Guidance on when all-way stop control is appropriate is discussed in the UIIG’s Selection of Appropriate Control. Traffic Control Devices (TCD) include all road signs, highway markings, electronic traffic signals, railroad crossings, and road-way construction zone areas. Guidelines for crosswalk installation developed by Zegeer et al. Starting at $47.50. However, when applied on the uncontrolled road, consideration should be given for the optional use of complimentary regulatory or warning signs—Stop Here For (Yield Here To) Pedestrians (R1-5, R1-5a, R1-5b, or R1-5c), In-Street Pedestrian Crossing (R1-6or R1-6a), or Overhead Pedestrian Crossing (R1-9 or R1-9a) sign. The Yield Here to Pedestrians (R1-5 or R1-5a) sign and the Stop Here for Pedestrians (R1-5b and R1-5c) sign are intended for use on the uncontrolled multilane approaches to indicate where motorists are to yield or stop even if the yield or stop lines are not used. Source: Lee Engineering, LLC. See Traffic Circle Signs in our catalog on page 21. The MUTCD provides a table of common sign colors with a section for changeable message signs. 2B-1 Support The use of educational plaques to supplement symbol signs is described in Section 2A.12. On an intersection approach controlled by a YIELD sign (R1-2), the motorist should slow down and be prepared to stop to concede the right-of-way to other users near or within the intersection. Additional requirements and guidance related to FHWA’s interim approval of RRFBs can be found on the MUTCD website. Doubling-up of a standard sign by adding a second identical sign on the left-hand side of the roadway, as depicted below. Example of a Rectangular Rapid Flashing Beacon. If the side roads are not opposite of each other, the Offset Side Roads (W2-7) symbol sign should be used instead of the Cross Road symbol sign. The Division of Traffic Engineering will continuously update the Sign Catalog as revisions are made. When multiple signal faces are used, they are to be flashed simultaneously when placed, The border of a regulatory or warning sign may be enhanced through light emitting diode (LED) units, as detailed in. Additional Subcategories. FHWA's MUTCD 2009 Edition, including Revisions 1 & 2 as amended for use in California. Several word, symbol, and arrow markings that may be used to supplement signs and/or to provide additional emphasis for regulatory or warning messages at unsignalized intersections are described below (see MUTCD Section 3B.20): Example of STOP AHEAD pavement markings. If the side roads on the same side are closely spaced, the Double Side Roads (W2-8) symbol sign should be used instead of the Side Road symbol sign. Addtional equipment may also include an articulated Part 5 -Traffic Control Devices for Low-Volume Roads, Part 7 – Traffic Control For School Areas, Part 8 – Traffic Control For Railroad and Light Rail Transit Grade Crossings, Part 9 – Traffic Control For Bicycle Facilities, Adoption Status of the 2009 National MUTCD by States, Chapter 2G-2H – Preferential and Managed Lane Signs. The EXCEPT RIGHT TURN (R1-10P) plaque may be installed beneath the STOP sign if the intersection geometry and traffic volumes are conducive to right-turning traffic safely entering the intersection without stopping. Most regulatory signs are rectangular, with the longer Standard: 01 Except as provided in Section 2A.11, the sizes for regulatory signs shall be as shown in Table 2B-1. Linked sign layout files in PDF format provided courtesy of FHWA's MUTCD website Unauthorized use of text, images, and other content is strictly prohibited. For more information about “What is the MUTCD?” click here. Limited visibility to or a perceived lack of awareness of the intersection and a history of crashes at an intersection would be justifications for the use of Intersection Warning signs. Date: 18 October 2013: Source: Author: Fry1989 eh? Symbols provide instant communication with roadway users, as well as overcoming language barriers. See MUTCD Roundabout Signs and Plaque Information for requirements. The MUTCD (Manual on Uniform Traffic Control Devices) from the Federal Highway Administration (FHWA) is adopted by US law as the set of requirements for traffic signs, … R1-2 YIELD Sign. Our goal is to create a website that describes the MUTCD regulations in a way that will be easy to find and easy to understand. These signs are typically orange background ones used for temporary situations. Source: VHB. The 2009 MUTCD shall be used to determine the appropriate signs. Source: VHB. It consists of one or more signal sections of a standard traffic signal face with a circular red signal indication in each signal section mounted 12 to 24 inches above the STOP sign. Add red or orange flags to the standard regulatory or warning sign placed at 45 degrees to the vertical and made of either cloth or retroreflective material. The Cross Road (W2-1) symbol, Side Road (W2-2 and W2-3) symbol, and Y-Symbol (W2-5) signs may be