Chapter One

General Provisions

In accordance with the provisions of Section 56-5-920 of the Code of Laws of South Carolina, the South Carolina Department of Transportation (SCDOT) is authorized to adopt a manual of standards and specifications for a uniform system of traffic control devices for use upon highways and streets in this state. On May 1, 2011, SCDOT adopted the federal Manual of Uniform Traffic Control Devices (MUTCD) for this purpose.

Signs

Section 2A.01 of the MUTCD, Function and Purpose of Signs, lists thirteen categories of signs. Under the standards of Section 2A.01, the SCDOT does not distinguish between a conventional road and a low-volume road or special purpose road. Therefore, all requirements for a conventional road apply to low-volume roads and special purpose roads.

Section 2A.06 of the MUTCD, Design of Signs, indicates that all symbol signs must comply with the symbols included in the most current edition of the Standard Highway Signs book. This section also gives the flexibility to develop word message signs to notify road users of special regulations or to warn motorists of a situation that might not be readily apparent.

Section 2A.07 of the MUTCD, Retroreflectivity and Illumination, discusses the requirements for retroreflectivity for signs. Engineering Directive Memorandum 4 lists the retroreflectivity requirements for signs erected on all SCDOT roads.

Pavement Markings

All pavement markings shall comply with the requirements of the MUTCD. This supplement does not change any of the requirements of the MUTCD but does clarify the use of pavement markings for specific applications.

Traffic Signals

All traffic signal installations in the state must comply with all requirements of the MUTCD. This supplement will define the Department’s policy concerning traffic signal installations and provide guidance for special situations.

Revisions or Request for Changes

This SCDOT Traffic Engineering manual has been developed to assist traffic engineers by listing and explaining the use of special signs with layouts, which have been developed in the past to address specific needs throughout the state, and details which signs in the MUTCD are preferred for use when several different signs are available.

http://iwww.dot.state.sc.us/StateHwyEngr/EDM-Live/EDM4.pdf

Based on experience and engineering judgment, modifications to this supplement may be requested. All requests for modifications will be directed to the Director of Traffic Engineering. The Director of Traffic Engineering will maintain a committee of headquarters and District Traffic Engineers to review any request for modifications and will make appropriate revisions to the supplement, notifying all users. The supplement will be maintained in an electronic format.

Chapter Two

MUTCD Regulatory Signs

Section 2B.14 Truck Speed Limit Plaque (R2-2P)

South Carolina does not prescribe special speed limit signs for trucks.

Section 2B.15 Night Speed Limit Plaque (R2-3P)

South Carolina does not prescribe special speed limit signs for night time conditions.

Section 2B.16 Minimum Speed Limit Plaque (R2-4P)

Traffic Engineering Guideline TG-4 provides guidance on the use of Minimum Speed Limit signs for different speed limits on interstate routes.

Section 2B.17 Higher Fines Signs and Plaque (R2-6P, R2-10, and R2-11)

In accordance with the South Carolina Code of Laws, the only area in which fines are increased for a special condition is in highway work zones. In accordance with the Code, the sign used in this case is G20-6-60.

Section2B.39 Selective Exclusion Signs

In addition to the signs listed in Figure 2B-11, Selective Exclusion Signs, the SCDOT has developed sign R5-10f-30 to reflect the language of the State Code of Laws for use on all ramps entering all interstates and other controlled access facilities.

Section 2B.46 Parking, Standing, and Stopping Signs (R7 and R8 Series)

In addition to the signs shown in Section 2B.46 of the MUTCD, Figure 2B-24 (R7 Series), and Figure 2B-25 (R8 Series), SCDOT has developed several additional No Parking type signs. These signs are contained in SCDOT Special Regulatory signs.

Section 2B.52 Traffic Signal Pedestrian and Bicycle Actuation Signs (R10-1 through R10-4, and R10-24 through R10-26)

There are several signs shown in Figure 2B-26 to advise pedestrians of the appropriate method to utilize pedestrian push buttons and pedestrian heads. The traffic engineer should choose the sign that best educates the pedestrian depending on the type of pedestrian actuation and signalization utilized.

http://iwww.dot.state.sc.us/TE2010/Products/Traffic-Engineering-Guidelines/tg4.pdf http:Section2B.39

Section 2B.54 No Turn on Red Signs (R10-11 Series, R10-17a, and R10-30)

The MUTCD has seven options for the No Turn on Red sign. SCDOT has chosen R10-11b as the standard No Turn on Red sign.

Section 2B.59 Weight Limit Signs (R12-1 to R12-5)

SCDOT has modified the MUTCD R12 series sign to include the message “Load Notice” to provide extra emphasis for notifying truckers of weight limit restrictions. Sign numbers R12-4.5-36 and R12-4.6-36 are contained in Chapter Two – SCDOT Special Regulatory Signs. In accordance with Engineering Directive Memorandum 11, a “New” plaque (W16-15P) should be used when a new or revised weight limit is posted.

http://iwww.dot.state.sc.us/StateHwyEngr/EDM-Live/EDM11.pdf

Regulatory Signs — All Residential Streets Plaque

R2-20-24 In order to limit speed limit signs in subdivisions, R2-20-24 may be used in con junction with the appropriate speed limit sign to indicate the legal speed limit on all roads within a subdivision.

Regulatory Signs — All Trucks Signs

R13-1AL-42, R13-1AR-42, R13-5-24

When temporary truck weighing stations are set up on primary routes the All Trucks Next Left (R13-1AL-42) or All Trucks Next Right (R13-1AR-42) shall be installed on the approaches to the temporary weighing station. A Truck Stop on Scales Sign (R13-5-24) may be used to direct trucks to the scale site.

Regulatory Signs — Authorized Vehicles Only

R5-22-36 R5-22-36 shall be used at all crossovers on the interstate or other controlled access facilities to notify motorists that these crossovers are to be used only by authorized vehicles and are not for general use. No other signs such as turn restriction signs should be used with this sign.

