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2003 MUTCD Part 2C Warning Signs

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1 2003 MUTCD Part 2C Warning Signs
Part 2C Changes #55 –91

2 2C.02 Categories of Warning Signs
Section 2C.02 Application of Warning Signs: Revise SUPPORT statement to reflect that “categories” not “applications” of warning signs are shown in Table 2C-1. Change title of Table 2C-1 from “Application of Warning Signs” to “Categories of Warning Signs”. 55. In Section 2C.02 Application of Warning Signs, the FHWA modifies the SUPPORT statement to reflect that “categories” not “applications” of warning signs are shown in Table 2C-1. This change makes the text and Table 2C-1 consistent. Additionally, the FHWA changes the title of Table 2C-1 from “Application of Warning Signs” to “Categories of Warning Signs” and adds new roadway related and traffic related signs and supplemental plaques to the table based on changes in other sections of Chapter 2C. This table only includes those signs that are found in Chapter 2C. Because the W14-1P and W14-2P plaques can be used alone according to Section 2C.21, the FHWA revises the table to remove the “P” designation from these two signs, and the rectangular forms of these signs are designated the W14-1a and W14-2a signs.

3 2C.03 Design of Warning Signs
Add PLAYGROUND warning sign to the listing of signs that may have a black legend and border on a yellow background or on a fluorescent yellow-green background. 56. In Section 2C.03 Design of Warning Signs, the FHWA adds playgrounds to the listing of signs that may have a black legend and border on a yellow background or a black legend and border on a fluorescent yellow-green background. This is consistent with the use of this color for school and pedestrian signs.

4 2C.04 Size of Warning signs Gameli,
See MUTCD page 2C-7 and cut/paste the W1-2 sign, page 2C-10 the W7-4 sign, and page 2C-11 the W12-2P 57. In Section 2C.04 Size of Warning Signs, the FHWA removes the SUPPORT statement referencing the “Standard Highway Signs” book because this statement is general and applies to regulatory, warning, and guide signs. A similar statement is included in Section 2A.12 Dimensions. The removal of this SUPPORT statement responds to two comments from the NCUTCD and the Illinois DOT. The FHWA changes Table 2C-2 to add a category with oversize dimensions for the following sign series: W1, W2, W7, W8, W9, W11, W14, W15-1, and W17-1. Table 2C-2 is also changed to add Expressway and Freeway dimensions (78 x 48 for both) for the W7-4 Runaway Truck Ramp 1 Mile sign. Expressways and Freeway dimension sizes (78 x 60) are also added for the W7-4b and 4c signs. Expressway and Freeway sizes (84 x 24) are added for the W12-2P Low Clearance signs to the table. Note These added dimension sizes are the same as the sizes given for conventional roads. The FHWA establishes a phase-in target compliance date of 10 years from the effective date of this final rule for existing signs in good condition to minimize any impact on State or local governments. *Compliance Date – 10 years from effective date of Final Rule

5 2C.05 Table 2C-4, Placement of Advance Warning Signs
Revise the distance for the placement of advance warning signs to correspond with values in the 2001 AASHTO “ A Policy on Geometric Design of Highway and Streets” book 58. In Section 2C.05 Placement of Warning Signs, the FHWA changes the STANDARD statement to a SUPPORT statement, that references sections to 2A.16 to 2A.21 for information on placement of warning signs. The FHWA changes Table 2C-4 so that the distances for the placement of advance warning signs correspond to the values in the 2001 AASHTO “ A Policy on Geometric Design of Highway and Streets” book and to make the table easier to use. Advanced placement distances have significantly decreased based on the 2001 AASHTO Policy, and the MUTCD reflects these changes.

6 2C.05 Table 2C-4, Placement of Advance Warning Signs
Combine the “Condition B” and “Condition C” columns and label them “Condition B” Add columns for 90, 100, and 110 km/h and 60 and 70 mph for the deceleration speed Add rows for 70 and 75 mph to the Posted or 85 percentile column. These changes to Table 2C-4 reflect the needs of older road users. In Table 2C-4, the FHWA combines the “Condition B” and “Condition C” columns and label them “Condition B”. The FHWA also proposes adding columns for 90, 100, and 110 km/h and 60 and 70 mph to the deceleration listed advisory speeds. Rows are added for 70 and 75 mph for the Posted or 85th Percentile Speed. These changes to Table 2C-4 are proposed to reflect the needs of older road users. [1] “A Policy on Geometric Design of Highways and Streets,” 4th Edition, 2001, in both hardcopy and CD-ROM, is available from the American Association of State Highway and Transportation Officials (AASHTO) by telephone (800) , facsimile (800) , mail AASHTO, P.O. Box 96716, Washington, DC , or at its web site and click on Bookstore.

