00222.11 171 Section 00222 - Temporary Traffic Control Signs
Description
00222.00Scope - In addition to the requirements of Section 00221, this Work consists of furnishing,
installing, moving, operating, maintaining, inspecting, and removing temporary signs.
Materials
00222.10Temporary Signs - Furnish temporary signs meeting the requirements of the "Acceptable"
category shown in the ATSSA Quality Guidelines for Temporary Traffic Control Devices and Features handbook, available from the ATSSA website. Use M aterials and fabricate signs conforming to
unless otherwise specified or ordered. Double-face signs are not allowed except for the flagger "STOP/SLOW" paddle. For diamond shaped warning signs, use 48 by 48 inch signs unless otherwise shown or specified.
sheeting on temporary warning signs and ASTM Type III or IV sheeting from the QPL for all other fluorescent colored retroreflective sheeting on temporary signs, unless otherwise indicated in this Section or in the TCP. Fabricate these signs on one of the following Materials:
New sheet aluminum sign blanks. New extruded aluminum panels. Used sheet aluminums ign blanks that are without bends, tears, holes, or dents and that have been cleaned to bare metal. 3/4 inch high-density overlay plywood. 3/4 inch medium -density overlay plywood.
long as they can be locked when not in use so the sign message is not visible to any traffic.
00222.11Sign Supports :
Drawings and according to 02110.40, except posts may be untreated.
following:
Free standing. Capable of supporting signs in vehicle- caused turbulence and in winds common to the area where they are used. If additional ballast is required to maintain the signs in an upright position, use sandbags to anchor the sign suppor t legs. Place a sandbag filled with loose sand (approximately 25 pounds) across the bottom of each leg as needed.
following:
00222.12 172 Conform to the Standard Drawings. Attach securely to the top of the concrete barrier. Support a maximum 12 square feet of total sign area.
according to 02110.40, except posts may be untreated.
sign supports from the QPL and as shown on the Standard Drawings. For PSST sign supports mounted on portland cement concrete surfaces, use surface mounted post anchors according to the manufacturer's recommendations.
00222.12Sign Covers :
From the QPL or made from one of the following M aterials: • One-piece plywood. • Geotextile fabric. Large enough to completely cover the sign and attached rider signs. Easy to attach to and remove from the sign without damaging the sign face. Black and non-reflective. Opaque to prevent message visibility under day and nighttime conditions.
00222.13Sign Flags - Sign flags shall be:
Fluorescent red-orange. Square 16 by 16 inches or larger. Made from an acc eptable tightly woven fabric or plastic sheeting.
00222.14Sign Flag Boards - Use sign flag boards as shown on the Standard Drawings
00222.15Temporary Electrical Signs - Furnish electrical signs meeting the following requirements:
List, or as approved.
Construction
00222.40Temporary Signs - Once temporary signs have been accepted and paid for on the Project,
do not remove them from the Project, until directed by the Engineer. For all temporary warning signs use fluorescent orange retroreflective sheeting background.
00222.40 173 Install all temporary signing according to the Plans, S ection 00940, the MUTCD, the Sign Policy and Guidelines for the State Highway System , FHWA Standard Highway Sign manual and the following:
directed.
directed and according to the "Temporary Speed Zone Order" signed by the State Traffic Engineer.
When regulatory speed zone signs are used , cover conflicting existing regulatory speed zone signs with sign covers according to Section 00941. Cover or remove temporary regulatory speed zone signs and restore the original speed zone signs according to the "Temporary Speed Zone Order" and when di rected.
If an existing regulatory speed zone sign displaying the original speed is 1,000 feet or less beyond the limits of the temporary speed zone, additional temporary regulatory speed zone signs displaying the original speed are not required.
hours. Place roll -up signs within the active Work Area on portable roll -up sign supports. Remove all inappropriate roll -up signs at the end of each shift.
consistent with the W ork Zone. Cover all inconsistent temporary signing until the sign messages are applicable to the Work that is beginning. When signage is no longer required for staging or shift Work, remove all temporary signs, sign flag boards, supports, sign covers, and ballast associated with the staging or shift Work.
When temporary sign messages conflict with Work Zone conditions, traffic patterns, or other staging configurations, but signs are needed later in Project, do the following:
Turn or cover the signs so the message is not visible to any traffic. Remove or cover sign flag boards. When covering signs and sign flag boards, use covers meeting the requirements of 00222.12.
