2-lane rural roadway what
should the signs spacing be - Answers -500ft
How many feet apart should the advanced warning signs be on a high speed urban
roadway? - Answers -350
Advanced warning signs for additional emphasis, signs may be posted - Answers -on
the left hand side of the highway
Taper length refers to: - Answers -the distance required to safely route traffic from one
lane to another
The taper length is based upon: - Answers -width of the lane closed and speed of the
roadway
In a taper, the maximum distance between channelizing devices should be: - Answers -
equal in feet to the speed limit
On a barricade, if the stripes start at the upper right side and angle down to the lower
left side; - Answers -traffic should pass to the left
When flagging at a spot obstruction, a position may have to be taken on the shoulder
opposite the barricaded section to operate effectively - Answers -True
During nighttime conditions, arrow boards needs to be reduced in brightness - Answers
-true
Which factors should you consider in formulating a TTC plan? - Answers -type of work
to be done
traffic volume
traffic speed
school bus routes
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WORK ZONE TEMPORARY TRAFFIC CONTROL TECH

PRE-QUIZ

The work zone starts at the first advance warning sign; therefore, where should the flagger stand when directing traffic in a TTC (work) zone? - Answers -on the shoulder adjacent ti traffic being controlled How many orange and black TTC signs should there be in each direction on a 2-way, 2- lane rural roadway? - Answers -Three Orange and black TTC signs in each direction on a 2-way, 2-lane rural roadway what should the signs spacing be - Answers -500ft How many feet apart should the advanced warning signs be on a high speed urban roadway? - Answers - Advanced warning signs for additional emphasis, signs may be posted - Answers -on the left hand side of the highway Taper length refers to: - Answers -the distance required to safely route traffic from one lane to another The taper length is based upon: - Answers -width of the lane closed and speed of the roadway In a taper, the maximum distance between channelizing devices should be: - Answers - equal in feet to the speed limit On a barricade, if the stripes start at the upper right side and angle down to the lower left side; - Answers -traffic should pass to the left When flagging at a spot obstruction, a position may have to be taken on the shoulder opposite the barricaded section to operate effectively - Answers -True During nighttime conditions, arrow boards needs to be reduced in brightness - Answers -true Which factors should you consider in formulating a TTC plan? - Answers -type of work to be done traffic volume traffic speed school bus routes

The rerouting of traffic onto a temporary bypass road is known as a: - Answers - diversion Parking signs are classified as: - Answers -regulatory Pavement markings no longer needed should be removed by: - Answers -grinding A TTC zone should be checked: - Answers -routinely Traffic control devices include: - Answers -Signs Signals pavement markings The Federal Highway Administration's national standard for traffic control devices is the:

  • Answers -Manual of uniform traffic control devices In the manual, an Option condition is on that is: - Answers -a statement of a permissive condition A TTC plan is a: - Answers -temporary traffic control plan The MUTCD states that individuals responsible for the implementation of TTC measures should: - Answers -be trained and/or certified TTC principles and procedures include: - Answers -traffic safety, movement, and guidance TTC zone inspection TTC zone maintenance The based on the fundamental principles of TTC work zone should be inspected: - Answers -during both daytime and nighttime The MUTCD indicates that a "standard" is a mandatory practice - Answers -True The MUTCD indicates that a "guidance" is a recommended practice - Answers -True The MUTCD indicates that a "option" is a permissive condition - Answers -True At night time and/or on high speed roads greater than 45 mph, cones shall be: - Answers -retoreflectorized and have at least two white bands/stripes and at least 28" tall On a rural, 2-lane road, where would you place the flagger in respect to the beginning of a taper for a closed lane? - Answers -at the beginning of the taper The STOP/SLOW paddle is preferred over the flag - Answers -True

Reasonable and prudent action Notice Flashing or sequential arrow boards shall be capable of a minimum___percent dimming for night operations - Answers - The Five requirements of a traffic control device are: - Answers -Fulfill a need Demand attention Convey clear simple message Command respect Adequate time to respond What are the three classes of traffic signs? - Answers -Regulatory Warning Guide Before regulatory signs are removed or superseded by a temporary regulatory sign,_______ must be obtained form the governing jurisdiction. - Answers - Authorization What are the colors assigned exclusively to TTC warning and guide signs? - Answers - Orange and Black What colors are used on a ROAD CLOSED sign? - Answers -Orange and White A high level warning device shall consist of a minimum of ____ flags and shall maintain a height of ____ to the lowest point of the flag material. - Answers -2 and 8ft In real areas, post mounted warning signs should be placed _____to____ feet from the edge of the roadway to the leading edge of the sign - Answers -6 to 12 In business, commercial. or residential areas, signs can be placed a minimum of ____ feet from the edge of roadway to the leading edge of the sign - Answers -2 feet The absolute minimum height for ground-mounted signs in business, commercial, or residential area is _____ - Answers - When mounting a secondary sign below a post-mounted roadside sign, the secondary sign may be mounted____less than the primary roadside sign with a minimum height of six feet - Answers - The general rule for sign spacing is to times the speed for business, commercial, or residential areas and ____to____ times the speed for rural areas - Answers -4 to 8 and 8 to 12

