VDOT SPECS UPDATE ATSSA Virginia Chapter Annual Meeting | Fredericksburg Marc Lipschultz, P.E., PTOE | VDOT Traffic Engineering Division October 2, 2019
Agenda • Sheeting Spec Revisions • Sign Spec Revisions • Plastic Inlaid Markers • NCUTCD/MUTCD Pavement Marking Proposals • MASH Migration – Signs and Light Poles • General Specs Reminders 2 Virginia Department of Transportation
Sheeting Spec Revisions | Overview • Supplemental Specifications for Sections 247 and 701 were issued March 6, 2019 • Being inserted into contracts advertised 3/19-12/19 • Will be included in 2020 Spec Book • Major revisions: • Type XI sheeting required for most permanent signs • General reorganization of Sections 247 and 701 • Clarify sheeting requirements for various work zone devices • Note: VDOT also has new policy (IIM-TE-380.1) related to sign lighting 3 Virginia Department of Transportation
Sheeting Spec Revisions | Permanent Signs Background Sheeting Type (1) Fluorescent Yellow shall be used for Color curve warning (W1-series) and RR White Type XI warning (W10-series) signs Red Type XI (2) Brown and blue signs shall use Type XI Yellow (1) Type XI sheeting if mounted overhead on truss or Green Type XI cantilever structure Fluorescent Type XI Yellow-Green (3) Overhead signs shall use Type IX (not XI) Black Type XI if sign lighting is provided Purple Type XI (4) Some “lesser - importance” signs can use Brown (2) Type IV, IX, or XI Type IV (parking restriction, mile marker, Blue (2) Type IV, IX, or XI & ped pushbutton signs; plus signs on shared use paths) 4 Virginia Department of Transportation
Sheeting Spec Revisions | Work Zone Devices Device type ASTM Sheeting Spec Sec Temporary rigid (non-rollup) signs Type IX or XI 247.02(c) Type 3 barricades Type IX or XI 247.02(c) Directional indicator barricades Type IX or XI 247.02(c) STOP/SLOW hand paddles Type IX or XI 247.02(c) Rear panels of TMAs Type IX or XI 247.02(c) Barrier panels atop temp conc. barriers Type IX or XI 247.02(c) Drums and cones Type IV 247.02(d) Back-frame of trailer-mounted devices Grade DOT-C2 247.02(e) (PCMS, AFADs, portable lights, etc.) Conspicuity Tape Gate arms (e.g. AFAD arms) Grade DOT-C2 247.02(e) Conspicuity Tape Rollup signs Type VI 247.02(f) Hand signaling flags 247.02(g) 5 Virginia Department of Transportation
Sheeting Spec Revisions | Other Devices Device type ASTM Sheeting Spec Sec Rigid delineators (ED-2, ED-3, barrier, Type IX or XI 247.02(c) guardrail) Permanent impact attenuators and guardrail Type IX or XI 247.02(c) end treatments Tubular markers and flex post delineators Type IV 247.02(d) Permanent gate arms Grade DOT-C2 247.02(e) Conspicuity Tape 6 Virginia Department of Transportation
Sign Spec Revisions | Overview • Signs < 48” wide use 0.08” aluminum • Overlay panels can use 0.063” aluminum • Rivets protruding from ground-mount signs do not need to be powder-coated • Simplified requirements for applying sheeting to substrate • Overhead signs can be delivered to site > 24 hours in advance • Must be properly propped up • Implement standard label for sign backs 7 Virginia Department of Transportation
Plastic Inlaid Markers | Overview • VDOT will be switching from cast iron SRPMs to PIMs: • All contracts advertised on or after Jan. 1, 2020 • All 2020+ paving schedules • Current status of migration: • Special Provision is complete • PM-series standard drawing is being finalized • IIM policy document is being finalized • Hope to arrange for training for Industry in early 2020 • VDOT is aware of challenges to Industry • PIMs have successful track record in MD/KY/WV/NC 8 Virginia Department of Transportation
Plastic Inlaid Markers | Standard Drawings 9 Virginia Department of Transportation
Plastic Inlaid Markers | Issues • PIMs cannot be used on THMACO or other thin mix contracts • Paving schedules should consider whether existing markers are spaced closer than current VA Supplement standards • Existing SRPMs can be left in place for 2020 LM/SS schedules • As always, existing SRPMs must be protected • Additional policy discussions in the works • Sealing not required for PIM installation in new asphalt • Remove SRPMs in the path of long-term work zone shifts 10 Virginia Department of Transportation
NCUTCD & MUTCD | Retroreflectivity • FHWA’s January 2017 Supplemental Notice of Proposed Amendment (SNPA) proposed: • Agencies shall have methods designed to maintain retro ≥ 50 mcd • Agencies should have ≥ 50 mcd method for 70+ mph roads • Agencies can exempt roads with lighting and/or roads < 6000 ADT • SNPA applied only to longitudinal markings • Unknown if/when FHWA will finalize the retroreflectivity rule • FHWA has committed to NPA for the next MUTCD by Dec. 2019 • Probably will include the proposed retroreflectivity rule • VDOT is considering options for network-wide retroreflectivity assessment and performance thresholds 11 Virginia Department of Transportation
NCUTCD & MUTCD | NCUTCD Ballot Item • NCUTCD’s Markings Committee has submitted for comment proposed language developed by its CAV Task Force: • All lines shall be 6” min width on freeways, ramps, and roads ≥ 45 mph • Dotted lines shall be used for full length of accel and decel lanes • Chevron markings should be used in all exit and entrance ramp gores • Proven safety benefits with 6” edge lines • Some potential issues with ballot item as currently written: • 6” rule would also apply to double yellow lines • No exception to 6” rule for roads with low ADT • Lack of research quantifying benefits of gore chevrons • FHWA will likely push for similar language in new MUTCD 12 Virginia Department of Transportation
MASH Migration | TCDs Impacted by 12/19 Deadline Device Type Implementation Notes Deadline (for now) • Sign supports Contracts let after 4-inch STP posts have been MASH tested • Awaiting results of MASH tests on 2” and 12/31/19 2.5” STP slip -base systems • No known MASH test results for wood posts or I-beam supports Breakaway bases for pedestals and Contracts let after No MASH-tested products currently available light poles 12/31/19 on the market Category 1 WZ devices (cones and Manufactured after Self-certified by manufacturers drums) 12/31/19 Category 2 WZ devices (barricades, Manufactured after No MASH-tested products currently available portable sign supports, etc.) 12/31/19 on the market Category 3 WZ devices (temp barriers, Manufactured after MASH-tested products available impact attenuators, TMAs) 12/31/19 • Prior to MASH, such devices weren’t tested Category 4 WZ devices (trailer- Manufactured after • mounted devices) 12/31/19 No MASH products currently available 13 Virginia Department of Transportation
General Specs/Standards Reminders • Road & Bridge Specifications • Current edition is 2016 Road & Bridge Specifications, including 2019 Supplement • Both the 2016 Spec Book and 2019 Supplement apply to all contracts • Road & Bridge Drawings • 2016 Road & Bridge Drawings are online document • Spec Book sets order of precedence in case of conflict between R&B Specs, R&B Standards, Special Provisions, plan notes, etc. 14 Virginia Department of Transportation
THANKS! Marc.Lipschultz@vdot.Virginia.gov | (804) 371-6022
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