Regulatory Signs — Bridge Closure Notice

R11-8B-60 & R11-8.1-60 When a bridge is to be closed for a signifi cant time for repair or replacement a Bridge Closure Sign (R11-8B-60) shall be installed with a supplemental date plaque, (R11-8.1-60). Upon closure of the bridge appropriate detour and bridge closure signs shall be installed and this sign should be removed.

Regulatory Signs — Bridge Closure Notice

R11-8B-60 & R11-8.1-60

Regulatory Signs — Bridge Restriction Signs

R20-1-18, R20-1A-18 & R20-1C-24 In areas where there is a demonstrated problem with activities on or in the vicinity of a bridge or causeway R20-1-18 may be used to prohibit fi shing from a bridge, R20-1A-18 may be used to prohibit fi shing from the roadway shoulder, and R20-1C-24 may be used to prohibit diving or jumping from a bridge. These signs should be limited to areas where there is not an adequate shoulder to allow these activities to take place safely or where local law enforcement requests the sign.

Regulatory Signs — Buried Cable Notification

R10-35-9 In order to protect the Department’s investment in underground traffi c signal cables. R10-35-9 should be used at critical locations to advise utility companies, contractors, and maintenance personnel of the existence of buried cables and providing contact information.

Regulatory Signs — Closed No Trespassing

R25-1-60 R25-1-60 is to be installed at the entrances to the former parking areas on the interstate that are permanently closed. The sign should be erected where it is easily seen by a motorist attempting to enter the parking area.

Regulatory Signs — Compression Brakes Prohibited

R5-20-36 When a local governmental agency passes an ordinance to prohibit the use of compression brakes for noise purposes, R5-20-36 should be used at strategic locations to advise truckers of the local ordinance.

Regulatory Signs — Controlled Access Prohibitions

R5-10F-30 R5-10F-30 should be used at the entrance to all interstate ramps and ramps to other controlled access facilities to prohibit all slow moving forms of transportation. The sign has been modifi ed from the MUTCD version to appropriately match S.C. state laws.

Regulatory Signs — Crash Notice

R22-3-72 R22-3-72 may be used to advise motorists that they should move their vehicles from the travel way when they are involved in a minor crash with no injuries. This sign is to be used primarily in urban areas where minor crashes contribute to congestion and delays.

Regulatory Signs — Do Not Pass on Right

R4-1C-24 R4-1C-24 may be used to prohibit passing on the right where adequate pavement does not exist for passing without leaving the pavement.

Regulatory Signs — Drawbridge Closed

R11-2.5-60 To advise motorists of the temporary closure of a drawbridge, R11-2.5-60 should be installed at a point that allows motorists an opportunity to choose an alternate route.

Regulatory Signs — Drawbridge Signal

R10-13.5-36 When a standard traffi c signal is used to control traffi c on the approach to a draw bridge, the Drawbridge Signal Sign (R10-13.5-36) shall be installed between the signal heads.

Regulatory Signs — Keep Moving Change Lanes Later

R4-20-36 R4-20-36 may be used at channelized intersections where there is an adequate acceleration lane to accommodate right turn movements. This sign is generally used when a heavy right turn requires continuous fl ow for capacity purposes.

Regulatory Signs — Keep Right Except to Pass

R4-21-24 R4-21-24 is intended for use at the beginning of a passing lane developed on a two lane highway. It’s placement should be near the beginning of the passing lane.

Regulatory Signs — Left Turn Yield

R1-2.5-33 When a Left Turn Yield sign is determined to be appropriate, R1-2.5-33 shall be installed over a standard yield sign. The sign should be installed near the point where the left turn is to be executed.

Regulatory Signs — Load Notice Signs

R12-4.5-36 & R12-4.6-36 When a bridge inspection identifies that the allowed load on a bridge must be reduced in accordance with Engineering Directive Memorandum 11 R12-4.5-36 shall be erected at the bridge. If appropriate, Load Notice Ahead sign R12-4.6-36 should be placed at the nearest point that allows trucks to turn around or take an alternate route. Also in accordance with Engineering Directive Memorandum 11 a “New” plaque (W16-20-24) shall be installed when the load limits are initially placed or are changed.

R12-4.5-36

Regulatory Signs — Load Notice Signs

R12-4.5-36 & R12-4.6-36

R12-4.6-36

Regulatory Signs — Local Deliveries Only

R5-21-30 R5-21-30 may be used with the No Trucks sign (R5-2) when a local ordinance restricts truck traffi c to local deliveries only.

Regulatory Signs — Modifi ed Left Lane Must Turn Left Modifi ed Right Lane Must Turn Right

R3-7AL-24 & R3-7AR-24

In most situations sign number R3-7 from the MUTCD should be used to advise motorists that the left or right turn lane is a mandatory movement lane. R3-7AL-24 or R3-7AR-24 may be used in areas of limited right-of-way as a substitute for the R3-7 sign.

Regulatory Signs — Modifi ed Left Lane Must Turn Left Modifi ed Right Lane Must Turn Right

R3-7AL-24 & R3-7AR-24

Regulatory Signs — Move Over Sign

R22-4-108 Traffic Engineering Guideline 22 was developed in accordance with Section

56-5-1538(G) of the SC Code of Laws. The guideline describes the purpose of the law and the recommended placement of R22-4-108.

http://iwww.dot.state.sc.us/TE2010/Products/Traffic-Engineering-Guidelines/tg22.pdf

Regulatory Signs — No Parking Highway Side of . . .

R8-1.5-24 & R8-1.6-24 R8-1.5-24 may be used where sight distance may be restricted by vehicles parking within the right-of-way. The sign is used in conjunction with a painted yellow line an appropriate distance from the edge of the pavement. Where it is not appropriate to paint a yellow line, R8-1.6-24 may be used.

Regulatory Signs — No Parking Highway Side of . . .

R8-1.5-24 & R8-1.6-24

Regulatory Signs — No Parking on Shoulder

R8-1B-24 R8-1B-24 may be used where there is a documented safety or maintenance problem with vehicles parking on the shoulder of the road.