7 2C.05 Table 2C-4, Placement of Advance Warning Signs
In Table 2C-4, the FHWA combines the “Condition B” and “Condition C” columns and label them “Condition B”. The FHWA also proposes adding columns for 90, 100, and 110 km/h and 60 and 70 mph to the deceleration listed advisory speeds. Rows are added for 70 and 75 mph for the Posted or 85th Percentile Speed. These changes to Table 2C-4 are proposed to reflect the needs of older road users. [1] “A Policy on Geometric Design of Highways and Streets,” 4th Edition, 2001, in both hardcopy and CD-ROM, is available from the American Association of State Highway and Transportation Officials (AASHTO) by telephone (800) , facsimile (800) , mail AASHTO, P.O. Box 96716, Washington, DC , or at its web site and click on Bookstore.

8 2C.06 Horizontal Alignment Signs
Hairpin Curve 270 Degree Loop 59. In Section 2C.06, the FHWA revises the section title to reflect the new Hairpin Curve (W1-11) sign and the 270 Degree Loop (W1-15) sign. An OPTION statement is added for the use of these new signs. These new signs better portray the severe curvature for these types of horizontal alignment changes. The FHWA adds an OPTION statement at the end of the section that provides a method that may be used to determine the need for additional speed reduction warning signs. The FHWA includes these optional criteria for determining the need for additional recommended speed reduction signs to mitigate the high number of run-off-the-road crashes along curves and ramps. Similar to their comments in Section 2C.36 Advisory Exit, Ramp, and Curve Speed Signs (W13-2, W13-3, W13-5), These new signs better portray the severe curvature for these types of alignment changes.

9 2C.06 Horizontal Alignment Signs
Add GUIDANCE to install a One-Direction Large Arrow or Chevron Alignment sign on the outside of a turn or curve when the Hairpin Curve or 270-degree Loop sign is installed. W1-6 The FHWA also adds to the GUIDANCE statement a recommendation to install a One-Direction Large Arrow (W1-6) sign or Chevron Alignment (W1-8) sign on the outside of a turn or curve when the Hairpin Curve sign or 270-Degree Loop sign is installed. This provides for enhanced warning to road users of the severe alignment change and may help reduce run-off-the-road crashes. W1-8

10 2C.06 Horizontal Alignment Signs for Speed Reduction
If the reduction in speed is 15 mph or greater, the W1-1a, W1-2a, or W13-5 signs may be used. Option states that if the reduction in speed is 15 mph or greater, a supplemental combination Horizontal Alignment/Advisory Speed sign or Curve Speed sign may be installed as near as practical to the point of curvature. If the reduction in speed is 25 mph or greater, one or more additional Curve Speed signs may be installed along the curve. This statement is added to provide a method that may be used to determine the need for additional speed reduction warning signs which may be used in locations with a high number of run-off-the-road crashes along curves and ramps. The FHWA believes the Curve Speed sign is a helpful sign to remind drivers of the advisory speed and may help mitigate crashes on curves. Most curves are very well outlined with delineators or chevron signs. However, because crashes are still occurring, the FHWA believes that this sign could be used to the advantage of reminding drivers of the recommended reduction in speed as they proceed along the curve or ramp.

11 2C.06 Horizontal Alignment Signs (Table 2C-5)
Metric Advisory Speed values are added to Table 2C-5. They were inadvertently omitted in the 2000 Edition. The FHWA adds to Table 2C-5 the metric speed value of less than or equal to 50 km/h along with the English unit of less than or equal to 30. Also, the metric speed value of greater than 50 km/h along with the English unit of greater than 30 mph is shown metric. The values were inadvertently omitted from the Millennium Edition of the MUTCD.

12 2C.07 Combination Horizontal Alignment/Advisory Speed Signs
New standard designs with advisory speed as part of the symbol design 60. In Section 2C.07 Combination Horizontal Alignment/Advisory Speed Signs (W1-1a, W1-2a) (titled “Combination Horizontal Alignment/Advisory Speed Sign (W1-9)” in the 2000 MUTCD), these new signs are added to supplement other advance warning signs and are installed at the beginning of the turn (W1-1a) or curve (W1-2a). Other proposed sign designs withdrawn for further

13 2C.10 Chevron Alignment Sign
The design of the Chevron Alignment sign – a border shall not be used 61. In Section 2C.10 Chevron Alignment Sign (W1-8), the FHWA adds a STANDARD statement that a border shall not be used on the Chevron Alignment sign. This change corrects an error in the 2000 MUTCD. Borders are used on all signs except the Chevron Alignment Sign.

