View source for 616.10 TTC Zone Pavement Markings (MUTCD Chapter 6J)

[[Category:616 Temporary Traffic Control (MUTCD Part 6)|616.10]]
=={{SpanID|616.10.1}}616.10.1 Pavement Markings in TTC Zones (MUTCD Section 6J.01) ==

'''Support'''. Pavement markings are installed or existing markings are maintained or enhanced in TTC zones to provide road users with a clearly defined path for travel through the TTC zone in day, night, and twilight periods under both wet and dry pavement conditions.

'''Guidance'''. The work should be planned and staged to provide for the placement and removal of the pavement markings in a way that minimizes the disruption to traffic flow approaching and through the TTC zone during the placement and removal process.

'''Standard. '''Existing pavement markings shall be maintained in all long-term stationary (see  [[616.14 Types of Temporary Traffic Control Zone Activities (MUTCD Chapter 6N)#616.14.1|EPG 616.14.1]]) TTC zones in accordance with [[620.1 General (MUTCD Chapter 3A)|EPG 620.1]] and [[620.2 Pavement and Curb Markings (MUTCD Chapter 3B)|EPG 620.2]], except as otherwise provided for temporary pavement markings in  [[#616.10.2|EPG 616.10.2]]. Pavement markings shall match the alignment of the markings in place at both ends of the TTC zone. Pavement markings shall be placed along the entire length of any paved detour or temporary roadway prior to the detour or roadway being opened to road users.

'''Guidance'''. For long-term stationary operations, pavement markings in the temporary traveled way that are no longer applicable should be removed or obliterated as soon as practical. Pavement marking obliteration should remove the non-applicable pavement marking material, and the obliteration method should minimize pavement scarring.

'''Standard. '''Painting over existing pavement markings with black paint or spraying with asphalt shall not be accepted as a substitute for removal or obliteration. 

'''Option'''. Removable, non-reflective, preformed tape that is approximately the same color as the pavement surface may be used where markings need to be covered temporarily.

=={{SpanID|616.10.2}}616.10.2 Temporary Markings (MUTCD Section 6J.02)  ==

'''Support'''. Temporary markings are those pavement markings or devices that are placed within TTC zones to provide road users with a clearly defined path of travel through the TTC zone when the permanent markings are either removed or obliterated during the work activities. Temporary markings are typically needed during the reconstruction of a road while it is open to traffic, such as overlays or surface treatments or where lanes are temporarily shifted on pavement that is to remain in place. 

'''Guidance'''. Unless justified based on engineering judgment, temporary pavement markings should not remain in place for more than 14 days after the application of the pavement surface treatment or the construction of the final pavement surface on new roadways or over existing pavements.

The temporary use of edge lines, channelizing lines, lane-reduction transitions, gore markings, and other longitudinal markings, and the various non-longitudinal markings (such as stop lines, railroad crossings, crosswalks, words, symbols, or arrows) should be in accordance with [https://www.modot.org/media/16897 Standard Plan 620.10] and [[:Category:620 Pavement Marking (MUTCD Part 3)|EPG 620]].

Short-term pavement marking tape should be used in locations where the marking will be in place no more than two weeks. Short-term pavement marking paint is not typically removed. If removal is required, removable tape should be used.

'''Standard. '''Warning signs, channelizing devices, and delineation shall be used to indicate required road user paths in TTC zones where it is not possible to provide a clear path by pavement markings.

Except as otherwise provided in this Section, all temporary pavement markings for no-passing zones shall comply with the requirements of [[620.1 General (MUTCD Chapter 3A)|EPG 620.1]] and [[620.2 Pavement and Curb Markings (MUTCD Chapter 3B)|EPG 620.2]]. All temporary broken (intermittent) line pavement markings shall use the same cycle length as permanent markings and shall have line segments that are at least 4 feet long.

'''Guidance'''. All pavement markings and devices used to delineate road user paths should be reviewed during daytime and nighttime periods.

'''Support. '''MoDOT does not sign for passing zones. 

'''Guidance. '''If used, the NO CENTER LINE sign should be placed in accordance with  [[616.8 TTC Zone Warning Signs (MUTCD Chapter 6H)#616.8.26|EPG 616.8.26]].

=={{SpanID|616.10.3}}616.10.3 Temporary Raised Pavement Markers (MUTCD Section 6J.03)  ==

'''Option'''. Retroreflective raised pavement markers may be substituted for markings of other types in TTC zones.

'''Standard. '''If used, the color and pattern of the raised pavement markers shall simulate the color and pattern of the markings for which they substitute.

If temporary raised pavement markers are used to substitute for broken (intermittent) line segments, a group of at least three retroreflective markers equally spaced at no greater than 5 feet shall be installed every 40 feet. 

If temporary retroreflective raised pavement markers are used to substitute for solid lines, the markers shall be equally spaced at no greater than 20 feet.

'''Option'''. Temporary raised pavement markers may be used to substitute for broken (intermittent) line segments by using at least two retroreflective markers placed at each end of a segment of 2 to 5 feet in length, using the same cycle length as permanent markings.

[https://www.modot.org/media/16897 Standard Plan 620.10] may be used to substitute for the number, spacing, and layout of temporary raised pavement markers in a work zone. 

'''Guidance'''. Raised pavement markers should be considered for use along surfaced detours or temporary roadways, and other changed or new travel-lane alignments.

'''Option'''. Temporary marking tape may be used to establish experimental lanes or intersection markings to determine the markings effectiveness prior to installing the permanent markings. It may also be used to mark temporary centerlines following spot sealing and patching operations.

=={{SpanID|616.10.4}}616.10.4 Delineators (MUTCD Section 6J.04)  ==

'''Support'''. MoDOT does not use delineators in work zones.