used in advance of the intersection to indicate the presence of an intersection and the possibility of turning or entering traffic. Marked pedestrian crosswalks may be used to delineate preferred pedestrian paths across roadways under the following conditions: At locations with STOP signs to direct pedestrians to those crossing locations and to prevent vehicular traffic from blocking the pedestrian path when stopping for a STOP sign. For a more detailed article about the MUTCD click here. Authors & Acknowledgement   |   Legal Notices   |   Feedback/Contact, http://mutcd.fhwa.dot.gov/resources/state_info/index.htm. It does this by providing standards, guidance, options, and support information as defined below: Most states have, at some level, developed their own sets of standards for traffic control devices, but these must substantially conform to the Federal MUTCD. Safety Evaluation of STOP AHEAD Pavement Markings. 620.2.1 Yellow Centerline Pavement Markings and Warrants (MUTCD Section 3B.01) Standard. Standard STOP Sign (R1-1) Starting at $17.95. If a traffic control signal is not justified under the signal warrants and if gaps in traffic are not adequate to permit pedestrians to cross, or if the speeds of vehicles approaching on the major street are too high to permit pedestrians to cross, or if pedestrian delay is excessive, on the basis of an engineering study that considers major-street volumes, speeds, widths, and gaps in conjunction with pedestrian volumes, walking speeds, and delay. YIELD signs can be used to designate the right-of-way at standard unsignalized intersections and for roundabouts. Regulatory signs shall be used to inform road users of selected traffic laws or regulations and indicate the applicability of the legal requirements. The California MUTCD Sign Charts contain commonly used signs in California, and is not meant to be used as a comprehensive or stand-alone design tool. An option allowed by the MUTCD is the use of a fluorescent yellow-green background color for non-motorized signs or plaque, including pedestrian signs (W11-2, W11-9, and W11-15) and bicycle or trail crossing signs (W11-1, W11-15 or W11-15P). The MUTCD includes several types of pavement markings placed on roadways to convey regulations, guidance, or warnings to the road user. The Sign Catalog is for informational purposes only. 2014 Edition (Including Revision 1) State of California California State Transportation Agency Department of Transportation. Pedestrian Traffic Control Devices (including signs, markings and beacons). One Street Name sign is typically sufficient for smaller intersections, but multiple Street Name signs—on opposite corners (diagonally)—may be desirable for larger intersections. Finding the specific information you need can be difficult, time-consuming and frustrating. In general, traffic signs are classified in one of three ways: Signs of each type that are relevant to unsignalized intersections are presented below. MUTCD Traffic Signs. Official Regulatory No Parking Sign -meet code with a quality sign ; made of .080 Aluminum, Guaranteed not to rust, Traffic signs in the US increasingly use symbols rather than words to convey their message. On a roadway with four or more lanes without a raised median or crossing island that has (or will soon have) an average daily traffic (ADT) volume of 12,000 vehicles or greater. If used, flashing circular red signal indications are applied to all approaches having a STOP sign; if not an all-way stop, flashing circular yellow signal indications are applied to the approaches (usually along the major street) that are not under stop control. The question of when to apply crosswalk markings at an unsignalized intersection is difficult to answer directly, as practices vary widely across the country. Yield lines (see MUTCD Figure 3B-16) consist of a row of solid white isosceles triangles pointing toward approaching vehicles extending across approach lanes to indicate the point at which the vehicles are required to yield. Example of a NEW plaque above a STOP sign. The MUTCD does not require these warning signs and does not provide any guidance as to when they should be considered. MUTCD Regulation: Section 2C.46 Intersection Warning Signs (W2-1 through W2-8) Although the MUTCD states that “The pedestrian hybrid beacon should be installed at least 100 feet from side streets or driveways that are controlled by STOP or YIELD signs,” it is not a “shall” condition, and the National Committee on Uniform Traffic Control Devices voted to delete that guidance in the next MUTCD. Sources: WSDOT (left) and VHB (right). First Sign stocks 1000s of standard MUTCD traffic signs, including stop signs, yield, Do not enter, parking signs… Section 2B.03 Size of Regulatory Signs. As with stop lines, yield lines are not required by the MUTCD but may be used to indicate the appropriate yield point in association with a YIELD sign or a Yield Here to Pedestrians (R1-5, R1-5a) sign. Groups