14 2C.11 Truck Rollover Warning Sign
The FHWA adds a new section numbered and titled, “Section 2C.11 Truck Rollover Warning Signs (W1-13).” This section was numbered Section 2C.54 in the NPA. This new section includes OPTION and STANDARD statements on the use of the Truck Rollover warning sign to warn drivers of vehicles with a high center of gravity of a curve or turn having geometric conditions that are prone to cause such vehicles to lose control and overturn. This new section provides for uniform design and application of signs for this purpose, using the Pennsylvania sign design that research found to be most effective in warning truckers of the condition.[1] The FHWA adds a SUPPORT statement clarifying that the curved arrow on the sign shows the direction of the roadway curvature, and that the truck tips in the opposite direction. The W1-13a proposed in the NPA was not added to the 2003 MUTCD because of comments that there was too much information for the motorist to read and comprehend. The FHWA establishes a phase-in target compliance date of 10 years from the effective date of this final rule for existing signs in good condition to minimize any impact on State or local governments. [1] “Ramp Signing for Trucks,” by the Center for Applied Research, Inc., December 20, 1989, a research project conducted for the Federal Highway Administration (FHWA) under contract number DTFH61-88-C-00048, is available from FHWA Turner-Fairbank Highway Research Center, 6300 Georgetown Pike, McLean, Virginia 22101, web site * Compliance date is 10 years from the effective date of the Final Rule for the 2003 MUTCD.

15 2C.12 Hill Signs These signs supplement the Hill Signs (W7-1, W7-1a,
and W7-1b) 63. In Section 2C.12 Hill Signs (W7-1, W7-1a, W7-1b) (numbered Section 2C.11 in the NPA), the FHWA adds a GUIDANCE statement to clarify that on longer grades, the Hill sign with distance (W7-3a) plaque or the combination distance/grade (W7-3b) plaque spaced at periodic intervals of approximately 1.6 km (1 mi) should be considered. This change clarifies that the plaques should not be used alone but should supplement the Hill sign.

16 2C.13 Truck Escape Ramp Signs
Add to STANDARD to indicate that at least one of the W7-4 series signs shall be used when truck escape ramps are installed. 64. In Section 2C.13 Truck Escape Ramp Signs (W7-4 Series) (numbered Section 2C.12 in the NPA), the FHWA adds a STANDARD statement to indicate that at least one of the W7-4 series warning signs shall be used when truck escape ramps are installed. This change clarifies that a minimum of one sign shall be used but additional warning signs may be used as conditions warrant. The FHWA also adds an illustration on Figure 2B-8 of the regulatory word message (black on white) RUNAWAY VEHICLES ONLY (R4-10) sign.

17 2C.14 HILL BLOCKS VIEW Sign Add Option for use of sign GUIDANCE: An
advisory speed plaque should accompany The HILL BLOCKS VIEW sign. 65. The FHWA adds a new section numbered and titled, “Section 2C.14 HILL BLOCKS VIEW Sign (W7-6).” This section was numbered Section 2C.50 in the NPA. This section includes an OPTION statement on the use of the HILL BLOCKS VIEW sign in advance of the crest of a vertical curve to advise road users of limited view and to reduce speed as they approach and traverse the hill. The FHWA adds this sign because it is in use, fulfills an important need, and has been found by older driver research[1] to be well understood by road users. Because this is an OPTION, some State and local DOTs may choose to use this sign, and others may not. Additionally, the FHWA includes a GUIDANCE statement, indicating that when a HILL BLOCKS VIEW sign is used, an Advisory Speed plaque based on available stopping sight distance should accompany it. The FHWA includes the plaque because road users should be advised of the recommended speed for traversing the hillcrest.

18 2C.16 Narrow Bridge/Road Sign
In Section 2C.15 ROAD NARROWS Sign (W5-1) (numbered Section 2C.13 in the NPA), the NPA proposed to rename the Narrow Bridge sign to the Narrow Road Sign. The FHWA proposed this change because it felt that the road user’s understanding of the symbol is not exclusively as “narrow bridge ahead,” but rather as symbolic of any narrowing of the road, such as the presence of curb bulb-outs or chicanes. Based on poor understanding of the symbol message, the FHWA deletes the W5-1a symbol sign (designated W5-2a in the 2000 MUTCD), and adopts only the word message ROAD NARROWS (W5-1) sign and Narrow Bridge sign (W5-2). The Final Rule compliance date is 10 years from effective date. Use these word message signs DELETE *Compliance date is 10 years from the effective date of the Final Rule

19 2C.19 Divided Highway (Road) Ends Sign
Modify GUIDANCE to clarify that a W6-2 Symbol sign should be used in advance of the end of a section of physically divided highway (not at an intersection or junction) 68. In Section 2C.19 Divided Highway (Road) Ends Sign (W6-2) (numbered Section 2C.17 in the NPA), the FHWA modifies the GUIDANCE statement to clarify that a Divided Highway Ends (W6-2) symbol sign should be used in advance of the end of a section of physically divided highway as a warning of two-way traffic ahead. It should not be used at the start of an intersection or junction.

