They shall have alternating diagonal orange and white retroreflective stripes sloping downward at an angle of 45 degrees in the direction vehicular traffic is to pass. the center lane. 05 Temporary traffic barriers shall be supplemented with standard delineation, pavement markings, or channelizing devices for improved daytime and nighttime visibility if they are used to channelize vehicular traffic. Support: wide. When rail lengths are less than 36 in., 4 in. A nonstandard JSP, NJSP 21-06 Radar Speed Advisory System, has been created for the RSAS. 01 Utility, maintenance, or construction activities on highways are frequently conducted during nighttime periods when vehicular traffic volumes are lower. Found insideROAD CLOSED , 2B - 43 , 44 Selective Exclusion , 2B - 29-30 size of , 2B - 1 , 2-6 Slow Moving Traffic Lane , 2B - 26 SLOWER ... 2A - 3-5 of temporary traffic control signs , 6F - 2 temporary traffic control zones , 6G - 2 traffic cones ... 03 Except in emergency situations, flagger stations shall be illuminated at night. into the pedestrian facility. Guidance. Fig. Retroreflectorization of cones that are more than 36 inches in height shall be provided by horizontal, circumferential, alternating orange and white retroreflective stripes that are 4 to 6 inches wide. Crash cushions shall be periodically inspected to verify that they have not been hit or damaged. 12 The arrow on a Pedestrian/Bicycle Detour sign may be on the sign face or on a supplemental plaque. Prefabricated concrete curb sections that are interconnected and fixed in place to form a continuous edge. Guidance. Detectable pedestrian edging should be orange, white, or yellow and should match the color of the adjacent channelizing devices or traffic control devices, if any are present. between the bottom rail and the ground surface may be used to facilitate drainage. The adequacy of the floodlight placement and elimination of potential glare should be determined by driving through and observing the floodlighted area from each direction on all approaching roadways after the initial floodlight setup, at night and periodically. Guidance. Option: Road users have difficulties in reading messages displayed in more than two phases on a typical three-line changeable message sign. or less in commercial zone limits in metropolitan areas. All arrow boards shall be finished in non-reflective black. Longitudinal channelizing devices may be hollow and filled with water as a ballast. Standard. 616.6.83 Sequential Flashing Warning Light, below. 31 When portable changeable message signs are used in TTC zones, they should display only TTC messages. Detour signs in TTC incident management situations may have a black legend and border on a fluorescent pink background. Temporary rumble strips should not be placed where routine braking is expected on the rumble strip. 04 If temporary raised pavement markers are used to substitute for solid lines, the markers shall be equally spaced at no greater than N/4, with retroreflective or internally illuminated units at a spacing no greater than N/2. Support: Guide signs used in TTC incident management situations may have a black legend and border on a fluorescent pink background. An exception to this duration is any crosswalk/sidewalk closure, any road closure, Horizontal Arrow, Double-Headed Horizontal Arrow, Chevron, DETOUR (within arrow) or Gore Exit sign. Option. Option. 05 When directional signs and street name signs are used in conjunction with detour routing, these signs may have a black legend and border on an orange background. 