signing and pavement marking changes in the 2009 manual on uniform traffic · pdf...
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Signing and Pavement Marking
Changes in the 2009 Manual on Uniform Traffic Control Devices
(MUTCD)
Arizona Department of Transportation
Adoption of 2009 MUTCD • Adopted by FHWA
December 2009 (nationwide)
• Adopted by ADOT January 13, 2012 (state of Arizona)
Arizona MUTCD Supplement • Modifies MUTCD for
Arizona practice • Applies to all Arizona
roadways open to publiic travel
• Available on ADOT website (combined MUTCD + Supp)
• http://www.azdot.gov/docs/default-source/business/manual-on-uniform-traffic-control-devices-(mutcd)---2009-edition.pdf
2009 MUTCD + AZ Supplement • New project plans developed
under new MUTCD + Supplement
• Policies, specifications, standard drawings update well underway
• New 2009-compliant ADOT Manual of Approved Signs nearly complete
Manual of Approved Signs (MOAS)
• Includes standard signs approved for use in Arizona
• Includes unique Arizona-specific signs
• Applies statewide
• http://www.azdot.gov/business/engineering-and-construction/traffic/manual-of-approved-signs
Part 2 - Signs Arizona-Specific Sign Codes
• All Arizona-specific signs (ones not in Federal MUTCD, but are in MOAS) are given new codes • 2009 MUTCD added so many new signs
that the added signs duplicated existing AZ sign codes
• All AZ-specific signs changed to "100-series" codes
“85th Percentile” • New requirements to evaluate 85th percentile speeds
in addition to posted or statutory speeds • Written into many new Standards:
• Sign spacing • Sign placement • No-passing zones • Traffic signals • Work zones
• May need to document on traffic plans which speed was used for design, & why it was selected
• Agencies may have to modify policies
Part 2 - Signs Minimum Retroreflectivity
• New minimum retroreflectivity standards • Based on sheeting types • Minimum contrast levels required
• Compliance procedures - can use one or more of: • Visual nighttime inspection • Measure with reflectometer • Replace at end of expected life • Replace all signs in area/corridor • Test “control signs” in lieu of all signs
• FHWA: agencies need to develop program to upgrade signs
Part 2 - Signs Sign Sizes
• New mandatory minimum sizes for guide signs (conventional & freeway)
• Larger mandatory minimum sizes for signs: • On multi-lane streets • At intersections with higher-speed streets
Part 2 - Signs Sign Sizes
• New categories for single lane & multi-lane roadways • Larger sign sizes for many applications • New minimum size tables for guide signs
Part 2 - Signs Turn Lane Signs
• Where used, supplemental plaques are now required to be mounted above post-mounted turn lane signs
Part 2 - Signs New Signs
• Many new signs added in 2009 edition • Almost 30 new signs in R3 series
alone • ADOT MOAS not including all signs -
some not used in Arizona (toll roads, managed lanes, jughandles)
Summary of MUTCD Requirements
R3-
R3-
R3-
R3-
Mounting
Fewer than 3 Thru Lanes 3 or More Thru Lanes
1 Turn Lane 2 Turn Lanes 1 Turn Lane 2 Turn Lanes
Overhead Structure
R3-5 [1] R3-6 [1]
R3-5 [1] R3-6 [1] R3-8 [1]
R3-5 [3] R3-6 [4]
R3-5 [3] R3-6 [4]
Post-Mounted
R3-5 [1] R3-6 [1] R3-7 [2]
R3-6 [1] R3-8 [1]
R3-7 [2]
R3-8 [5]
[1] – Sec. 2B.19, ¶ 07 [2] – Sec. 2B.20, ¶ 03 [3] – Sec. 2B.20, ¶ 04
OTHER REFERENCES Sec. 2B.19, ¶ 07 & 08 Sec. 2B.22, ¶ 03 & 04
[4] – Sec. 2B.21, ¶ 05 [5] – Sec. 2B.22, ¶ 05
R3-7 R3-7 R3-8
R3-5
R3-6
R3-5
R3-6
R3-8
R3-7 R3-7
(slide courtesy of Barbara Schwab)
Part 2 - Signs ONE WAY Signs
• New Standards for ONE WAY signs on divided roadways
• Compliance date December 2019
Part 2 - Signs ONE WAY Sign Sizes
• MUTCD is ambiguous on sign sizes
• ADOT resolution: sign size defined by roadway viewing the ONE WAY sign, not the one-way roadway