Regulatory Signs — No Parking on Sidewalk

R8-1A-24 R8-1A-24 may be used where there is a documented problem with vehicles parking on and restricting the use of a sidewalk.

Regulatory Signs — No Passing When Solid Yellow Line Is In Your Lane

R4-1.5-42 R4-1.5-42 may be used to reinforce the state law that prohibits passing across a solid yellow line. The use of this sign should be limited to areas where there is documented evidence of improper passing.

Regulatory Signs — Notice of Change to Yield Condition

R24-5-36 & R24-6-36 When changing the yield condition from one movement to another at a channelized intersection or interstate ramp, R24-5-36 should be erected approximately two weeks before making the change. When a new yield sign is to be installed, R24-6-36 should be erected in the area of the proposed new Yield sign.

Regulatory Signs — Notice of Change to Yield Condition

R24-5-36 & R24-6-36

Regulatory Signs — Notice of Proposed All Way Stop

R24-1-36 In accordance with Engineering Directive Memorandum 6, R24-1-36 shall be installed prior to converting a two way stop to an all way stop. The sign should be posted approximately two weeks prior to converting the intersection. All other provisions of Engineering Directive Memorandum 6 are to be followed.

http://iwww.dot.state.sc.us/StateHwyEngr/EDM-Live/EDM6.pdf

Regulatory Signs — Overhead Stop Panel

OHR1-1-96

When used to provide additional emphasis of a stop condition sign number

OHR1-1-96 shall be used. This sign is mounted overhead and may be supplemented by red fl ashing beacons.

Regulatory Signs — Parking Area Directional Signs

R8-20A-42, R8-20B-42 & R8-21(A through M)-60 R8-20A-42, R8-20B-42 and R8-21(A through M)-60 signs are intended for use in Rest Areas and Welcome Centers to direct various vehicles to the appropriate parking area.

Since the parking area designs are unique the District Traffi c Engineer should be consulted to determine the appropriate signs to be used at each location.

Regulatory Signs — Parking Time Limit Signs

R7-108.1-12 & R7-108.1-12 (ALT)

R7-108.1-12 or R7-108.1-12 (ALT) may be used to discourage long-term parking within a Welcome Center or Rest Area. It is not necessary to place the sign at each parking space. It should be placed under the Welcome Center or Rest Area activities sign (R7-10-36 or R7-10.1-36).

Regulatory Signs — Parking Time Limit Signs

R7-108.1-12 & R7-108.1-12 (ALT)

Regulatory Signs — Penalty for Littering Signs

R18-1-30 & R18-1-48 When used to advise motorists of the penalty for littering R18-1-30 should be used.

On interstates or major primary routes R18-1-48 may be used. The use of these signs should be limited to areas that have a demonstrated excessive littering problem.

Regulatory Signs — Penalty for Littering Signs

R18-1-30 & R18-1-48

Regulatory Signs — Right Turn On Red - Right Lane Only

R10-30A-42 On the approach to a signalized intersection with multiple right turn lanes, it may be necessary to restrict right turns on red to the right-most lane only. In this case, over head sign number R10-30A-42 should be used.

Regulatory Signs — Road Ends

R11-5-36 The regulatory Road Ends Sign (R11-5-36) should be used at the end of a permanently closed road in conjunction with barricades and Type III object markers, (OM4-3-18) as shown on the following drawing.

Regulatory Signs — Road Ends

R11-5-36

Regulatory Signs — Share the Road

R9-25-24 R9-25-24 may be used in high bicycling areas to advise motorists of the need to share the road with bicyclists. See Traffic Engineering Guideline T-8 for the guidelines for use.

http://iwww.dot.state.sc.us/TE2010/Products/Traffic-Engineering-Guidelines/tg8.pdf

Regulatory Signs — Special Lane Use Signs

R3-5.5L-30, R3-6.5-42 & R3-6.6-42

These signs may be used on the approach to an intersection to provide lane use information to motorists where needed to provide specialized lane assignments.

Regulatory Signs — Special No Parking Signs

R7-3.5-12, R7-3.5L-12, R7-3.5R-12, R7-3.6-12, R7-4A-12, R7-4AL-12, R7-4AR-12, R7-6.5-12, R7-11-12, R7-25R-12, R7-25L-12 & R7-25-12

The No Parking Except Sunday signs (R7-3.5-12, R7-3.5L-12 and R7-3.5R-12) may be used to re strict parking at all times except during Sunday church services.

R7-3.6-12 may be used when special circumstances make it undesirable to allow parking adjacent to school grounds.

The No Stopping or Standing signs (R7-4A-12, R7-4AL-12 and R7-4AR-12) may be used in areas where it is essential to prevent any stopping on the roadway.

R7-6.5-12 may be used in areas where the parking space is reserved for loading and unloading dur ing specifi ed hours.

R7-11-12 may be used to prohibit parking from the sign location to the nearest intersection.

R7-25R-12, R7-25L-12, and R7-25-12 may be used to designate bus parking areas.

R7-11-12, R7-25R-12, R7-25L-12 & R7-25-12

Regulatory Signs — Specialized Turn Prohibitions

R3-1.1-24, R3-1.3-24, R3-2.1-24, R3-2.3-24 & R3-4.1-24

When a turn is restricted on a time basis or movements are restricted for certain vehi cles the following signs may be used.

Regulatory Signs — State Law - Fasten Seat Belts

R22-1-24 & R22-1-48 R22-1-24 should be used on routes entering the state to advise motorists of the primary seat belt law in the state. This sign may also be used at other strategic locations throughout the state. R22-1-48 should be used on the interstate system and other controlled access facilities.

Regulatory Signs — State Law - Fasten Seat Belts

R22-1-24 & R22-1-48

Regulatory Signs — State Law-Headlights on when Raining

R22-2-24 & R22-2-48 R22-2-24 should be erected at the state line to advise motorists of the law that requires headlights to be on when raining. This sign may also be used at other strategic locations throughout the state. R22-2-48 should be used on the interstate system and other controlled access facilities.