organized to post signs for major roadways often overlapping with the efforts of other groups. The map below was developed by the FHWA’s MUTCD Team and summarizes information on which states have adopted (1) the national MUTCD, (2) the national MUTCD along with a state-specific supplement, or (3) a state-specific MUTCD. This is consistent For example, if the posted or 85th percentile speed is 35 mph, then the motorist should be able to see the STOP or YIELD sign at least 250 feet in advance of the STOP or YIELD sign; if such sight distance is not available, then the Stop Ahead or Yield Ahead sign should be placed 100 feet in advance of the intersection. The use of these lines is usually dictated by the road section itself rather than just the intersection. The sign details located on ProjectWise are to be used for sign fabrication. The MUTCD specifies regulatory signs that apply to unsignalized pedestrian crosswalks. The MUTCD’s recommended minimum letter heights are shown in the table below. Source: Lee Engineering, LLC. Subcategories. U.S. map showing states’ adoption of MUTCD. STOP AHEAD—There is no guidance in the MUTCD on when this word message would be appropriate to use, but one. The Advance Street Name (W16-8 or W16-8aP) plaque may be used with any Intersection Warning sign or Advance Traffic Control sign. It is the definitive authority for traffic signs and pavement markings. For a major street where the posted or statutory speed limit or the 85th percentile speed is 35 mph or less, if the engineering study finds that the plotted point representing the vehicles per hour on the major street (total of both approaches) and the corresponding total of all pedestrians crossing the major street for one hour (i.e., any four consecutive 15-minute periods) of an average day falls above the applicable curve in, For a major street where the posted or statutory speed limit or the 85th percentile speed exceeds 35 mph, if the engineering study finds that the plotted point representing the vehicles per hour on the major street (total of both approaches) and the corresponding total of all pedestrians crossing the major street for one hour (i.e., any four consecutive 15-minute periods) of an average day falls above the applicable curve in. The MUTCD's W24 series of signs is for warning signs relating to lane shifts, where traffic I'd diverted slightly toward the left or right of the roadway, but the route is otherwise unchanged. As described in Section 2C.46, there are several variations of the Intersection Warning sign to address a variety of intersection configurations. Gross, F., R. Jagannathan, B. Persaud, C. Lyon, K. Eccles, N. Lefler, and R. Amjadi. This sign should be used at intersections where the major road is divided and the median width is 30 feet or more. The MUTCD describes a beacon that may be used to supplement the regulatory signing at a stop-controlled intersection: An Intersection Control Beacon (Section 4L.02) is a device that contains one or more signal faces directed toward each approach to an intersection. MUTCD Section 8C.12 contains information about roundabouts that contain or are in close proximity to grade crossings. Additional equipment shall include a heavy-duty skid steer loader with bucket, broom, and fork attachments. They are sometimes used before marked crosswalks and on the approach lanes for roundabouts. Adoption Status of the 2009 National MUTCD by States. Below is a condensed version showing only the changeable message sign colors: Type of Sign Legend Color Background Color Changeable Message Signs Regulatory White, Red (for circle/slash/other red elements of a similar static regulatory sign only) Black A fluorescent yellow-green background States must adopt the new 2009 edition by January 15, 2012. Example of a retroreflective panel on a STOP sign. Traffic Signs in Stock - pick up or UPS www.firstsign.com online or call us. All road users encountering a STOP sign (R1-1) on their approach to the intersection are required to come to a complete stop before entering the intersection and then may proceed if there are no other users close to or within the intersection. The In-Street Pedestrian Crossing (R1-6 or R1-6a) sign or the Overhead Pedestrian Crossing (R1-9 or R1-9a) sign may be used to remind road users of laws regarding the right-of-way at an unsignalized pedestrian crosswalk. New Jersey MUTCD traffic circle warning sign. Quite often, people would become lost or confused by vague or absent directional signs. Additional requirements and guidance related to pedestrian hybrid beacons can be found in Chapter 4F of the MUTCD. December 22, 2013 is the implementation date for the 2009 MUTCD increased sign sizes for Regulatory Signs. Street Name (D3-1 or D3-1a) signs have a very basic function—to identify the name of the street or road for all road users, especially emergency responders and those unfamiliar with the intersection. Centerline pavement markings, when