20 2C.21 DEAD END/NO OUTLET Signs
Combine Section 2C.40 with Section 2C.21 Redesignate the W14-1a and W14-2a plaques as signs Clarify that the W14-1 and W14-2 signs shall be posted as near as practical to the entry point or at a sufficient distance ahead 69. FHWA has combined section 2C.40 with section 2C.21 and redesignated the rectangular shaped W14-1a and W14-2a plaques to signs. The W14-1a and W14-2a signs may be used in combination with Street Name (D3-1)signs to warn turning traffic that the cross street ends in the direction indicated by the arrow. The FHWA also clarifies that when the diamond shaped W14-1 or W14-2 sign is used, the sign shall be posted as near as practical to the entry point or at a sufficient advance distance to permit the road user to avoid the dead end or no outlet condition by turning off, if possible, at the nearest intersecting street. This change gives additional flexibility to jurisdictions when posting the sign at the exact entry point is not practical due to obstructions or other factors. The FHWA also restores the following text from the 1988 MUTCD that was inadvertently removed in the 2000 MUTCD: “The W14-1a and W14-2a signs shall not be used instead of the W14-1 or W14-2 signs where traffic can proceed straight through the intersection into the dead end street or no outlet area.”

21 2C.22 Low Clearance Signs Clarify STANDARD by removing the words “or minimum structure height” 70. In Section 2C.22 Low Clearance Signs (W12-2 and W12-2) (numbered Section 2C.20 in the NPA), the FHWA clarifies the STANDARD statement by removing the words “or minimum structure height.” This change clarifies the proper application of Low Clearance signs. Additionally, the FHWA clarifies the GUIDANCE statement by changing the phrase “legal limit” to “legal maximum vehicle height” to reflect more precisely the proper dimension. If a sign is placed on the structure it may be a rectangular shape (W12-2p).

22 2C.23 BUMP and DIP Signs Modify Guidance that a short stretch of depressed alignment that might momentarily hide a vehicle should be treated as a NO PASSING ZONE 71. In Section 2C.23 BUMP and DIP Signs (W8-1, W8-2) (numbered Section 2C.21 in the NPA), the FHWA modifies the second GUIDANCE by replacing the word “may” with “might” to avoid the possible confusion of this Guidance statement as an OPTION statement. A short stretch of depressed alignment that might momentarily hide a vehicle should be treated as a no-passing zone when centerline striping is provided on a two-lane or three-lane road.

23 2C.24 SPEED HUMP/BUMP Sign Add to OPTION to allow alternate legend SPEED BUMP 72. In Section 2C.24 SPEED HUMP Sign (W17-1) (numbered Section 2C.22 in the NPA), the FHWA adds an OPTION to use the legend SPEED BUMP instead of the legend SPEED HUMP on the W17-1 sign. This provides additional flexibility to jurisdictions and reduces sign inventory. The NCUTCD opposed this change and stated that speed humps and speed bumps are not the same. They are designed and applied differently, and therefore should be signed accordingly. While the FHWA agrees that speed humps and speed bumps are different, the FHWA believes that the general public does not readily perceive the difference in terminology or design between speed humps and speed bumps. To allow jurisdictions to use the terminology that will be best understood locally and to minimize maintenance issues, the FHWA adopts the OPTION.

24 2C.26 SHOULDER Signs Move UNEVEN LANES sign to Part 6
GUIDANCE that SHOULDER DROP OFF sign is for shoulder drop-offs that exceed 3 inches in depth. In Section 2C.26 SHOULDER Signs (W8-4, W8-9, and W8-9a) (numbered and titled “Section 2C.24 SHOULDER and UNEVEN LANES Signs (W8-4, W8-9, W8-9a, and W8-11)” in the NPA), the FHWA removes the UNEVEN LANES (W8-11) sign and discussion from this section to Part 6, temporary traffic control applications. A Guidance statement is added that the SHOULDER DROP OFF (W8-9a) sign should be used when a shoulder drop-off, adjacent to the travel lane, exceeds 75 mm (3 in) in depth for a significant continuous length and is not delineated by portable barriers. (Note that this was originally proposed as a Standard in the notice of proposed amendment ) The compliance date of January 17, 2011 was established in the 2000 edition of the MUTCD. That is when the symbols for the Uneven Lane and Shoulder Drop Off signs were deleted from the Manual. *Compliance date for removal of symbol signs is January 17, 2011

25 2C.28 BRIDGE ICES BEFORE ROAD Sign
New Section Add OPTION for use 74. The FHWA adds a new section numbered and titled, “Section 2C.28 BRIDGE ICES BEFORE ROAD Sign (W8-13).” (This section was numbered Section 2C.52 in the NPA.) This new section includes an OPTION that the BRIDGE ICES BEFORE ROAD sign, may be used in advance of bridges to advise road users as they approach and traverse the bridge during winter weather conditions.