When it is determined that only minor Work remains on the Project and the Work Area does not encroach on Traffic Lanes or Shoulders, do the following:
Remove all temporary signs, including the advance construction and Project identification signs. Remove all sign flag boards and ballasts. Use roll up signs on portable sign supports for minor or short duration Work.
signing, Work Zone conditions, traffic patterns or other staging configurations, do the following:
Turn or cover the signs so the message is not visible to any traffic. When covering signs, use sign covers meeting the requirements of 00222.12(b).
00222.41 174 When Work Zone conditions change an d permanent sign messages no longer conflict with temporary signing, uncover permanent signs. Install or uncover appropriate permanent signing as required, before changing traffic control staging.
Install a "TRUCKS" (W11 -10) sign with an 18 inch "500 FEET" (W16- 4P) plaque, approximately 500 feet before each point of access of all noncommercial stockpile sites, W ork Zone staging area, material sources, waste areas, and plant set -up areas to a public Roadway. When a through road intersects the W ork Zone, place a "ROAD WORK AHE AD" (W20 -1) sign in advance of the intersection at sign spacing "A" from the "TCD Spacing Table" shown on the Standard Drawings, or as shown in th e TCP. These signs do not require sign flag boards, unless otherwise directed. When a cold planed Pavement surface is used by traffic, install the following temporary signs: • "BUMP" (W8 -1) sign approximately 100 feet in advance of the transverse paving edg e. • "GROOVED PAVEMENT" (W8 -15) sign with a 24 inch "Motorcycle" (W8-15P) rider in advance of the “BUMP” sign at sign spacing "A" from the "TCD Spacing Table" shown on the Standard Drawings, or as shown in the TCP.
Face signs toward incoming traffic and ins tall them before opening the cold planed surface area to Public Traffic. Protect exposed transverse and longitudinal cold planed Pavement edges according to 00221.07(c).
00222.41Sign Supports :
signs on wood sign posts as shown.
When sign posts are installed in Rock, a shorter post may be used if the post is installed in a buried concrete footing at least 12 inches in diam eter and 2 feet deep.
When signs are needed at a single location for no more than 48 consecutive hours. Positioned so the lowest point of the sign is at least 1 foot above the Roadways urface. With roll-up signs. With ballast to prevent tipping of the signs in high wind.
Turn, cover, or remove signs at the end of each work shift when the condition is no longer in effect.
Lowest point of the sign is at least 7 feet above the Roadway surface. Temporarys ign and post are held securely to temporary barrier by an approved device. Sign can be turned and locked in a position parallel to the flow of traffic when not in use.
When signs are needed at a single location for more than 48 consecutive hours. When not practicable to post mount due to location or when Utility conflicts exist. 00222.45 175 Provide reflective sheeting on TSS posts as shown in the Standard Drawings. Do not tip over any TSS that is exposed to traffic, unless approved by the Engineer or the TSS is protected from traffic by a barrier system. Position TSS as shown on the Standard Drawings or in the TCP. When not in use, locate TSS as far from Public Traffic as practicable and turn away from traffic, or cover the sign. Do not cover reflective sheeting on the TSS posts.
may be used as a substitute for wood sign posts. Install perforated steel square tube sign supports as shown on the Standard Drawings. For PSST sign supports mounted on portland cement concrete surfaces, use surface mounted post anc hors according to the manufacturer's recommendations.
signs as shown on the Standard Drawings or other mounting methods approved by the Engineer.
00222.44Sign Flag Boards - Install two sign flag boards, as shown or specified
00222.45Temporary Electrical Signs - Provide and install temporary electrical signs as follows:
To indicate a lane closure only. Use one sequential arrow sign for each lane being closed. Install where the sign is visible from 1/2 mile minimum. Mount at a he ight of 7 feet from bottom of sign to ground. Do not use on 2- Lane, 2-Way Roadway. For Shoulder Work use caution mode only. Provide a solar/battery power source.
