Delaware Administrative Code
Title 2 - Transportation
2000 - Department of Transportation
2400 - Division of Transportation Solutions
2402 - Manual on Uniform Traffic Control Devices (MUTCD)
Part 4 - Highway Traffic Signals
Chapter 4D - TRAFFIC CONTROL SIGNAL FEATURES
Section 4D.22 - Signal Indications for Permissive Only Mode Right-Turn Movements
Universal Citation: 2 DE Admin Code 4D.22
Current through Register Vol. 28, No. 3, September 1, 2024
Standard:
01 If a shared signal face is provided for a permissive only mode right turn, it shall meet the following requirements (see Figure 4D-13):
A. It shall be capable of displaying the
following signal indications: steady CIRCULAR RED, steady CIRCULAR YELLOW, and
CIRCULAR GREEN. Only one of the three indications shall be displayed at any
given time.
B. During the
permissive right-turn movement, a CIRCULAR GREEN signal indication shall be
displayed.
C. A permissive only
shared signal face, regardless of where it is positioned and regardless of how
many adjacent through signal faces are provided, shall always simultaneously
display the same color of circular indication that the adjacent through signal
face or faces display.
D. If the
permissive only mode is not the only right-turn mode used for the approach, the
signal face shall be the same shared signal face that is used for the
protected/permissive mode (see Section 4D.24) except that the right-turn GREEN
ARROW and right-turn YELLOW ARROW signal indications shall not be displayed
when operating in the permissive only mode.
Option:
01A (DE Revision) On state-maintained roads,
in locations where right turns may be prohibited during special circumstances,
a shared signal face may be used consisting of the following signal
indications: a CIRCULAR GREEN, CIRCULAR YELLOW, CIRCULAR RED and right-turn RED
ARROW. For additional emphasis, the NO TURN ON RED ARROW (R10-11-DE) sign may
be used.
Standard:
02 If a separate right-turn signal face is being operated in a permissive only right-turn mode, a CIRCULAR GREEN signal indication shall not be used in that face.
03 (DE Revision) If a separate right-turn signal face is being operated in a permissive only right-turn mode and a flashing right-turn yellow arrow signal indication is provided, it shall meet the following requirements (see Figure 4D-14):
A. It shall be capable of displaying one of
the following sets of signal indications:
1.
Steady right-turn RED ARROW, steady right-turn YELLOW ARROW, and flashing
right-turn YELLOW ARROW. Only one of the three indications shall be displayed
at any given time.
2. Steady
CIRCULAR RED, steady right-turn YELLOW ARROW, and flashing right-turn YELLOW
ARROW. Only one of the three indications shall be displayed at any given time.
If the CIRCULAR RED signal indication is sometimes displayed when the signal
faces for the adjacent through lane(s) are not displaying a CIRCULAR RED signal
indication, a RIGHT TURN SIGNAL (R10-10R) sign (see Figure 2B-27) shall be used
unless the CIRCULAR RED signal indication in the separate right-turn signal
face is shielded, hooded, louvered, positioned, or designed such that it is not
readily visible to drivers in the through lane(s).
B. During the permissive right-turn movement,
a flashing right-turn YELLOW ARROW signal indication shall be
displayed.
C. A steady right-turn
YELLOW ARROW signal indication shall be displayed following the flashing
right-turn YELLOW ARROW signal indication.
D. When the separate right-turn signal face
is providing a message to stop and remain stopped, a steady right-turn RED
ARROW signal indication shall be displayed if it is intended that right turns
on red not be permitted (except when a traffic control device is in place
permitting a turn on a steady RED ARROW signal indication) or a steady CIRCULAR
RED signal indication shall be displayed if it is intended that right turns on
red be permitted. Pursuant to Delaware Code, Title 21, Chapter 41, Subchapter
II, §4108, right turns are not permitted on a steady RED ARROW signal
indication. Therefore, traffic control devices permitting turns on a steady RED
ARROW shall not be used.
E. It
shall be permitted to display a flashing right-turn YELLOW ARROW signal
indication for a permissive right-turn movement while the signal faces for the
adjacent through movement display steady CIRCULAR RED signal
indications.