used, shall be the pavement markings used to delineate the separation of traffic lanes that have opposite directions of travel on a roadway and shall be yellow. A Policy on Geometric Design of Highways and Streets. Source: VHB. Regulatory, Road, & Traffic Signs. All school warning signs shall have a fluorescent yellow-green background color. Visitors to our site are generally looking for information about specific highway traffic regulations. One potential application would be in advance of a marked crosswalk on the major street at an unsignalized intersection used as a school crossing. Examples of LEDs within regulatory (left) and warning (right) signs. MUTCD Traffic Signs. Also, it generated a need for wider roads and driving etiquette. The first condition specifies that a crosswalk exists at an intersection if there is a sidewalk on either side, regardless of the existence of a marked crosswalk. The MUTCD is incorporated by reference in 23 CFR, Part 655, Subpart F and shall be recognized as the national standard for all traffic control devices installed on any street, highway, bikeway, or private road open to public travel. Source: Lee Engineering, LLC. Once activated, the LEDs shall flash in an alternating 2/5 pattern. Traffic control signals or pedestrian hybrid beacons (see MUTCD Part 4) are sometimes used at roundabouts to facilitate the crossing of pedestrians or to meter traffic. Description: English: Traffic sign in New Jersey warning of a traffic circle (roundabout) ahead. specifications for highway use. While the MUTCD standards are written to cover every aspect of road and highway safety, they are numerous and complex. The following signs are specified in Section 2B.18 for use in prohibiting movements at unsignalized intersections: There are several intersection lane control signs that can be used to require road users in certain lanes to turn, permit turns from a lane where such turns would otherwise not be permitted, require a road user to stay in the same lane and proceed straight through an intersection, or indicate permitted movements from a lane. Add a strip of retroreflective material to the sign support in compliance with the provisions of, Line extensions through intersections (dotted lines)—used when connecting through lanes are offset or when it is desired to delineate the travel path for turning maneuvers that may not be obvious or comprise multiple turn lanes; see. When the STOP or YIELD sign itself is not visible for a sufficient distance to permit the road user to respond to the device, then an appropriate Advance Traffic Control sign—the symbolic Stop Ahead sign (W3-1) or the symbolic Yield Ahead sign (W3-2)—is required. The LEDs remain dark until activated by a pedestrian pushbutton or by pedestrian detection. FHWA / MUTCD Minimum Retroreflectivity Levels Standards for Retro Reflective Signs / Sign Sheeting, MUTCD 2009 Compliance Dates Speed Limit Sign / Color of Changeable Message Legend, MUTCD 2009 Standard Regulatory Sign Sizes, 2009 MUTCD Yield Sign Application Compliance Dates, MUTCD Compliance Date for Crossbuck Support Retroreflective Strips, Google ad and content network privacy policy. If this is done, a double yellow centerline should be used to emphasize that the street is for two-way traffic. This device is typically used where the traffic volumes or physical conditions do not justify a conventional traffic signal, but crash rates indicate the possibility of a special need. The color of traffic signs is an important indicator of the information the signs contain. The conditions under which a STOP or YIELD sign would be used are discussed in the UIIG’s Selection of Appropriate Control. 2011. The MUTCD specifies regulatory signs that apply to unsignalized pedestrian crosswalks. Minimum Visibility Distances for Placement of Advance Traffic Control Signs. The Yield Here to Pedestrians(R1-5 or R1-5a) sign and the Stop Here for Pedestrians (R1-5b and R1-5c) sign are intended for use on the uncontrolled multilane approaches to indicate where motorists are to yield or stop even i… The 1900’s  brought economic affluence and the automobile to America, and soon families were venturing further from home on weekend outings. A small light directed at and visible to pedestrians in the crosswalk may be installed with the RRFB or pushbutton to give confirmation that the RRFB is indeed in operation. The two RRFB indications shall be aligned horizontally, with the longer dimension horizontal and with a minimum space between the two indications of approximately seven inches (7 in), measured from inside edge of one indication to inside edge of the other indication. PED XING—There is no guidance in the MUTCD for this word message, but it may be considered where there is a high volume of pedestrians crossing the major street at an unsignalized intersection. These reflective signs will not fade or chalk like some of the plain baked enamel and plain vinyl signs marketed by other sign