26 2C.29 Advance Traffic Control Sign
Clarify that reference in text to beacon refers to a warning beacon. 75. In Section 2C.29 Advance Traffic Control Signs (numbered Section 2C.26 in the NPA), the FHWA clarifies that the reference to a beacon in the second OPTION statement and the second GUIDANCE statement is a reference to a warning beacon. This clarification is necessary to be consistent with prescribed use of warning beacons in Part 4 of the MUTCD. W3-4

27 Speed Reduction Signs (Section 2C.30)
Add new Section Speed Reduction Signs 76. The FHWA adds a new section numbered and titled, “Section 2C.30 Speed Reduction Signs (W3-5, W3-5a).” (This Section was numbered Section 2C.51 in the NPA.) This new section includes a GUIDANCE statement, which recommends using the Speed Reduction signs to inform road users of a reduced speed zone when engineering judgment indicates the need for advance notice to comply with the posted speed limit ahead. These new warning signs replace the regulatory signs (R2-5a, b, and c) formerly in Section 2B. The intended message is more properly categorized as a warning message rather than regulatory message.. To respond to comments regarding the costs associated with this change, the FHWA revises the phase-in target compliance date to 15 years from the effective date of this final rule for existing R2-5 signs in good condition to be changed to W3-5 or W3-5a signs, to minimize any impact on State or local governments. The FHWA received several comments from the Arizona DOT and private citizens suggesting revisions to the design of the W3-5 and W3-5a signs to make them more legible from longer distances. To address these comments, the FHWA makes minor refinements to the English unit version of the W3-5 symbol sign to make the numerals 9 inches high for the 36” x 36” sign and 12 inches high for the 48” x 48” sign, and adjusts the layout slightly. The FHWA also deletes the metric alternate of the W3-5 symbol sign because the numerals on it would be too small. The only allowable metric version of the Speed Reduction Warning sign is to be the metric word message W3-5a sign. Additionally, the FHWA includes a STANDARD statement, which requires that a Speed Reduction Warning sign be followed by a Speed Limit (R2-1) sign installed at the beginning of the zone where the speed limit applies and that the speed limit displayed on the Speed Reduction sign shall be identical to the speed limit displayed on the subsequent Speed Limit sign. This is needed to provide for uniform application of these signs. [1] “Manual on Uniform Traffic Control Devices for Canada”, 1998, and a December 2002 update, are available for purchase from the Transportation Association of Canada, at the following URL: https://mediant.magma.ca/tacatc/bookstore/bookstore.cfm and click on “Traffic Control”. *Compliance period is 15 years from effective date of Final Rule

28 2C.31 Merge Signs Add New Entering Roadway Merge Sign W4-5
Add to GUIDANCE that the ENTERING ROADWAY MERGE sign for use on a roadway curves before converging In Section 2C.31 Merge Signs (W4-1, W4-5) (numbered Section 2C.28 in the NPA), the FHWA adds a a new Entering Roadway Merge (W4-5) sign. The FHWA adds a recommendation that when a Merge sign is to be installed on an entering roadway that curves before merging with the major roadway, the Entering Roadway Merge (W4-5) sign should be used. This sign is recommended for this condition because it better portrays the actual geometric conditions to road users on the entering roadway. The FHWA establishes a phase-in target compliance date of 10 years from the effective date of this final rule for existing signs in good condition to minimize any impact on State or local governments. *Compliance date is 10 years from effective date of Final Rule

29 2C.32 Added Lane Signs Add ENTERING ROADWAY ADDED LANE sign W4-6
Add to GUIDANCE that the ENTERING ROADWAY ADDED LANE sign for use on a roadway curves before converging In Section 2C.32 Added Lane Signs (W4-3, W4-6) (numbered Section 2C.29 in the NPA), the FHWA changes the title to reflect the addition of the new Entering Roadway Added Lane (W4-6) sign (referred to as W4-3a in the NPA). In addition to the title change, the FHWA adds to the GUIDANCE statement, that when an Added Lane sign is to be installed on a roadway that curves before converging with another roadway that has a tangent alignment at the point of convergence, the Entering Roadway Added Lane (W4-6) sign should be used. This sign is recommended for this condition because it better portrays the actual geometric conditions to road users on the entering roadway. The FHWA notes that this sign has been used in the State of Washington for the intended geometric conditions. The FHWA adopts the change and establishes a phase-in target compliance date of 10 years from the effective date of this final rule for existing signs in good condition to minimize any impact on State or local governments. * Compliance Date is 10 years from date of Final Rule

30 2C.33 LANE ENDS Sign Add New Symbol Design for the Lane Ends (W4-2) sign. In Section 2C.33 Lane Ends Signs (W4-2, W9-1, W9-2) (numbered Section 2C.30 in the NPA), the FHWA changes the title of the section to reflect the addition of the sign number for the Lane Ends (W4-2) sign (referred to as the Lane Reduction sign in the NPA.) The FHWA adopts a revised design for W4-2 sign that is identical to the design used in Canada for several decades. A study in Canada found the Canadian symbol sign to be legible in the range of 70 to 200 meters, which is better legibility than most symbols. The FHWA adopts this design in this final rule because the long-standing Canadian use of this sign indicates it is successful and because having a uniform design between the U.S. and Canada will benefit cross-border travelers. The adopted sign design conveys that the number of lanes is being reduced by one, regardless of how many total lanes are on the roadway. The FHWA establishes a phase-in target compliance date of 10 years from the effective date of final rule for existing signs in good condition to minimize any impact on State or local governments. *Compliance period is 10 years from effective date of Final Rule