Regulatory Signs — State Law-Headlights on when Raining

R22-2-24 & R22-2-48

Regulatory Signs — Stop for Stopped School Buses

R17-5-30 & R17-5A-30

South Carolina law Section 56-5-2770 requires that vehicles stop for a stopped school bus except that “the driver need not stop upon meeting a stopped school bus when traveling in the opposite direction on a multilane highway or multilane private road”. SCDOT has developed sign R17-5-30 for use on two lane roads and R17-5A-30 for use on multilane facilities to provide information to drivers that refl ect the current law. These signs should be used on a limited basis, with primary emphasis on paved median multilane routes, since the change in the law only affected non-divided multilane roadways.

R17-5-30

Regulatory Signs — Stop for Stopped School Buses

R17-5-30 & R17-5A-30

R17-5a-30

Regulatory Signs — Truck Prohibition Signing

R5-2D-36, R5-2C-36, R5-5A-24, R5-5B-24 & R5-5D-30

When a man datory truck route is established R5-2D-36 shall be installed on the prohibited route in a location visible to trucks. If necessary an advance sign, R5 2C-36, may be used to provide advanced warning to the trucks that truck restrictions are in place. When all trucks are prohibited from using a roadway due to bridge load restrictions or roadway conditions R5-5A-24 should be used. Sign number R5-5B-24 may be used in conjunction with a turn restriction sign to totally restrict trucks from using a road due to the above conditions. When through trucks only are restricted from a route as a result of a local ordinance R5-5D-30 should be used.

Regulatory Signs — Truck Restriction Signing

R4-30-132, R4-31-132, R4-33-84, R4-34-84, R4-35-84, R4-32-90

When restricting trucks from using designated lanes on the interstate system, R4-30-132, R4-31-132, R4-33-84, R4-34-84, and R4-35-84 should be used as appropriate.

R4-33-84 is the predominant sign to be used on an interstate with three lanes in each direction. R4-34-84 may be used on a three lane section of interstate when there is an auxiliary lane for a distance of 1/2 mile or more, such as a combination accel/decel lane. R4-35-84 may be used on a four or more lane interstate with an auxiliary lane as described above. R4-32-90 designates the end of the restrictions.

Regulatory Signs — Trucks – Right Turn From Right Lane Only

R4-5C-48 R4-5C-48 was designed for use for double right turn lanes where geometrics do not allow two trucks to turn simultaneously, and the preferred lane is the right lane.

Regulatory Signs — Welcome Center Activity Sign Rest Area Activity Sign

R7-10-36 & R7-10.1-36 R7-10-36 should be prominently displayed in a Welcome Center to advise of restrictions on the use of facilities. R7-10.1-36 fulfi lls this purpose for Rest Areas.

Regulatory Signs — Welcome Center Activity Sign Rest Area Activity Sign

R7-10-36 & R7-10.1-36

Regulatory Signs — Wide Load Sign

R12-8A-66 When there are cases that the lane widths are constricted by the placement of barrier walls or other channelizing devices or in cases where a permanent restriction exists, the No Wide Loads Beyond This Point, (R12-8A-66) should be used to restrict oversize vehicles. The sign should be placed to allow the vehicles to exit the roadway prior to entering the restricted area.

MUTCD Warning Signs

Section 2C.08 Advisory Speed Plaque (W13-1P)

South Carolina court rulings have held that a black and yellow advisory speed plaque constitutes the legal speed limit through the section of roadway covered by the advisory speed posted. For this reason, engineering judgment must be used to establish the need for the speed reduction and the advisory speed established. Care should be taken to not post an unreasonably low advisory speed. Advisory speeds should be checked periodically to determine whether conditions have changed since the advisory speed was posted and the speed should be adjusted if necessary. Traffic Engineering Guideline TG-6 provides guidance in using the ball-bank indicator to set advisory speeds.

When advisory speed plaques are used to supplement signs with a florescent yellow-green background, the advisory speed plaque shall be florescent yellow-green.

Section 2C.11 Combination Horizontal Alignment/Intersection Signs (W1-10 Series)

Figure 2C-1 shows six combination signs with a curve and an intersection. If a particular location requires a different configuration, Traffic Engineering can provide a layout which better depicts actual field conditions.

Section 2C.27 Low Clearance Signs (W12-2, W12-2a)

The use of these signs should be in accordance with the MUTCD. SCDOT has modified the layout of the W12-2a sign to facilitate the installation of the sign on concrete beam bridges. Refer to W12-2P-78 in the SCDOT Special Warning Signs for the layout.

Section 2C.32 Surface Condition Signs (W8-5, W8-7, W8-8, W8-11, W8-13, and W8-14)

Engineering Directive 43 details the Department’s policy concerning the installation of W8-13, based upon historical weather patterns and the likelihood of a bridge freezing.

Section 2C.38 Reduced Speed Limit Ahead Signs (W3-5 and W3-5a)

The MUTCD allows either of the two signs for warning of a reduction in the speed limit. SCDOT has adopted W3-5 for this purpose, when engineering judgment indicates the need for advance notice to comply with the reduced speed.

http://iwww.dot.state.sc.us/TE2010/Products/Traffic-Engineering-Guidelines/tg6.pdf http://iwww.dot.state.sc.us/TE2010/Products/Supplement/Warning/Modified_Bridge_Clearance.pdf http://iwww.dot.state.sc.us/StateHwyEngr/EDM-Live/EDM43.pdf

Section 2C.48 Traffic Signal Signs (W25-1, W25-2)

SCDOT signal design standards do not allow an extended green for opposing traffic on a normal basis. In certain railroad pre-emption applications the extended green may be necessary to provide adequate track clearance. In these cases, the W25-2 sign may be used to warn motorists of the special signal phasing.