08 Where no turns are intended, the stripes should be positioned to slope downward toward the center of the barricade or barricades. Where highway conditions permit, warning signs should be placed in advance of the TTC zone at varying distances depending on roadway type, condition, and posted speed. wide stripes may be used. Signs that have lost significant legibility should be promptly replaced. The One-Direction Large Arrow (W1-6) sign shall be 24 x 12 inches. Half-cycle lengths with a minimum of 2-foot stripes may be used on roadways with severe curvature (see, For temporary situations of 14 days or less, for a two- or three-lane road, no-passing zones may be identified by using DO NOT PASS (R4-1), PASS WITH CARE (R4-2), and NO PASSING ZONE (W14-3) signs (see, If used, the DO NOT PASS, PASS WITH CARE, and NO PASSING ZONE signs should be placed in accordance with, If used, the NO CENTER LINE sign should be placed in accordance with. DIBs are not to be specified in shifting tapers except for the shifting tapers shown on Sheet 4 of Lane Closure, EPG 616.3.2 Temporary Traffic Control Zones (MUTCD 6C.02). Support: 01 Retroreflective or internally illuminated raised pavement markers, or non-retroreflective raised pavement markers supplemented by retroreflective or internally illuminated markers, may be substituted for markings of other types in TTC zones. Since each project is unique, the Core Team should decide when temporary rumble strips should be included in the project. 01 The ONE LANE ROAD (W20-4) sign (see Figure 6F-4) shall be used only in advance of that point where motor vehicle traffic in both directions must use a common single lane (see Section 6C.10). Sorry Temporarily Closed Bilingual Sign NHB-8635 Restrooms. The information in this article describes situations where the provisions for changeable message signs differ from those given in EPG 910.3. An arrow board should be placed on the shoulder of the roadway or, if practical, farther from the traveled lane. Road users have difficulties in reading messages displayed in more than two phases on a typical three-line portable changeable message sign. TTC warning signs shall comply with the Standards for warning signs presented in Part 2 and in FHWA's "Standard Highway Signs and Markings" book (see. 13 Methods of mounting signs other than on posts are illustrated in Figure 6F-2. 09 When channelizing devices have the potential of leading vehicular traffic out of the intended vehicular traffic space as shown in Figure 6H-39, the channelizing devices should be extended a distance in feet of 2.0 times the speed limit in mph beyond the downstream end of the transition area. Unless justified based on engineering judgment, temporary pavement markings should not remain in place for more than 14 daysafter the application of the pavement surface treatment or the construction of the final pavement surface on new roadways or over existing pavements. Standard. The sign message should be brief, legible, and clear. The name and telephone number of the highway agency, contractor, or supplier may be displayed on the non-retroreflective surface of all types of channelizing devices. At the district’s discretion, additional signs within the work zone may be enhanced with flags, however such practice should be infrequent. Short-term pavement marking is not normally removed. Channelizing devices include cones, tubular markers, vertical panels, drums, barricades, and longitudinal channelizing devices. LOW CLEARANCE/WIDTH RESTRICTION XX' XX" XX MILES AHEAD. A barricade is a portable or fixed device having from one to three rails with appropriate markings and is used to control road users by closing, restricting, or delineating all or a portion of the right-of-way. The BLASTING ZONE AHEAD (W22-1) sign (see, The TURN OFF 2-WAY RADIO AND CELL PHONE (W22-2) sign (see. Guidance: Any deviations from this list must be approved by the Public Information and Outreach Unit. When used, the successive flashing of the sequential warning lights shall occur from the upstream end of the merging taper to the downstream end of the merging taper in order to identify the desired vehicle path. Type 3 Barricades should be used to close or partially close a road. All this is in addition to the impact that roadside work can have on the smooth flow of traffic, increasing the ris… Portable changeable message signs shall be equipped with a power source and a battery back-up to provide continuous operation when failure of the primary power source occurs. 