31 2C.34 TWO-WAY TRAFFIC Sign Add to GUIDANCE that W6-3 sign should be used to warn road users of a transition from a one-way street to a two-lane, two-way roadway AHEAD plaque should be used In Section 2C.34 Two-Way Traffic Sign (W6-3) (numbered Section 2C.31 in the NPA), the FHWA adds to the GUIDANCE statement that a Two-Way Traffic sign with an AHEAD (W16-9P) plaque should be used to warn road users of a transition from a one-way street to a two-lane, two-way section of roadway. The use of an AHEAD plaque with the W6-3 sign is recommended to enhance safety by minimizing possible misinterpretation of the meaning of the sign in that particular application. The FHWA establishes a phase-in target compliance date of five years from the effective date of this final rule for existing signs in good condition to minimize any impact on State or local governments. *Compliance period is 5 years from effective date of Final Rule

32 2C.36 Advisory Exit, Ramp, and Curve Speed Signs
In Section 2C.36 Advisory Exit, Ramp, and Curve Speed Signs (W13-2, W13-3, W13-5) (numbered Section 2C.33 in the NPA), the FHWA changes the design of the metric exit speed, ramp speed, and curve speed signs, and advisory speed signs/plaques so that the metric speed value is within a black circle with “km/h” below. This new design is consistent with the new metric speed limit signs in Chapter 2B, Regulatory Signs. The FHWA adds a new OPTION stating that a Curve or Turn sign with Advisory Speed plaque may be used in place of a Ramp Speed sign if it is located such that it is clear that the advisory speed does not apply to drivers on the main roadway. Highway curves have a crash rate about three times the rate for highway tangent segments and a run-off-the-road crash rate about four times the tangent segment rate. Because crashes are still occurring on curves, the FHWA believes that there is a need to remind drivers of the recommended reduction in speed as they proceed along the curve or ramp. The FHWA also adds a new OPTION stating that, based on engineering judgment, the Curve Speed sign may be installed on the inside or the outside of the curve to enhance its visibility. Additionally, the FHWA adds the OPTION that the advisory speed may be the 85th percentile speed of free-flowing traffic, the speed corresponding to a 16-degree ball-bank indicator reading,[1] or the speed otherwise determined by an engineering study due to unusual circumstances. The FHWA includes this OPTION criteria to provide flexibility for determining the recommended advisory speed.   W13-2 W13-3 W13-5

33 2C.36 Example of Advisory Speed Signs at Exit Ramps (Fig. 2C-8)
The FHWA added “Figure 2C-8 Example of Advisory Speed Signing for an Exit Ramp” to illustrates the use of the Exit Speed sign along the deceleration lane and the use of the Ramp Speed signs along the actual ramp. The figure will clarify application of these signs to jurisdictions.

34 2C.37 Intersection Warning Signs
Revised design for CIRCULAR INTERSECTION warning sign Modify GUIDANCE to exclude CIRCULAR INTERSECTION sign from restriction from use on approaches controlled by STOP or YIELD signs for use in advance of roundabout intersections 82. In Section 2C.37 Intersection Warning Signs (W2-1 through W2-6) (numbered Section 2C.34 in the NPA), the FHWA changes the design of the CIRCULAR INTERSECTION (W2-6) sign to a symbol sign with three rotating arrows to better portray the operations at circular intersections. The FHWA adopts the three-arrow sign because it is consistent with the international symbol for a roundabout intersection and with FHWA roundabout design handbook[1] and it has significantly longer recognition distance than the previous sign. The FHWA establishes a phase-in target compliance date of 10 years from the effective date of this final rule for existing signs in good condition to minimize any impact on State or local governments. In order to educate road users, a TRAFFIC CIRCLE word message plaque may accompany the Circular Intersection (W2-6) sign installed in advance of a circular intersection. Additionally, the FHWA modifies the GUIDANCE to clarify that the Circular Intersection Warning symbol (W2-6) sign and the T-intersection symbol (W2-4) sign are the only intersection warning signs that can be used on approaches controlled by STOP signs, YIELD signs, or signals. [1] “Roundabouts: An Informational Guide,” FHWA, Report Number: FHWA-RD is available at the following URL: *Compliance period is 10 years from Final Rule

35 2C.39 Traffic Signal Signs Add new Section Traffic Signal Signs
Add STANDARD on use of these signs 83. The FHWA adds a new section numbered and titled, “Section 2C.39 Traffic Signal Signs (W25-1, W25-2).” (This section was numbered Section 2C.53 in the NPA.) This new section requires that, unless a separate left-turn signal face is provided and is operated as described in Section 4D.06, if the possibility exists that a CIRCULAR YELLOW signal indication could be displayed to an approach from which drivers are making permissive left turns, and a CIRCULAR YELLOW signal indication is not simultaneously displayed to the opposing approach (see Section 4D.05), then either a W25-1 or a W25-2 sign shall be installed near the left-most signal head. This new section includes 2 STANDARD word message traffic signal signs: the ONCOMING TRAFFIC HAS EXTENDED GREEN (W25-1) and ONCOMING TRAFFIC MAY HAVE EXTENDED GREEN (W25-2). The FHWA adds this new section because these signs are adopted in Chapter 4D as one of several ways to eliminate or reduce safety issues associated with the “yellow trap” (as described in the discussion of Section 4D.05) in some traffic signal phasing sequences.