Section 2C.49 Vehicular Traffic Warning Signs (W8-6, W11-1, W11-5, W11-5a, W11-8, W11-10,W11-11, W11-12P, W11-14, W11-15, and W11-15a)

Figure 2C-10 of the MUTCD lists several signs to warn of vehicular traffic that may enter or cross the roadway and depending on sight distance or other factors may require advance warning for the through roadway traffic. SCDOT has adopted a word message sign (W11-13-30, W11-13-36, or W11-13-48) for warning for trucks entering the highway. We have also adopted a word message for warning for a golf cart crossing (W11-15-30), and the word message Emergency Vehicles Entering (W11-21-36) instead of the Fire Truck Symbol sign (W11-8). When a special traffic signal is located at a fire station or other emergency vehicle facility the Emergency Signal Ahead Plaque (W11-12P) shall be mounted under the Emergency Vehicles Entering Sign. Layouts for the above special signs can be found in the SCDOT Special Warning Signs section.

Section 2C.58 Advance Street Name Plaque (W16-8P and W16-8aP)

The MUTCD allows the use of an Advance Street Name Plaque under any Intersection Warning sign or Advance Traffic Control sign. SCDOT has developed Traffic Engineering Guideline TG-11 for the use of this sign and the D3-2 series of advance street name signs.

Section 2C.60 Share the Road Plaque (W16-1P)

SCDOT has developed sign number R9-25-24 to remind motorists of the need to share the road with bicyclists. The layout for this sign can be found in the SCDOT Special Regulatory Sign section and in Traffic Engineering Guideline TG-8. The MUTCD allows the use of the share the road plaque to supplement other signs such as golf carts, horse-drawn vehicles or farm machinery. Any use of this plaque for this purpose should be approved by the Director of Traffic Engineering.

http://iwww.dot.state.sc.us/TE2010/Warning_Signs.html http://iwww.dot.state.sc.us/TE2010/Warning_Signs.html http://iwww.dot.state.sc.us/TE2010/Products/Traffic-Engineering-Guidelines/tg11.pdf http://iwww.dot.state.sc.us/TE2010/Regulatory_Signs.html http://iwww.dot.state.sc.us/TE2010/Products/Traffic-Engineering-Guidelines/tg8.pdf

Warning Signs — Church

W11-17-30 W11-17-30 may be used to warn motorists of a church entrance where the view to the entrance is restricted for motorists on the through highway.

Warning Signs — Congested Area

W3-20-36 & W3-20-48

Congested area signs may be used in areas where congestion is generally unexpected by the motoring public. Some examples of this type congestion are large fl ea markets open primarily on weekends and special events. In the case of a special event such as football games, county fairs, etc., the sign should be temporarily mounted and removed after the event. W3-20-36 should be used on minor roadways and W3-20-48 should be used on multilane routes.

Warning Signs — Congested Area

W3-20-36 & W3-20-48

Warning Signs — Deaf Child Plaque, Blind Child Plaque

W11-2.1P-24 & W11-2.2P-24

Where the Department receives notice that a deaf child or blind child lives in a neighborhood, the deaf child warning plaque (W11-2.1P-24) or blind child warning plaque (W11-2.2P-24) may be used in conjunction with a pedestrian crossing sign.

Traffic Engineering Guideline TG-15 provides specific requirements that must be met prior to installing these supplemental plaques.

http://iwww.dot.state.sc.us/TE2010/Products/Traffic-Engineering-Guidelines/tg15.pdf

Warning Signs — Deaf Child Plaque, Blind Child Plaque

W11-2.1P-24 & W11-2.2P-24

Warning Signs — Emergency Vehicles Entering

W11-21-36 W11-21-36 may be used to warn motorists in advance of fi re stations, police stations, or emergency medical services facilities, where emergency vehicles may enter the roadway.

Warning Signs — End Freeway

W6-9-48 The End Freeway sign (W6-9-48) is intended for use on a controlled access highway in advance of the location where that facility changes to a lower grade highway.

Warning Signs — Fog Prone Area

W8-17-48 W8-17-48 may be used where experience shows that fog may develop on a regular basis reducing visibility on a specifi c section of roadway.

Warning Signs — Golf Cart Crossing

W11-15-30 W11-15-30 may be used to warn motorists in advance of a location where golf carts frequently cross the roadway.

Warning Signs — Grooved Shoulders

W8-20P-12 & W8-20P-24

Where milled in rumble strips are used on a non-interstate or non-controlled access roadway and bicyclists can be expected, the grooved shoulders sign (W8-20P-12 or W8-20P-24) should be used under a W8-10 sign. The size will depend upon the type roadway.

Warning Signs — Groved Shoulders

W8-20P-12 & W8-20P-24

Warning Signs — Ground Mounted Prepare To Stop

W16-21-36 W16-21-36 is used only in special circumstances where it is necessary to advise motorists of an unexpected stop condition such as limited visibility approaching a railroad crossing. The Director of Traffi c Engineering must approve its use.

Warning Signs — Low Flying Aircraft

W11-20-30 Where planes cross a highway on a regular basis at an altitude low enough to startle or distract a driver, the Low Flying Aircraft sign (W11-20-30) may be used in advance of the crossing path.

Warning Signs — Modified Bridge Clearance

W12-2P-78

W12-2P-78 should be used to mark the vertical clearance for all bridge crossings on the interstate system and other bridges where required by the MUTCD. This sign has been modifi ed from the standard sign in the MUTCD to allow room to place the sign on concrete bridge beams. The clearance sign is to be centered over the centerline of the roadway.

Warning Signs — Modified Crossroads Signs

W2-1.5-30, W2-2.5L-30, W2-2.5R-30, W2-2.6L-30, W2-2.6R-30, W2-2.7L-30 W2-2.7R-30, W2-2.8L-30, & W2-2.8R-30

W2-1.5-30, W2-2.5L-30, W2-2.5R-30, W2-2.6L-30, W2-2.6R-30, W2-2.7L-30, W2-2.7R-30, W2-2.8L-30, and W2-2.8R-30 are all modifi ed crossroad signs designed to refl ect the actual geometry of multiple intersecting roads in close proximity.