F. During steady mode
(stop-and-go) operation, the signal section that displays the steady right-turn
YELLOW ARROW signal indication during change intervals shall not be used to
display the flashing right-turn YELLOW ARROW signal indication for permissive
right turns.
G. During flashing
mode operation (see Section 4D.30), the display of a flashing right-turn YELLOW
ARROW signal indication shall be only from the signal section that displays a
steady right-turn YELLOW ARROW signal indication during steady mode
(stop-and-go) operation.
H. If the
permissive only mode is not the only right-turn mode used for the approach, the
signal face shall be the same separate right-turn signal face with a flashing
YELLOW ARROW signal indication that is used for the protected/permissive mode
(see Section 4D.24) except that the right-turn GREEN ARROW signal indication
shall not be displayed when operating in the permissive only mode.
Option:
04 When an engineering study determines that each and every vehicle must successively come to a full stop before making a permissive right turn, a separate right-turn signal face with a flashing right-turn RED ARROW signal indication during the permissive right-turn movement may be used.
Standard:
05 (DE Revision) If a separate right-turn signal face is being operated in a permissive only right-turn mode and a flashing right-turn RED arrow signal indication is provided, it shall meet the following requirements (see Figure 4D-15):
A.
It shall be capable of displaying one of the following sets of signal
indications:
1. Steady or flashing right-turn
RED ARROW, steady right-turn YELLOW ARROW, and right-turn GREEN ARROW. Only one
of the three indications shall be displayed at any given time. The GREEN ARROW
indication is required in order to provide a three-section signal face, but
shall not be displayed during permissive only mode.
2. Steady CIRCULAR RED on the left and steady
right-turn RED ARROW on the right of the top position, steady right-turn YELLOW
ARROW in the middle position, and right-turn GREEN ARROW in the bottom
position. Only one of the four indications shall be displayed at any given
time. The GREEN ARROW indication is required in order to provide three vertical
positions, but shall not be displayed during permissive only mode. If the
CIRCULAR RED signal indication is sometimes displayed when the signal faces for
the adjacent through lane(s) are not displaying a CIRCULAR RED signal
indication, a RIGHT TURN SIGNAL (R10-10R) sign (see Figure 2B-27) shall be used
unless the CIRCULAR RED signal indication in the separate right-turn signal
face is shielded, hooded, louvered, positioned, or designed such that it is not
readily visible to drivers in the through lane(s).
B. During the permissive right-turn movement,
a flashing right-turn RED ARROW signal indication shall be displayed, thus
indicating that each and every vehicle must successively come to a full stop
before making a permissive right turn.
C. A steady right-turn YELLOW ARROW signal
indication shall be displayed following the flashing right-turn RED ARROW
signal indication.
D. When the
separate right-turn signal face is providing a message to stop and remain
stopped, a steady right-turn RED ARROW signal indication shall be displayed if
it is intended that right turns on red not be permitted (except when a traffic
control device is in place permitting a turn on a steady RED ARROW signal
indication) or a steady CIRCULAR RED signal indication shall be displayed if it
is intended that right turns on red be permitted. Pursuant to Delaware Code,
Title 21, Chapter 41, Subchapter II, §4108, right turns are not permitted
on a steady RED ARROW signal indication. Therefore, traffic control devices
permitting turns on a steady RED ARROW shall not be used.
E. The display of a flashing right-turn RED
ARROW signal indication for a permissive right-turn movement while the signal
faces for the adjacent through movement display steady CIRCULAR RED signal
indications and the opposing left-turn signal faces display left-turn GREEN
ARROW signal indications for a protected left-turn movement shall be
permitted.
F. A supplementary sign
shall not be required. If used, it shall be a RIGHT TURN YIELD ON FLASHING RED
ARROW AFTER STOP (R10-27) sign (see Figure 2B-27).
Option:
06 The requirements of Item A.1 in Paragraph 5 may be met by a vertically-arranged signal face with a horizontal cluster of two right-turn RED ARROW signal indications, the left-most of which displays a steady indication and the right-most of which displays a flashing indication (see Figure 4D-15).
Support:
07 (DE Revision) DelDOT's "Traffic Design Manual" contains further information regarding signal indications for permissive only mode right-turn movements.
Disclaimer: These regulations may not be the most recent version. Delaware may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
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