36 2C.40 Vehicular Traffic Signs
Add Truck symbol, Bicycle, Golf Cart, and Horse-Drawn Vehicle signs Add OPTION – SHARE THE ROAD may be mounted below Vehicular Traffic Signs 84. In Section 2C.40 Vehicular Traffic Signs (W8-6, W11-1, W11-5, W11-5a, W11-8, W11-10, W11-11, W11-12p, W11-14) (numbered and titled “Section 2C.36 Motorized Traffic Signs (W8-6, W11-5, W11-5a, W11-8, W11-10, W11-10a, W11-12)” in the NPA), the FHWA changes the title to be consistent with the changes in Section 2C.41 and to reflect the addition and deletion of some signs from this section. The FHWA adds signs to Figure 2C-9 that were adopted in the MUTCD but never shown in the MUTCD such as the W11-11 Golf Cart and W11-14 Horse-Drawn Vehicle signs. The FHWA adds a sentence in this OPTION that the TRUCK CROSSING (W8-6) word message sign may be used as an alternate to the Truck Crossing symbol sign, to provide additional flexibility. A 10-year phase-in target compliance date from the effective date of this final rule is established for the new symbol signs. Four commenters representing State and local DOTs and private citizens also opposed the new W11-10a truck sign, again stating that existing W11-10 sign is sufficient, and road users will not distinguish the differences between the two signs. The FHWA agrees and removes the W11-10a sign from the MUTCD in this final rule. the FHWA adds sign images of the W11-7 Equestrian and W11-9 Handicapped signs. Based on the comments from the NCUTCD and a private citizen, the FHWA removes the W11-4a Horse-and-Buggy, W11-15 Waterfowl, and the W11-10a construction dump truck signs from Figure 2C-9 as well as the section text. The FHWA believes that only one sign depicting a horse and buggy and one sign depicting a truck is necessary. In the second OPTION statement, the FHWA adds that a supplemental plaque with the legend SHARE THE ROAD may be mounted below Vehicular Traffic warning signs. *Compliance period is 10 years from Final Rule

37 2C.41 NonVehicular Signs Add Equestrian, Handicapped, and Snowmobile symbol signs Add OPTION that AHEAD or XX Meters plaque may be used in advance of crossing *Compliance date is January 17, 2011 for of crosswalk lines from crossing signs and for use of downward pointing arrow 85. In Section 2C.41 Nonvehicular Signs (W11-2, W11-3, W11-4, W11-6, W11-7, W11-9) (numbered Section 2C.37 in the NPA), the FHWA changes the title to reflect that this section pertains to nonvehicular signs, not just Crossing signs. The FHWA moves the Bicycle (W11-1), Golf Cart (W11-11) and Horse-Drawn Vehicle (W11-14) symbol signs from this section to Section 2C.40 because they represent vehicular signs. The FHWA adds the Equestrian (W11-7) symbol sign, which had been adopted previously as a standard symbol in an amendment to the 1988 MUTCD but which had been inadvertently omitted from the figure illustrating Nonvehicular Signs in the 2000 MUTCD. Based on comments from the NCUTCD, State and local DOTs, and private citizens opposed to the Waterfowl Crossing sign that was proposed in the NPA because of lack of research showing effectiveness of the symbol, the FHWA withdraws that sign from the figure and the text of this final rule. Future research may develop an improved symbol for this message. The FHWA also revises the second OPTION statement to clarify that the supplemental plaques such as AHEAD or XX METERS may be used with the Nonvehicular warning signs.

38 2C.41 NonVehicular Signs Plaques
Modify STANDARD that when a NonVehicular warning sign is used at a crossing, it shall be supplemented with a diagonal downward pointing arrow (W16-7p) plaque showing the location of the crossing 85. In Section 2C.41 Nonvehicular Signs (W11-2, W11-3, W11-4, W11-6, W11-7, W11-9) (numbered Section 2C.37 in the NPA), the FHWA changes the title to reflect that this section pertains to nonvehicular signs, not just Crossing signs. The FHWA moves the Bicycle (W11-1), Golf Cart (W11-11) and Horse-Drawn Vehicle (W11-14) symbol signs from this section to Section 2C.40 because they represent vehicular signs. This change is to clarify that the supplemental downward pointing arrow shall be used with all non-vehicular warning signs. The FHWA notes that the required use of the plaque was established in the 2000 MUTCD, and at that time the FHWA established a January 17, 2011 phase-in target compliance date. The revisions to this STANDARD statement in the 2003 MUTCD merely add clarity. Consistent use of the arrow plaque at crossings is needed to educate the public regarding the meaning of the plaque. Additionally, the FHWA adds to the third OPTION statement to state that Pedestrian, Bicycle, School Advance Crossing, and School Crossing signs and their related supplemental plaques may have a fluorescent yellow-green background with a black legend and border. This change reflects the common practice for supplemental plaques to be of the same color as the signs they supplement. * Compliance date is Jan 17, 2011