W2-2.7R-30, W2-2.8L-30, & W2-2.8R-30

Warning Signs — New Plaque

W16-20-24

W16-20-24 should be used in accordance with Engineering Directive Memorandum 11 to advise of new or revised weight limits on bridges. This sign should also be used with a signal ahead sign when a new signal is installed in accordance with the Department’s Traffic Signal Design Guidelines, Chapter 3, and when converting a two-way stop intersection to a 4-way stop in accordance with Engineering Directive Memorandum 6.

http://iwww.dot.state.sc.us/StateHwyEngr/EDM-Live/EDM11.pdf http://iwww.dot.state.sc.us/TE2010/Products/Signal_Design_Guidelines/Chapter%203%20Signal%20Studies.pdf http://iwww.dot.state.sc.us/StateHwyEngr/EDM-Live/EDM6.pdf

Warning Signs — No Accel Lane

W3-2C-24 & W3-2C-36 The no accel lane sign should be used at ramp terminals where there is no acceleration lane to enter the crossing route. The sign is to be installed under the Yield Ahead sign. W3-2C-24 is used under the W3-2-36 and W3-2C-36 is used under W3-2-48.

Warning Signs — No Accel Lane

W3-2C-24 & W3-2C-36

Warning Signs — On Ramp

W13-4-24 W13-4-24 may be used to warn of a traffi c condition on a ramp where there is not suffi cient space on the ramp to place a warning sign.

Warning Signs — Overhead Emergency Vehicles Entering When Flashing

OHW11-21A-96

OHW11-21A-96 may be used in advance of a fi re station or other emergency vehicle driveway to warn of emergency vehicles entering the roadway. The sign is supplemented by amber fl ashing beacons, which are activated by the fi re station or emergency vehicle operator.

Warning Signs — Overhead Pedestrian Crossing When Flashing

OHW11-2.5-72

OHW11-2.5-72 may be used with fl ashers on the approach to a midblock crosswalk to warn of the presence of a pedestrian crossing. This sign is used when a push button is used to activate the fl ashers.

Warning Signs — Overhead Signal Ahead

OHW3-3A-108

OHW3-3A-108 may be with continuously operating fl ashers to advise motorists approaching a traffi c signal to use caution as they approach the signal.

Warning Signs — Overhead Signal Ahead When Flashing

OHW3-3A.5-108

OHW3-3A.5-108 may be used in advance of a traffi c signal on a high speed roadway or where there is limited sight distance approaching the signal to advise motorists that the signal is changing to or in a stop condition. The fl ashers are activated by the traffi c signal controller near the end of the main street green phase. The timings for the beginning of the fl ashing mode are based upon the approach speeds of the motorists.

Warning Signs — Overhead Truck Overturning Signs

OHW1-2AL-84 & OHW1-2AR-84

OHW1-2AL-84 or OHW1-2AR-84 may be used to warn truck drivers of the maximum safe speed to prevent overturning on a ramp. This sign is typically mounted on a bridge approaching the ramp, or on an overhead sign structure.

OHW1-2AL-84

Warning Signs — Overhead Truck Overturning Signs

OHW1-2AL-84 & OHW1-2AR-84

OHW1-2AR-84

Warning Signs — Plant Entrance

W11-16-30 W11-16-30 may be used where the view of a plant entrance is restricted to motorists on the through highway.

Warning Signs — Right Lane Exit Only

W9-7A-108 The Right Lane Exit Only sign may be used when a combination acceleration/ deceleration exists between two closely spaced interchanges and the lane ends at the exit ramp.

Warning Signs — Road Ends

W14-1.5-30 W14-1.5-30 should be used in advance of a permanent road closure as shown on the following typical.

Warning Signs — Road Ends

W14-1.5-30

Warning Signs — Road Subject To Flooding

W8-19-36

In accordance with Traffic Engineering Guideline TG-3, the Road Subject to

Flooding sign (W8-19-36) may be used where there is a documented area of flooding during heavy rains, usually at an underpass or a low area on the roadway. All economical attempts to correct the flooding problem should be studied before using the sign.

http://iwww.dot.state.sc.us/TE2010/Products/Traffic-Engineering-Guidelines/tg3.pdf

Warning Signs — Shoulder Narrows

W8-41-48 A Shoulder Narrows sign may be used on the approach to a bridge when the bridge has a narrower shoulder than the prevailing roadway shoulder. The primary use of this sign is on the interstate system with paved shoulders.

Warning Signs — Smoke

W8-14-30

In accordance with Traffic Engineering Guideline TG-2, the Smoke Sign (W8-14-30) is intended for temporary use to warn motorists in advance of an area where reduced visibility may result from the presence of smoke from nearby forest fires, controlled burn offs or other circumstances. When used it should be erected upon notification of the po tential for reduced visibility and removed when the hazardous situation has cleared.

http://iwww.dot.state.sc.us/TE2010/Products/Traffic-Engineering-Guidelines/tg2.pdf

Warning Signs — Special Truck Warning

W8-40-72 & W8-40.1-72 These signs were designed for a specifi c route to warn truckers of special roadway conditions on US 178. If similar conditions exist on other roadways the Director of Traffi c Engineering should be contacted for the wording and layouts for this type sign.

Warning Signs — Special Truck Warning

W8-40-72 & W8-40.1-72

Warning Signs — Strong Winds Possible

W8-18-30, W8-18-36 & W8-18-48

The Strong Winds Possible sign (W8-18-30, W8-18-36, or W8-18-48) may be used on the approaches to high-rise bridges to warn trucks, buses, and campers that high winds on the bridges could exist and could cause overturning of high profi le vehicles. The size will depend on the type and speed of the roadway.

Warning Signs — Trucks Entering Highway

W11-13-30, W11-13-36 & W11-13-48

W11-13-30, W11-13-36, or W11-13-48 may be used where a signifi cant number of trucks enter the roadway from a road or driveway or where sight distance is restricted to the driveway. A permanent sign should be used only when the trucks enter the highway on a daily basis.