Changeable Message Sign Handbook and as follows:
Program concise accurate messages according to the Oregon Portable Changeable Message Sign Handbook . Install beyond the outside Shoulder, behind existing barrier or guardrail, as shown in the TCP, or as directed when conditions do not allow the PCMS to be located beyond the Traffic Lane. Install the PCMS device where it can be seen from 1/2 mile minimum. The PCMS message should be legible from 800 feet in the daytime and 600 feet at night. Mount so that the bottom of the sign is 7 feet above the ground. Program so that the entire message is displayed within 8 seconds. Use a maximum of two panels to display an entire message . Separate two PCMS used in sequence by 1,000 feet minimum. Messages shall not scroll horizontally or vertically across the face of the sign. When the PCMS is not being used to display any messages for more than 5 consecutive Calendar Days, remove the PCMS from the Roadway and locate the device at least 30 feet from the edge of the nearest Traffic Lane, place behind a barrier system, or as directed. Provide a solar/battery power source. Obtain approval from the Engineer before displaying or altering messages. 00222.65 176 Type B, Mini PCMS use is limited to locations where the preconstruction posted speed is 40 mph or less.
Place and delineate according to the Flagger Station Lighting Delineation detail as shown on the Standard Drawings, or as directed. Operate radar speed modes and set speed thresholds as directed and as follows: • Use an over speed threshold equal to the posted speed on the radar speed trailer. • Use a blackout speed threshold of 85 mph, which does not allow the radar speed trailer to display a speed or message when the measured speed exceeds 85 mph. Program to display the over speed message as follows, or as approved by the Engineer: SLOW DOWN Ensure that the over speed message is displayed when the measured vehicle speeds exceed the posted speed mounted on the radar speed trailer but do not exceed the blackout speed threshold. Provide speed and event logging data to the Engineer at the completion of the Proj ect, in a format compatible with Microsoft Excel. When not actively displaying speeds, remove from the Roadway and locate the radar speed trailer at least 30 feet from the nearest open Traffic Lane, behind a barrier system, or as directed.
Maintenance
00222.65Portable Electrical Signs - Maintain and use the required PCMS, radar speed trailers,
and sequential arrow signs according to the manufacturer's recommendations, TCP, and as required. Do not display or alter any sign message before it is approved. While PCMS, radar speed trailers, and sequential arrow signs are in use, have repair Equipment and parts on the Project Site, as recommended by the manufacturer. When directed, repair or replace sequential arrow signs, radar speed signs, and PCMS that are damaged or destroyed before continuing Work that requires use of the signs.
Measuremen t
00222.80Measurement - The quantities of temporary signs will be measured according to the
following. The quantities for Work Zone Traffic Control Measures will be limited to the following, unless otherwise specified:
The initial installation of quantities necessary to complete the Project based on the Contract Schedule of Items. The initial installation of additional TCD and TCM that the Engineer and Contractor agree are necessary to ensure a safe Work Zone. Temporary signing and temporary electrical signs damaged by Public Traffic and replaced or repaired by the Contractor will not be measured.
00222.91 177 (a) Area Basis - Temporary signs will be measured on the area basis, upon delivery to the Project. The quantities will be limited to those in the approved TCP including speed zone signage. The sign area will be the nominal area determined by multiplying the width times the length. No deductions will be made for corners or irregular shapes. Route markers on separate substrate riders and other signs fastened to the face of larger signs will be measured as separate signs.
Sign covers, sign flags, sign flag boards, posts and other supports will not be measured.
are initially installed on the Project.
Payment
00222.90Payment - The accepted quantities of Work performed under this Section will be paid for
at the Contract unit price, per unit of measurement, for the following items:
Pay Item Unit of Measurement
Items (b) and (c) include furnishing, mounting, operating, moving, and removing signs and supports, regardless of whether the signs are mounted on supports, trailers, vehicles, or Equipment.
Item (d) includes furnishing, operating, moving, maintaining, and removing the radar speed trailer.
No separate or additional payment will be made for sign flags, sign flag boards, posts and other supports, sign covers, or removing and replacing damaged signs.
Payment will be payment in full for furnishing, installing, moving, operating, maintaining, inspecting, and removing the Materials and TCD, and for furnishing all Equipment, labor, and Incidentals necessary to complete the Work as specified, except as covered in 00221.90(b).
00222.91Payment, Lump Sum or Incidental Basis - When the Contract indicates payment for
Work performed under 00221.98 Payment, Method “B” - Lump Sum Basis or 00221.99 Payment, Method “C” - Incidental Basis , no separate or additional payment will be made for Work performed under this Section. Payment will be included in payment according to 00221.98 or 00221.99.