39 2C.46 Advisory Speed Plaque
OPTION to use the W13-1 ADVISORY SPEED plaque to supplement any warning sign to indicate the advisory speed for a condition OPTION on how to determine the advisory speed along a ramp or curve In Section 2C.46 Advisory Speed Plaque (W13-1) (numbered Section 2C.42 in the NPA), the FHWA adds to the first OPTION statement to permit the use of an Advisory Speed (W13-1) plaque to supplement any warning sign to indicate the advisory speed for a condition. The use of the Advisory Speed plaque is required where an engineering study indicates a need to inform road users of the advisory speed for a condition and, if they are used, the speed shown shall be a multiple of 10 km/h or 5 mph. An OPTION is provided for how to determine the advisory speed along a ramp or curve (see slide 32). It may be determined by the 85th percentile spped of free-flowing traffic, the speed corresponding to a 16-degree ball bank indicator, or the speed otherwise determined by a engineering study due to unusual circumstances.

40 2C.47 Supplemental Arrow Plaques
87. In Section 2C.47 Supplemental Arrow Plaques (W16-5p, W16-6p, W16-7p) (numbered Section 2C.43 in the NPA), the FHWA changes the title to reflect the sign numbers for the (W16-7p) diagonally pointing down arrow plaque.

41 2C.50 CROSS TRAFFIC DOES NOT STOP Plaque
Replace entire section with new OPTION and STANDARD statements New STANDARD – If W4-4p plaque is used, it shall be installed below the STOP sign Delete Arrow from design OPTION – Alternate legends TRAFFIC FROM LEFT (RIGHT)/ ONCOMING TRAFFIC DOES NOT STOP 89. In Section 2C.50 CROSS TRAFFIC DOES NOT STOP Plaque (W4-4p) (numbered Section 2C.27 in the NPA), the FHWA replaces the entire section (of the 2000 MUTCD) The CROSS TRAFFIC DOES NOT STOP (W4-4p) plaque may be used in combination with a STOP sign when engineering judgment indicates that conditions are present that are causing or could cause drivers to misinterpret the intersection as a multi-way stop condition. If the W4-4p plaque is used, it shall be installed below the STOP sign. The W4-4p plaque may use alternate messages such as TRAFFIC FROM LEFT (RIGHT) DOES NOT STOP or ONCOMING TRAFFIC COES NOT STOP when such messages more accurately describe the traffic controls established at the intersection. Additionally, the FHWA removes the arrow from the design of the plaque to reduce potential confusion and misunderstanding as to whether the arrow denotes the direction cross traffic is flowing or the direction toward which the driver is to look for cross traffic.

42 2C.52 High-Occupancy Vehicle (HOV) Plaque
Add new Section HOV plaque Add OPTION for use of the HOV plaque Alternate of diamond symbol may be used 90. The FHWA adds a new section numbered and titled, “Section 2C.52 High Occupancy Vehicle (HOV) Plaque (W16-11).” (This section was numbered Section 2C.48 in the NPA.) This new section includes an OPTION that the High Occupancy Vehicle (HOV) Plaque may be used to warn drivers in an HOV lane of a specific condition and to differentiate a warning sign specific for HOV lanes when the sign is also visible to traffic on the adjoining general purpose roadway. Additionally the diamond symbol may be used instead of the word message HOV and, when appropriate, the words LANE or ONLY may be used. This will enhance road user understanding of which signs apply to which lanes.

43 2C.53 PHOTO ENFORCED Plaque
Add new section PHOTO ENFORCED plaque Add OPTION for use in advance of locations with photo enforcement of traffic laws 91. The FHWA adds a new section numbered and titled, “Section 2C.53 PHOTO ENFORCED Plaque (W16-10).” (This section was numbered Section 2C.49 in the NPA.) This new section includes an OPTION to use the PHOTO ENFORCED plaque in advance of locations where photo enforcement of traffic laws occur, thereby alerting motorists of the use of cameras as an enforcement tool. This section facilitates consistency with the PHOTO ENFORCED plaque for use with regulatory signs, as described in Section 2B.46 Photo Enforcement Signs (R10-18, R10-19). The FHWA establishes a phase-in target compliance date of 10 years from the effective date of this final rule for the PHOTO ENFORCED plaque, for existing signs in good condition to minimize any impact on State or local governments. If used below a warning sign, the PHOTO ENFORCED plaque shall be a rectangle with a black legend and border on a yellow background. This STANDARD makes the color of the plaque consistent with the color of the warning sign it supplements * Compliance period is 10 years from date of Final Rule


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