Warning Signs — Tunnel

W11-22-30

The Tunnel sign may be used on the approach to an underpass when motorists cannot see from one side of the underpass to the other.

W11-22-30

Warning Signs — Water On Road

W8-15-30

In accordance with Traffic Engineering Guideline TG-3, the Water on Road sign

(W8-15-30) is intended for temporary use to warn motorists in advance of a section of road where water is standing or flowing on the roadway but the roadway remains passable. When used the sign should be erected as soon as the problem is known to exist and removed as soon as the water subsides. If the road is impassable, this sign should not be used and the road should be closed.

http://iwww.dot.state.sc.us/TE2010/Products/Traffic-Engineering-Guidelines/tg3.pdf

MUTCD Guide Signs

Section 2D.01 Scope of Conventional Road Guide Sign Standards

The MUTCD states that “The provisions of this Chapter shall apply to any road or street other than low-volume roads (as defined in Section 5A.01), expressways, and freeways.” SCDOT applies these standards to all roads, other than expressways or freeways, regardless of volume.

Section 2D.11 Design of Route Signs

The MUTCD provides the option of placing the state name on Interstate Route signs (M1-1). SCDOT will include the state name on Interstate shields when used in a sign assembly.

Section 2D.16 Auxiliary Signs for Alternative Routes (M4 Series)

Section 2D.16 figure 2D-4 of the MUTCD describes several auxiliary signs for use for alternate routes.

SCDOT does not officially designate any route as a by-pass. Therefore, M4-2 should not be used.

Section 2D.43 Street Name Signs (D3-1 or D3-1a)

Street name signing in South Carolina is the responsibility of local governments. The signs should conform to the requirements of the MUTCD. Traffic Engineering Guidelines TG-1 details the requirements for overhead street name signs where used.

Section 2D.55 National Scenic Byways Signs (D6-4 and D6-4a)

South Carolina has four National Scenic Byways: Ashley River Road, the Cherokee Foothills Scenic Highway, the Edisto Island National Scenic Byway, and the Savannah River Scenic Byway. Special signs have been designed for the Cherokee Foothills Scenic Highway and the Savannah River Scenic Byway and these layouts can be found in SCDOT Special Guide Signs. Engineering Directive Memorandum 7 details the Department’s policy concerning state and local scenic byways.

http://iwww.dot.state.sc.us/TE2010/Products/Traffic-Engineering-Guidelines/tg1.pdf http://iwww.dot.state.sc.us/TE2010/Guide_Signs.html http://iwww.dot.state.sc.us/StateHwyEngr/EDM-Live/EDM7.pdf

Section 2E.01 Guide Signs – Freeways and Expressways

SCDOT complies with the requirements of the MUTCD concerning the design and placement of Freeway and Expressway guide signs. In order to maintain consistency statewide, the design of these interstate type signs is coordinated through the Director of Traffic Engineering. Any requests to modify interstate type signs should be coordinated with the Director of Traffic Engineering.

Section 2I.01 General Service Signs

The MUTCD describes the General Service sign requirements if used. SCDOT has adopted a policy for Specific Service Signing (LOGO) and does not use General Service Signs on controlled access facilities with the exception of Hospital, Rest Area, Tourist Information, and Welcome Center signing.

Section 2J.01 Specific Service Signing

SCDOT has adopted a Specific Service Signing (LOGO) program. This program is administered by the Director of Traffic Engineering. Details of the program are available on the SCDOT website under the category of Traffic Information.

Section 2K.01 Tourist-Oriented Directional Signs (TODS)

Chapter 2K of the MUTCD describes the use of Tourist-Oriented Directional Signs when a state adopts this type program. Contact the Director of Traffic Engineering for details on SCDOT’s TODS program.

Section 2N.03 Evacuation Route Signs (EM-1 and EM-1a)

SCDOT has adopted a modified version of the hurricane evacuation route signing. The layout for this sign is included in SCDOT Special Guide Signs.

http://www.scdot.org/getting/logo_program.shtml http://iwww.dot.state.sc.us/TE2010/Guide_Signs.html

Guide Signs — Assisted Services Restroom

D9-40-30 The assisted services sign may be used at Welcome Centers or Rest Areas where a special restroom is available for special needs patrons.

Guide Signs — Bridge Route Numbers

OHB M1-1-48, OHB M1-4-48, OHB M1-4-60, OHB M1-5-48, OHB M1-5-60,

OHB M1-6-78 & OHB M1-6-84

The OHB M1 series of signs are used on bridges crossing the interstate to identify the crossing route. The sign should be located left of the clearance sign, with a minimum spacing of 8 feet between the route number sign and the left of the clearance sign.

OHB M1-1-48

OHB M1-6-78 & OHB M1-6-84

OHB M1-4-48

OHB M1-4-60

OHB M1-5-48

OHB M1-5-60

OHB M1-6-78

OHB M1-6-84

Guide Signs — Cardinal Direction Markers

M3-1-48, M3-2-48, M3-3-48 & M3-4-48 The Standard Highway Sign Manual has two sizes of Cardinal Directive Markers, 24” x 12” and 30” x 15”. SCDOT has added an additional size, 48” x 24”, for use with larger route number signs. M3-1-48 (north), M3-2-48 (east), M3-3-48 (south), and M3-4-48 (west) each in blue, green and white are to be used with M1 series route markers 48” or larger.

Guide Signs — Cherokee Foothills Scenic Highway

M1-20-15, M1-20-24 & M1-20-36 The Cherokee Foothills Scenic Highway is a nationally designated scenic route.

M1-20-15, M1-20-24, or M1-20-36 are the offi cial signs to designate this route. The size will be determined by the District Traffi c Engineer according to its use.

Guide Signs — Disaster Relief Vehicle Signs

EM-20A-102 & EM-20B-90

In the event of a major disaster, Welcome Centers or Rest Areas may be designated as staging areas for outside disaster relief vehicles. EM-20A-102 is used in advance of the exit for the staging area, and EM-20B-90 provides specifi c directions to the staging area.