07 Type A, B, and C arrow boards shall have solid rectangular appearances. When it is not possible to maintain a minimum width of 60 in. Barricade rails should be supported in a manner that will allow them to be seen by the road user, and in a manner that provides a stable support that is not easily blown over or displaced. Option. Longitudinal rumble strips should not be placed on the shoulder of a roadway that is used by bicyclists unless a minimum clear path of 4 feet is also provided on the shoulder. Sign and warning light mounting methods are not to be specified since this is left to the contractor's preference. The minimum height, measured vertically from the bottom of the sign to the elevation of the near edge of the pavement, of signs installed at the side of the road in rural areas shall be 5 feet (see, The minimum height, measured vertically from the bottom of the sign to the top of the curb, or in the absence of curb, measured vertically from the bottom of the sign to the elevation of the near edge of the traveled way, of signs installed at the side of the road in business, commercial, or residential areas where parking or pedestrian movements are likely to occur, or where the view of the sign might be obstructed, shall be 7 feet (see. The website also contains an “Ask the Experts” section where questions on roadside design issues can be addressed. Movable barriers are capable of being repositioned laterally using a transfer vehicle that travels along the barrier. Each barricade rail shall be 8 to 12 inches wide. Signs mounted on portable supports may be placed within the roadway itself. 07 When used for channelization, temporary traffic barriers should be of a light color for increased visibility. These signs are used at the end of temporary islands or obstructions in the roadway where traffic traveling in the same direction is permitted to pass on either side of the island or obstruction. 09 Barricade rails should be supported in a manner that will allow them to be seen by the road user, and in a manner that provides a stable support that is not easily blown over or displaced. 16 Barricades may be used alone or in groups to mark a specific condition or they may be used in a series for channelizing road users. Guidance: 05 Where channelizing devices are used to channelize pedestrians, there shall be continuous detectable bottom and top surfaces to be detectable to users of long canes. Standard. See EPG 626 Rumble Strips for milled rumble strip guidance. to 6 in. 15 The minimum element on-time shall be 50 percent for the flashing mode, with equal intervals of 25 percent for each sequential phase. When used to supplement channelization, the maximum spacing for warning lights should be identical to the channelizing device spacing requirements. Short-term pavement marking tape is used in locations where the marking will be in place no more than two weeks. 09 If used, the truck-mounted attenuator should be used in accordance with the manufacturer's specifications. When permanent directional signs or permanent street name signs are used in conjunction with detour signing, they may have a white legend on a green background. Guidance: 04 Detectable pedestrian edging should be orange, white, or yellow and should match the color of the adjacent channelizing devices or traffic control devices, if any are present. Guidance. Option: Also, State Departments of Transportation and local agencies might have expanded the NCHRP Report 350 crashworthy criteria to apply to certain other roadside appurtenances. When used for channelization, temporary traffic barriers should be of a light color for increased visibility. Standard: 10 The dimensions of signs and plaques shown in Table 6F-1 may be increased wherever necessary for greater legibility or emphasis. Special (NARROW LANES). 