Suggested advance warning sign spacing for different types of roadways can be found in the - Answers -MUTCD The minimum height for traffic cones in low-speed, low volume areas is ____inches - Answers -18 inches The minimum height for traffic cones in high-speed, high-volume is____inches - Answers -28 inches For nighttime operations, traffic cones shall be a minimum of____ inches in height and have_____ - Answers -28 inches and retroflective _______are more stable than cones, but harder to transport - Answers -Drums/barrels To prevent barricades from being blown over______may be used to hold them in place

  • Answers -sand bags The standard colors for barricades are ____and_____ - Answers -orange and white Type I and type II barricades should always be a minimum of______inches in height and gave a minimum rail length of ____inches - Answers -36 and 24 Type III barricades should be a minimum of ___feet high and have a minimum rail length of ___ feet - Answers -5 feet and 4 feet If the orange and white stripes on a barricade are sloping downward to the left, which side of the barricade should traffic pass? - Answers -Left When used for nighttime operations, tubular markers shall be____ inches high and have____ - Answers -28 inches retroflective Plastic drums (barrels) shall be a minimum of____ inches in height and ____ inches in diameter. Each drum shall have a minimum of two_____ stripes and two____ stripes. - Answers -36inches 18inches orange white What color is a SMV symbol? - Answers -orange and red Four types of arrow boards are commonly used... - Answers -Type A: low speed urban Type B: intermediate speed Type C: high speed Type D: moving

6 inches The standard red flag used for (emergency) flagging is at least____ inches square and fastened to a ______inch staff - Answers -24inches 36 inches The night flagging station should be.... - Answers -illuminated Flaggers should... - Answers -never stand on the open roadway always face the oncoming traffic not mingle with workers not block or be blocked by signs When two flaggers are used and you are in doubt about the other flagger's message is, what message must you display to oncoming traffic? - Answers -Stop You should not begin a flagging operation until the ______ sign has been placed. - Answers -Flagger ahead If a driver refuses to obey your signal, what should you do? - Answers -get out of the way warn the workers get their license number On a roadway posted at 40 MPH, how far in advance of the work space should the flagger station be? - Answers -305 feet Where is the flagging station when only one flagger is used for two directions of traffic? - Answers -opposite work area When two or more flaggers are used, one flagger should be____ - Answers -in charge The is of flags, as a hand signaling device, should be limited to ____ situations - Answers -emergency If the work area requires a tapered lane closure, the flagging station should be located at the____of the taper - Answers -start When a flagger is used, the maximum taper length is a 1-lane, 2-way taper is____ - Answers -100 feet When two flaggers are used and there are sight obstructions, which of the following may be used? - Answers -Flag-carrying vehicle walkie-talkie official car pilot car

When the "FLAGGER AHEAD" sign is posted and no flagging is taking place, the sign should be_____or_____ - Answers -Covered or removed In emergency situations, which of the following can be used until traffic control devices arrive? - Answers -Emergency vehicle flashers flash lights flares All flaggers must use the same three standard signals: - Answers -Stop Slow Proceed The recommended longitudinal buffer space for a 50 MPH roadway is _____ feet - Answers -425 feet In the ______area, drivers are informed of what to expect. - Answers -Advanced warning The redirection of the drivers normal path occurs at the beginning of the _______ area.

  • Answers -Transition The area of the roadway where work takes place is called the _______ area. - Answers -Activity The area that is used to return traffic to the normal path is the _________ area. - Answers -Termination Longitudinal buffer space separates approaching traffic from the _______ - Answers - Work space A lateral buffer space may be used to separate the ______ form the work space or potentially hazardous area. - Answers -Traffic space The two major factors to calculate taper lengths for cones are _____ and _____ - Answers -speed width The taper length formula for speed limits of 45 MPH or grater is - Answers -width x speed As a general rule, the maximum spacing in feet between traffic control devices in a taper is equal to the _______ - Answers -speed limit in MPH A diversion is - Answers -temporary route to a temporary roadway