companies. At intersections that are often mistaken by motorists to be under all-way STOP control, further clarification may be needed to warn of oncoming traffic that is not required not stop. The following is a list of 9 major parts of the MUTCD. Combination No U-Turn/No Left Turn (R3-18). Section 2C.02 Application of Warning Signs Standard: 01 The use of warning signs shall be based on an engineering study or on engineering judgment. Learn More. These are summarized below in the following order: Many of these devices are identified as “treatments” in the UIIG (see Types of Treatments), and there are corresponding fact sheets within the UIIG Toolkit. W4-1L 30" Dia. Source: VHB. The placement of the warning sign should be such that the Perception-Response Time (PRT) is adequate to allow motorists to detect, recognize, decide, and react to the condition of which they are being warned. Support: The FDOT is authorized under Chapter 316 of the Florida Statutes and the Federal Highway Administration's Manual on Uniform Traffic Control Devices (MUTCD) to provide the state with a uniform system of traffic signs and signals. MUTCD-Recommended Minimum Letter Heights for Street Name Signs. A typical application is shown in Figure 2B-12. A sign’s conspicuity may also be enhanced by removing non-essential and illegal signs from the right-of-way, as noted in Section 1A.08. RIGHT (LEFT) TURN ONLY—While use of these three words is permitted, the message that an intersection approach lane is to be used exclusively for turning maneuvers is often conveyed using:  (1) the appropriate (i.e., left or right) lane-use arrow marking; or, (2) the appropriate lane-use arrow marking and the word ONLY. Regulatory Signs HERE TO RI-5 36 X36 ONLY OTHER TIMES R3-9e 108 x 48 YIELD HERE TO PEDESTRIANS RI-5a 36 x 48 CENTER LANE 7-9 AM MON-FRI R3-9f 30 x 42 36 x 54 HERE RI -5b 36 STOP HERE FOR PEDESTRIANS RI-5c 36 x 48 ATE LAW STOP FOR WITHY ROSSWAL RI-6 ATE LAW TO WITHY ROSSWA RI-6a The legend STATE LAW is optional. Add a solid yellow or fluorescent yellow rectangular plaque above a regulatory sign comprised of yellow or fluorescent yellow material with black letters stating “NOTICE” (. Example of yield lines at a roundabout. While not in the 2009 MUTCD, FHWA released an interim approval of RRFBs in July 2008 that provides the following additional information: Video: Example of a RRFB in use (YouTube/Oregon DOT). California Manual on Uniform Traffic Control Devices. Stop lines are typically at least 12 inches wide and are to be placed at the desired stopping point. Traffic calming devices that affect turning speeds at intersections (reduced turning radii, forced turn island, diagonal diverter, median barrier, curb extension, realigned intersection) should have a speed profile of 10 mph. Example of an Intersection Control Beacon. Example of a speed limit sign beacon. The Intersection Control Beacon is generally located over the center of the intersection. 1. In order to install stop signs, a warrant analysis must be completed that meets the requirements outlined in the Manual on Uniform Traffic Control Devices (MUTCD). Engineering judgment should be exercised when placing the warning signs, as the distances above can be adjusted for roadway features, other signing, and to improve visibility. An RRFB is a warning beacon that consists of a pedestrian crossing sign (W11-2 or S1-1), diagonal downward arrow (W16-7p) plaque, and user-activated light-emitting diodes (LEDs) using an irregular flash pattern that is similar to an emergency vehicle flasher. Guidance: 02 The use of warning signs should be kept to a minimum as the unnecessary use of warning signs tends to breed disrespect for all signs. Slow down traffic and prevent a serious accident with proper notification. R6-4a Roundabout Directional Arrow (3 chevrons) is shown as as a white horizontal rectangle sign with three black chevron symbols pointing to the right. Both modern and mini-roundabouts have the following special signing requirements: Examples of roundabout signing are shown in Figures 2B-21, -22, and -23. The marking types include pavement and curb markings, delineators, colored pavements, channelizing devices, and islands. Some heavily traveled routes could boast of almost a dozen different sign markings. The Manual on Uniform Traffic Control Devices (MUTCD) consist of 9 parts. Support vehicle stocked with MUTCD traffic control devices (signs, sign stands, and cones etc.) The two regulatory traffic control devices for unsignalized intersections are the YIELD and STOP signs, with the latter control being more common. The values above are meant to serve as an aid for placing advance warning signs and do not provide a precise measurement. Source: SCDOT. The Manual on Uniform Traffic Control Devices for Streets and Highways (MUTCD) is a document issued by the Federal Highway Administration (FHWA) to be used by Federal, state, and local agencies to ensure that traffic control