03 Existing pavement markings shall be maintained in all long-term stationary (see Section 6G.02) TTC zones in accordance with Chapters 3A and 3B, except as otherwise provided for temporary pavement markings in Section 6F.78. Except as otherwise provided in this Section, all temporary pavement markings for no-passing zones shall comply with the requirements of EPG 620.1 General and EPG 620.2 Pavement and Curb Markings. Guidance: Option. For long-term stationary operations, direction indicator barricades (DIBs) should be used instead of trim-lime channelizers in merging tapers because they provide direction and have a larger target area for the motorists. The components of a portable changeable message sign should include: a message sign, control systems, a power source, and mounting and transporting equipment. CMSs shall not be used to replace or repeat static sign messages. The four primary functions of temporary traffic barriers are: Temporary traffic barriers may be used to separate two-way vehicular traffic. Temporary raised pavement markers may be used to substitute for broken 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. Most of our Orange Road Signs are printed on .080" Diamond Grade Work Zone Reflective aluminum that is 10 times brighter than our standard Engineering Grade sheeting. Where any part of the roadway is obstructed or closed by work activities or incidents, advance warning signs should be installed to alert road users well in advance of these obstructions or restrictions. Support: If a supplemental sign is mounted below another sign, the mounting height of the supplemental sign may be one ft. less than the heights specified. An arrow board shall be a sign with a matrix of elements capable of either flashing or sequential displays. 11 More specific information on the use of temporary traffic barriers is contained in Chapters 8 and 9 of AASHTO's "Roadside Design Guide" (see Section 1A.11). The spacing between cones, tubular markers, vertical panels, drums, and barricades should not exceed a distance in feet equal to 1.0 times the speed limit in mph when used for taper channelization, and a distance in feet equal to 2.0 times the speed limit in mph when used for tangent channelization. Whether you need temporary speed limit signs for road works or a custom permanent sign we have what you need. 616.8.37 - MT. In combination with a warning sign, a Supplementary Distance (W7-3aP) plaque (see. For additional information see 616.6.17.2 Signs in Narrow Medians. A portable changeable message sign may be used to simulate an arrow board display. The value of N for a broken or dotted line shall equal the length of one line segment plus one gap. If used, the NO CENTER LINE sign should be placed in accordance with EPG 616.6.47. Temporary rumble strips shall be used in accordance with this guidance. Fig. Particular attention should be given to maintaining the channelizing devices to keep them clean, visible, and properly positioned at all times. In emergencies with coordination with district work zone coordinators, available warning signs having yellow backgrounds may be used if signs with orange or fluorescent pink backgrounds are not at hand. 616.6.2 General Characteristics of Signs (MUTCD 6F.02), 616.6.2.2 Flags and Advance Warning Rail System on Signs, 616.6.5 Regulatory Sign Authority (MUTCD 6F.05), 616.6.6 Regulatory Sign Design (MUTCD 6F.06), 616.6.7 Regulatory Sign Applications (MUTCD 6F.07), 616.6.8 ROAD CLOSED Sign (R11-2) (MUTCD 6F.08), 616.6.9 Local Traffic Only Signs (R11-3a, R11-4) (MUTCD 6F.09), 616.6.10 Weight Limit Signs (R12-1, R12-2, R12-5) (MUTCD 6F.10), 616.6.11 STAY IN LANE Sign (R4-9) (MUTCD 6F.11), 616.6.12 Work Zone and Higher Fines Signs and Plaques (MUTCD 6F.12), 616.6.13 PEDESTRIAN CROSSWALK Sign (R9-8) (MUTCD 6F.13), 616.6.14 SIDEWALK CLOSED Signs (R9-9, R9-10, R9-11, R9-11a) (MUTCD 6F.14), 