Part 2 - Signs Warning Signs – Table 2C-4
• Condition A (speed reduction or lane change) modified in Arizona Supplement
Part 2 - Signs Curve Signing – Table 2C-5
• Significant change in signing practice • Signs, large arrows, chevrons now required in many situations • Revised PGP may change posted advisory speeds • Compliance date: December 2019
Part 2 - Signs Chevrons – Table 2C-6
• New specifications on chevron spacing • Based on speed and radius • May require closer spacing in new & replacement
installations
Part 2 - Signs Upper / Lower Case Lettering
• 2009 MUTCD: Guide sign destinations (including street names) MUST be upper/lower case
• Requires taller sign panel • Not a big impact for some agencies • Will impact agencies that own large
numbers of residential / collector streets
Part 2 - Signs Street Name Signs
• New street name signs: must use upper & lower case lettering (no “all-caps”)
Part 2 - Signs Sign Arrows
• Loop arrows no longer allowed • Curved-stem arrows: Only at roundabouts
• New designations for arrows • Type A & B (still the same)
• for freeways • Type C – now angled arrow
• Type D – for conventional signs
Part 2 - Signs Roundabout Signing
• New standard designs for roundabout signs
• Map signs • Directional signs • Regulatory signs • Warning signs
Part 2 - Signs Freeway Signing
• Now two major types of freeway guide signs for multiple-lane exits and major interchanges
Part 2 - Signs Signs At Option-Lane Exits
• Will require much wider & taller signs • 40-50% taller, up to 300% wider
• Signs require new larger support structures
• No technical guidance issued yet
Part 2 - Signs HOV & Left Exit Signing
• New requirements for added HOV signing
• Left exits shall have yellow LEFT EXIT tab - 2014 compliance date
• HOV guide signing shall be predominantly green with black/white HOV info
Part 2 - Signs Recreational & Cultural Signing
• Completely new system of symbols • Symbols are not consistent with ones
used on other sign types • Do not use R&C signing if a standard
sign will work
Part 3 – Markings Dotted Lines
• Dotted lines now required in advance of: • Mandatory exits • Mandatory (“trap”) turn lanes • Deceleration or acceleration lanes
Part 3 – Markings Crosswalk Markings
• New criteria for crosswalk markings • Based on extensive research
• Advance yield line recommended at midblock locations
Part 3 – Markings Roundabouts
• New recommended marking patterns for roundabouts • Single-lane • Multi-lane
• Many new figures depicting nearly all likely situations
Part 3 – Markings Delineators
• 2003 MUTCD: • top of reflector should be at least 4 ft above the
roadway edge • 2009 MUTCD:
• bottom of reflector should be at least 4 ft above the roadway edge
• Can make a big difference in height • Height can affect durability of flexible delineators
• FHWA: OKd statewide exception • 4 ft tall flexible delineators - durable & visible
Next MUTCD • FHWA announced they're moving
forward with new edition of MUTCD • Rulemaking and draft anticipated fall
2014 • 6 month public review & comment • 18 month FHWA review (typ. 10,000+
comments) • new MUTCD edition in late 2016?
Next MUTCD • Possible new content:
• Splitting chapters into sub-chapters • More restrictions on phone numbers on signs • Changing existing Guidance statements to
Standard • Adding acknowledgement signs • new changeable message signs must be full-color • Removing recreational and cultural signs
(prohibited outside of parks) • More restrictions on memorial signs • Greatly expanded content on colored pavement
ADOT Technical Issues Meeting
• Held monthly at ADOT HRDC • Third or fourth Tuesday at 10:00
• ADOT, local agency, consultant staff • Discuss traffic issues and concerns • Large e-mail distribution list • Want to be on the list? Contact me
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