devices—signs, signals, markings, or other devices used to regulate, warn, or guide traffic—are designed, installed, and applied consistently across the U.S. Roundabout Directional Arrow (R6-4 series) sign—Placed in the central island, this sign has two (R6-4), three (R6-4a), or four (R6-4b) black chevron symbols pointing to the right to direct traffic counterclockwise around the central island (, Increase the size of a standard regulatory, warning, or guide signs. FHWA-HRT-08-043, December 2007. A good example of a traffic circle is the intersection of US1 and Hollywood Blvd in Broward County (Click here for a Google Maps link). Such plaques are used to “provide road users with advance information to identify the name(s) of the next intersecting street to prepare for crossing traffic and to facilitate timely deceleration and/or lane changing in preparation for a turn” (see Section 2C.58). *On local two-lane streets with speed limits of 25 mph or less, 4-inch initial uppercase letters with 3-inch lowercase letters may be used. W16-12P TRAFFIC CIRCLE Sign. MUTCD stands for the”Manual on Uniform Traffic Control Devices.”  The purpose of the MUTCD is to set minimum standards for all Traffic Control Devices used on U.S. roads and highways. Traffic Circle Sign Details: Traffic Circle Sign is manufactured on durable rust-proof .080" aluminum; Pre-punched 3/8" mounting holes in top and bottom for easy installation. The sizes of the signs are based primarily on the type of road and are found in the MUTCD in. Quoted MUTCD Standards. Within the MUTCD, there are numerous traffic control devices that are required (standard), should be used (guidance), or may be used (option) at unsignalized intersections. Captions. However, some unsignalized intersections will require pavement markings to delineate the following situations: While not required by the MUTCD, stop lines (also known as “stop bars”) may be used to indicate the point behind which vehicles are required to stop in compliance with a STOP sign or a Stop Here for Pedestrians (R1-5b, R1-5c) sign. Example of EXCEPT RIGHT TURN plaque. The MUTCD (see Section 2B.06 [STOP Sign Applications]) states that a STOP sign would be appropriate on the minor-street approaches if it is determined that a stop is always required because of one or more of the following conditions: The vehicular traffic volumes on the through street or highway exceed 6,000 vehicles per day; Sign Catalog On a roadway with four or more lanes with a raised median or crossing island that has (or will soon have) an ADT volume of 15,000 vehicles or greater. At unsignalized intersections, crosswalk markings can be used on all approaches, including the main road that is not controlled by a STOP or YIELD sign. Each part may have many chapters which describe in detail and illustration the top addressed in that part. Learn More. STOP Sign Control. Meets M.U.T.C.D. As stated in the MUTCD, advanced warning signs for certain speed differentials shall be posted. If the requirement to stop is to be applied to all approaches, then a STOP sign is installed on all approaches and supplemented with an ALL WAY (R1-3P) plaque beneath the STOP sign. Summary . Standard Regulatory Sign Sizes. As described in Section 2C.59, plaques mounted below a STOP sign to deliver such a warning include CROSS TRAFFIC DOES NOT STOP (W4-4P), TRAFFIC FROM LEFT (RIGHT) DOES NOT STOP (W4-4aP), and ONCOMING TRAFFIC DOES NOT STOP (W4-4bP). These signs are optional and are intended for the major road traffic that has the right-of-way. There are other situations and special cases where a YIELD sign is appropriate, but these are not relevant to a typical unsignalized intersection. SLOWER TRAFFIC KEEP RIGHT Sign (R4-3) 2B-30 2B.31 TRUCKS USE RIGHT LANE Sign (R4-5) 2B-30 2B.32 Keep Right and Keep Left Signs (R4-7, R4-8) 2B-31 ... red circle and slash on a static sign should display a red symbol that approximates the same red circle and slash as closely as possible. At unsignalized locations where engineering judgment dictates that the number of motor vehicle lanes, pedestrian exposure, average daily traffic (ADT), posted speed limit, and geometry of the location would make the use of specially designated crosswalks desirable for traffic/pedestrian safety and mobility. .080 Aluminum Radius Corners 2 holes for center post mount Non-compliance of the MUTCD can result in loss of federal-aid funds and increase of liability. YIELD AHEAD word message or Yield Ahead triangle symbol—As with the STOP AHEAD pavement marking, there is no guidance on when either of these word/symbol markings should be used, but the MUTCD specifies that the YIELD sign has to be in place at the intersection. Traffic Control Devices (TCD) include all road signs, highway markings, electronic traffic signals, railroad crossings, and road-way construction zone areas. The YIELD sign may be used at unsignalized intersections where conditions are such that a full stop is not always required.