IMSA TRAFFIC TECH 1 NEW EXAM WITH COMPLETE
SOLUTIONS 100% VERIFIED
What are the special signal faces for Lane use control signals? - ANSWER Red X
symbols and yellow or green down arrow symbols
Supplementary signs are sometimes used to explain what on "Lane Use Coltrol
Signals"? - ANSWER Their meaning and intent
Lane use control signals may be used on what? - ANSWER 1) more than one lane is
reversed in direction
2) two way or one way left turns or allowed during peak period Reversible operations
but those turns are from a different lane than used during off peak period
3) other unusual or complex operations are included in the reversible lien pattern
4) An emergency study indicates that the safety and efficiency of the traffic operations
of a reversible Lane system will be improved by Lane use control signal
5) Shown crash experience occurring with reversible lane operations controlled by
static signs that can be corrected by using lane use control signals at the times of
transition between peak and off-peak patterns
A system of lane use control signals must be coordinated with each other because why?
- ANSWER So that they are operated uniformity and consistently
What is a toll plaza signal? - ANSWER It's a multiple lanes where one or more lanes are
sometimes closed to traffic. A lane-use control signal shall be installed above the center
of each toll plaza lane to indicate the open or closed status of the control lane.
What is a traffic signal cycle or other words ( cycle length)? - ANSWER Is the total
elapsed Time between the start of a specific display until that display comes up again
,The cycle is sometimes referred to as a? & why? - ANSWER " Dial" & because a rotating
dial is used to control the timing of the various signal displays
What is the traffic signal phase? - ANSWER Commonly associated with the specific
assigned timing function in the traffic signal controller
If an intersection that has four through phases and four left turn faces is to be in? -
ANSWER Eight phase intersectionq
What are the "1-8 even phase numbers " asign too? - ANSWER Through movements
What " phases" are the major-street through movements? - ANSWER Phases 2 and 6
Odd Numbers are assigned to what "phase " - ANSWER Left turn phases
An intersection that has four through phases and four left turn faces is what? - ANSWER
Said to be in "eight phase intersection"
What is a interval? - ANSWER Is the amount of time that a particular indication is giving
during a phase
What is a "rings"? - ANSWER is a serious of conflicting phases that occur in an
established order, but can never occur simultaneously ( in the same time) with each
other.
There are two types of "rings " for controllers they are usually what? - ANSWER "Single
ring" or "dual ring"
The number of rings is depending on what? - ANSWER The phasing that is required for
the intersection operation
, What is the boundary point in the preferred sequence of a dual ring controller that both
rings must simultaneously ( at the same time) cross? - ANSWER Barrier
On a dual controller, there are two barriers and what are those? - ANSWER Two barriers
-One for leaving the major street and -one for leaving the minor street
Traffic signal controllers that operate in a fully- actuated or semi-actuated mode use
some type of what? - ANSWER Vehicle detection equipment
What does vehicle detection system do? - ANSWER Detects vehicles on the intersection
approaches and sends a message or call to the controller that an approach needs to
receive a green indication. So they can proceed.
How do loop detectors operate on what? - ANSWER Inductive
Loop detectors can be installed in a variety of configurations and shapes including? -
ANSWER Square, rectangular,double rectangular(quadrupole),diamond,
circular and octagonal
what do some other Double Rectangular loop dectectors have in common? ANSWER -
quadrupole
For whatever configuration of loop,, in placement of the wire in the loop is requiring
multiple what? - ANSWER Wraps or "Turns" of wire to form the loop
A 2 foot by 6 foot loop might need as little as what amount of turns - ANSWER 5 turns
6foot by 20 foot loop might require how many turns? - ANSWER 3 turns
6foot by 60 foot loop might require how many turns? - ANSWER Require 2 turns
SOLUTIONS 100% VERIFIED
What are the special signal faces for Lane use control signals? - ANSWER Red X
symbols and yellow or green down arrow symbols
Supplementary signs are sometimes used to explain what on "Lane Use Coltrol
Signals"? - ANSWER Their meaning and intent
Lane use control signals may be used on what? - ANSWER 1) more than one lane is
reversed in direction
2) two way or one way left turns or allowed during peak period Reversible operations
but those turns are from a different lane than used during off peak period
3) other unusual or complex operations are included in the reversible lien pattern
4) An emergency study indicates that the safety and efficiency of the traffic operations
of a reversible Lane system will be improved by Lane use control signal
5) Shown crash experience occurring with reversible lane operations controlled by
static signs that can be corrected by using lane use control signals at the times of
transition between peak and off-peak patterns
A system of lane use control signals must be coordinated with each other because why?
- ANSWER So that they are operated uniformity and consistently
What is a toll plaza signal? - ANSWER It's a multiple lanes where one or more lanes are
sometimes closed to traffic. A lane-use control signal shall be installed above the center
of each toll plaza lane to indicate the open or closed status of the control lane.
What is a traffic signal cycle or other words ( cycle length)? - ANSWER Is the total
elapsed Time between the start of a specific display until that display comes up again
,The cycle is sometimes referred to as a? & why? - ANSWER " Dial" & because a rotating
dial is used to control the timing of the various signal displays
What is the traffic signal phase? - ANSWER Commonly associated with the specific
assigned timing function in the traffic signal controller
If an intersection that has four through phases and four left turn faces is to be in? -
ANSWER Eight phase intersectionq
What are the "1-8 even phase numbers " asign too? - ANSWER Through movements
What " phases" are the major-street through movements? - ANSWER Phases 2 and 6
Odd Numbers are assigned to what "phase " - ANSWER Left turn phases
An intersection that has four through phases and four left turn faces is what? - ANSWER
Said to be in "eight phase intersection"
What is a interval? - ANSWER Is the amount of time that a particular indication is giving
during a phase
What is a "rings"? - ANSWER is a serious of conflicting phases that occur in an
established order, but can never occur simultaneously ( in the same time) with each
other.
There are two types of "rings " for controllers they are usually what? - ANSWER "Single
ring" or "dual ring"
The number of rings is depending on what? - ANSWER The phasing that is required for
the intersection operation
, What is the boundary point in the preferred sequence of a dual ring controller that both
rings must simultaneously ( at the same time) cross? - ANSWER Barrier
On a dual controller, there are two barriers and what are those? - ANSWER Two barriers
-One for leaving the major street and -one for leaving the minor street
Traffic signal controllers that operate in a fully- actuated or semi-actuated mode use
some type of what? - ANSWER Vehicle detection equipment
What does vehicle detection system do? - ANSWER Detects vehicles on the intersection
approaches and sends a message or call to the controller that an approach needs to
receive a green indication. So they can proceed.
How do loop detectors operate on what? - ANSWER Inductive
Loop detectors can be installed in a variety of configurations and shapes including? -
ANSWER Square, rectangular,double rectangular(quadrupole),diamond,
circular and octagonal
what do some other Double Rectangular loop dectectors have in common? ANSWER -
quadrupole
For whatever configuration of loop,, in placement of the wire in the loop is requiring
multiple what? - ANSWER Wraps or "Turns" of wire to form the loop
A 2 foot by 6 foot loop might need as little as what amount of turns - ANSWER 5 turns
6foot by 20 foot loop might require how many turns? - ANSWER 3 turns
6foot by 60 foot loop might require how many turns? - ANSWER Require 2 turns