616.6.15 Special Regulatory Signs (MUTCD 6F.15), 616.6.16 Warning Sign Function, Design and Application (MUTCD 6F.16), 616.6.17 Position of Advance Warning Signs (MUTCD 6F.17), 616.6.17.1 Signing for One-Lane, Two-Way Resurfacing Operations, 616.6.18 ROAD/BRIDGE/RAMP WORK Sign (WO20-1) (MUTCD 6F.18), 616.6.19 DETOUR Sign (WO20-2) and Detour Route Assembly (MUTCD 6F.19), 616.6.20 ROAD (STREET) CLOSED Sign (WO20-3) (MUTCD 6F.20), 616.6.21 ONE LANE ROAD Sign (WO20-4) (MUTCD 6F.21), 616.6.22 Lane(s) Closed Signs (WO20-5, WO20-5a) (MUTCD 6F.22), 616.6.23 CENTER LANE CLOSED AHEAD Sign (W9-3) (MUTCD 6F.23), 616.6.24 Lane Ends Sign (Special Signs RIGHT LANE CLOSED (WO20-6a) and MERGE (Arrow)) (MUTCD 6F.24), 616.6.25 ON RAMP Plaque (W13-4P) (MUTCD 6F.25), 616.6.26 ROAD/BRIDGE/RAMP NARROWS Sign (WO5-1) (MUTCD 6F.26), 616.6.27 SLOW TRAFFIC AHEAD Sign (W23-1) (MUTCD 6F.27), 616.6.28 EXIT GORE, EXIT OPEN and EXIT CLOSED Signs (EO5-1, EO5-2, EO5-2a) (MUTCD 6F.28 and 2E.37), 616.6.29 EXIT ONLY Sign (E5-3) (MUTCD 6F.29), 616.6.30 NEW TRAFFIC PATTERN AHEAD Sign (W23-2) (MUTCD 6F.30), 616.6.31 Flagger (WO20-7) and BE PREPARD TO STOP (WO3-4) signs (MUTCD 6F.31), 616.6.32 Two-Way Traffic Sign (WO6-3) (MUTCD 6F.32), 616.6.33 Workers Signs (W21-1, W21-1a) (MUTCD 6F.33), 616.6.34 FRESH OIL Sign (WO21-2), LOOSE GRAVEL (WO8-7) or FRESH OIL/LOOSE GRAVEL Sign (Special) (MUTCD 6F.34), 616.6.35 ROAD MACHINERY AHEAD Sign (W21-3) (MUTCD 6F.35), 616.6.36 Motorized Traffic Signs: TRUCK CROSSING (WO8-6) and TRUCK ENTRANCE (SPECIAL WO8-6c) (MUTCD 6F.36), 616.6.37 Shoulder Work Signs (WO21-5b) (MUTCD 6F.37), 616.6.38 SURVEY CREW AHEAD Sign (WO21-6) (MUTCD 6F.38), 616.6.39 UTILITY WORK Sign (WO21-7) (MUTCD 6F.39), 616.6.40 Signs for Blasting Areas (MUTCD 6F.40), 616.6.41 BLASTING ZONE AHEAD Sign (W22-1) (MUTCD 6F.41), 616.6.42 TURN OFF 2-WAY RADIO AND CELL PHONE Sign (W22-2) (MUTCD 6F.42), 616.6.43 END BLASTING ZONE Sign (W22-3) (MUTCD 6F.43), 616.6.44 Shoulder Signs and Plaque (WO8-4, WO8-17 and WO8-17P) (MUTCD 6F.44), 616.6.45 UNEVEN LANES Sign (WO8-11) (MUTCD 6F.45), 616.6.46 STEEL PLATE AHEAD Sign (WO8-24) (MUTCD 6F.46), 616.6.47 NO CENTER LINE Sign (WO8-12) (MUTCD 6F.47), 616.6.48 Turn, Curve, Reverse Curve, Double and Triple Arrow Reverse Curve and ALL LANE Signs (WO1-1, 1-2, 1-3, 1-4 and WO24-1cP Series) (MUTCD 6F.48), 616.6.49 Double Reverse Curve, Double and Triple Arrow Double Reverse and ALL LANES Signs (WO24-1 Series) (MUTCD 6F.49), 616.6.50 Other Warning Signs (MUTCD 6F.50), 616.6.52 Advisory Speed Plaque (WO13-1P) (MUTCD 6F.52), 616.6.53 NEXT XX MILES Plaque (WO7-3aP) (MUTCD 6F.53), 616.6.54 Motorcycle Plaque (WO8-15P) (MUTCD6F.54), 616.6.56 ROAD WORK NEXT XX MILES Sign (GO20-1) (MUTCD 6F.56), 616.6.57 END ROAD WORK Sign (GO20-2) (MUTCD 6F.57), 616.6.58 PILOT CAR FOLLOW ME (GO20-4) and PILOT CAR IN USE WAIT & FOLLOW (GO20-4a) (MUTCD 6F.58), 616.6.59 Detour Signs (MO4-8, MO4-8a, MO4-8b, MO4-9, MO4-9a, MO4-9b, MO4-9c, and MO4-10) (MUTCD 6F.59), 616.6.60 Portable Changeable Message Signs (MUTCD 6F.60), 616.6.62 High-Level Warning Devices (Flag Trees) (MUTCD 6F.62), 616.6.63 Channelizing Devices (MUTCD 6F.63), 616.6.64 Cones and Trim-lines (MUTCD 6F.64), 616.6.68 Type 1 or 3 Barricades (MUTCD 6F.68), 616.6.68.1 Design and Construction Details, 616.6.69 Direction Indicator Barricades (MUTCD 6F.69), 616.6.70 Temporary Traffic Barriers as Channelizing Devices (MUTCD 6F.70), 616.6.71 Longitudinal Channelizing Devices (MUTCD 6F.71), 616.6.72 Temporary Lane Separators (MUTCD 6F.72), 616.6.73 Other Channelizing Devices (MUTCD 6F.73), 616.6.74 Detectable Edging for Pedestrians (MUTCD 6F.74), 616.6.75 Temporary Raised Islands (MUTCD 6F.75), 616.6.76 Opposing Traffic Lane Divider and Sign (W6-4) (MUTCD 6F.76), 616.6.78 Temporary Markings (MUTCD 6F.78), 616.6.79 Temporary Raised Pavement Markers (MUTCD 6F.79), Fig. Stationary crash cushions shall be designed for the specific application intended. The sign shall be at least 24 x 24 inches in size when used with a sign that is 36 x 36 inches or larger. 01 If a TTC zone requires regulatory measures different from those existing, the existing permanent regulatory devices shall be removed or covered and superseded by the appropriate temporary regulatory signs. Arrow boards shall meet the minimum size, legibility distance, number of elements, and other specifications. Standard. Where more than three lanes are being shifted, the Reverse Curve (or Turn) sign may be rectangular. Only registered users can write reviews. An appropriate warning sign may be mounted below the flags. If more than one portable changeable message sign is simultaneously legible to road users, then only one of the signs should display a sequential message at any given time. Option: 01 The ROAD (STREET) CLOSED (R11-2) sign (see Figure 6F-3) should be used when the roadway is closed to all road users except contractors' equipment or officially authorized vehicles. Detour signs in TTC incident management situations may have a black legend and border on a fluorescent pink background. Retroreflectorization of cones that are 28 to 36 inches in height shall be provided by a 6-inch wide white band located 3 to 4 inches from the top of the cone and an additional 4-inch wide white band located approximately 2 inches below the 6-inch band. These signs are to be used on divided highways. These protective vehicles are normally equipped with flashing arrows, changeable message signs, and/or high-intensity rotating, flashing, oscillating or strobe lights located properly in advance of the workers and/or equipment that they are protecting. Barricades used on freeways, expressways, and other high-speed roadways shall have a minimum of 270 square inches of retroreflective area facing road users. 02 Where the height of the retroreflective material on the vertical panel is 36 inches or more, a stripe width of 6 inches shall be used. Temporary lighting is provided on the signal poles (silhouette discernment lighting as described in EPG 901 Lighting). 02 FHWA policy requires that all roadside appurtenances such as traffic barriers, barrier terminals and crash cushions, bridge railings, sign and light pole supports, and work zone hardware used on the National Highway System meet the crashworthy performance criteria contained in the National Cooperative Highway Research Program (NCHRP) Report 350, "Recommended Procedures for the Safety Performance Evaluation of Highway Features." Guidance. The SHOULDER DROP OFF (WO8-17) sign should be used when an unprotected shoulder drop-off, adjacent to the travel lane, is deeper than 2 in. A temporary raised island may be used to separate vehicular traffic flows in two-lane, two-way operations on roadways having a vehicular traffic volume range of 4,000 to 15,000 average daily traffic (ADT) and on freeways having a vehicular traffic volume range of 22,000 ADT to 60,000 ADT. Standard: Where distances are not displayed on warning signs as part of the message, a supplemental plaque with the distance legend may be mounted immediately below the sign on the same support. The 48 in. Where barricades extend entirely across a roadway, the stripes should slope downward in the direction toward which road users must turn. When directional signs and street name signs are used in conjunction with detour routing, these signs may have a black legend and border on an orange background. Guidance: Large construction projects are sometimes operated on a double-shift basis requiring night work (see EPG 616.6.19). Guidance: Advance warning signs may be used by themselves or with other advance warning signs. EPG 903.5.7 SPEED LIMIT contains information regarding the design of portable changeable message signs that are used to display speed limits that change based on operational conditions, or are used to display the speed at which approaching drivers are traveling.

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