Guide Signs — Disaster Relief Vehicle Signs

EM-20A-102 & EM-20B-90

Guide Signs — Heritage Corridor Signing

M1-23.1-24 & M1-23.2-24 SCDOT, in cooperation with the South Carolina Parks, Recreation and Tourism has established a system of Heritage Corridor Routes. The routes were established by Parks, Recreation and Tourism and the signing was provided by SCDOT. There are two general Heritage Corridor Routes, the Discovery Route (M1-23.1-24) and the Nature Route (M1-23.2-24). Any requests for changes to the existing routing should be forwarded to the Director of Traffi c Engineering for coordination with Parks, Recreation and Tourism.

M1-23.1-24

Guide Signs — Heritage Corridor Signing

M1-23.1-24 & M1-23.2-24

M1-23.2-24

Guide Signs — Historical Marker

D20-1-36 D20-1-36 may be used in rural areas in advance of a historical marker that has been approved by the Department of Archives and History.

Guide Signs — Hospital

D9-13A-96

The hospital supplemental panel is used on the interstate and other controlled access facilities for an approved hospital. The MUTCD provides the criteria for signing for hospitals in Section 2E.51, General Service signs. The panel is normally mounted under the one-mile advance sign.

Guide Signs — Hurricane Evacuation Signs

EM-1A-24 & EM-1B-24

When signing a designated hurricane evacuation route, EM-1A-24 shall be used.

EM-1B-24 shall be used for signing for offi cial evacuation shelters. Since emergency shelters change frequently, EM-1B-24 should not be permanently mounted. The local emergency preparedness offi cials are responsible for erecting, maintaining and removing the signs when not in use. M6 series blue arrows should be used as appropriate with these signs.

Guide Signs — Hurricane Evacuation Signs

EM-1A-24 & EM-1B-24

Guide Signs — Maintenance Facility Signs

D1-2B-4 & D1-2C-4 D1-2B-4 should be used to provide guidance to SCDOT maintenance facilities.

D1-2C-4 should be used to provide guidance to SCDOT section sheds. These signs should be provided at the last point of turn from the nearest primary route(s).

Guide Signs — Maintenance Facility Signs

D1-2B-4 & D1-2C-4

Guide Signs — On-Site Facility Signs

D1-2D-6 & D1-2E-6 These signs are recommended for use when providing signs identifying an SCDOT maintenance or construction facility. The signs are to be placed on the facility grounds.

Guide Signs — On-Site Facility Signs

D1-2D-6 & D1-2E-6

Guide Signs — Overhead Route Marker Assembly

OHM1-1-30

The MUTCD and the Standard Highway Signs Manual provides little guidance in the design of overhead route marker assemblies. Traffi c Engineering has developed layouts for various combinations of overhead route marker assemblies. Since there are over 100 different combinations, Traffi c Engineering will provide layouts upon request for any combination of interstate, US route, or SC route.

Guide Signs — Overmountain Victory Trail

M1-22-15 & M1-22-24 SCDOT partnered with the US Parks Service in signing the Overmountain Victory

Trail in York, Cherokee and Spartanburg Counties. M1-22-15 and M1-22-24 are used to mark the trail. The sign size will be determined by the District Traffi c Engineer according to its use.

Guide Signs — Overmountain Victory Trail

M1-22-15 & M1-22-24

Guide Signs — Public Golf Course

D21-1L-60 & D21-1R-60

Signs stating “Public Golf Course” with an appropriate arrow may be used to advise motorists of these facilities. The sign will not contain the name of the facility. Signs will be limited to the last point of turn from the nearest primary road. In order to qualify for signing, the following conditions must be met.

1. Course is open seven days a week except for holidays.

2. General public (non-members) can play any day by paying a reasonable daily green fee. Exceptions would be special events and tournaments where course is closed to non-participants.

3. Public players are entitled to use all facilities available to members.

Guide Signs — Public Golf Course

D21-1L-60 & D21-1R-60

Guide Signs — Ramp Number Markers

M1-R15L-20, M1-R15R-20, M1-RS15L-20 & M1-RS15R-20

The M1-15 series of signs are used to identify ramps for highway maintenance purposes. The attached memorandum from the Director of Maintenance details their use.

Guide Signs — Ramp Number Markers

M1-R15L-20, M1-R15R-20, M1-RS15L-20 & M1-RS15R-20

Guide Signs — Savannah River Scenic Highway

M1-21-15 & M1-21-24 The Savannah River National Scenic Highway is a nationally designated scenic route. M1-21-15 and M1-21-24 are the offi cial signs to designate this route. The sign size will be determined by the District Traffi c Engineer according to its use.

Guide Signs — Savannah River Scenic Highway

M1-21-15 & M1-21-24

Guide Signs — SC Route Marker

M1-5-30 & M1-5-45 SCDOT redesigned the South Carolina Route sign in 2007. M1-5-30 is to be used for conventional roads. M1-5-45 is to be used for expressways.

Guide Signs — SC Route Marker

M1-5-30 & M1-5-45

Guide Signs — Scenic Byway Signs

M1-24.1-24 & M1-24.2-24

In accordance with Engineering Directive 7, M1-24.1-24 is used to designate routes that are approved for scenic highway status by the State’s Scenic Highway Committee.

Where a road is designated by the Committee as a local byway, M1-24.2-24 is used.

http://iwww.dot.state.sc.us/StateHwyEngr/EDM-Live/EDM7.pdf

Guide Signs — Scenic Byway Signs

M1-24.1-24 & M1-24.2-24

Guide Signs — Secondary Route Markers

M1-15-20-D/F & M1-15-24-D/F Secondary Route Markers should be erected on each end of a secondary road and at all intersections with other secondary roads or numbered routes. The marker should be visible from both directions of travel approaching the intersection. M1-15-20-D/F and M1-15-24-D/F are double-faced signs with appropriate arrows.

Guide Signs — Special Directional Arrow

M6-20L-21-B & M6-20R-21-B

These signs were designed for an unusual turn to enter an interstate ramp. If special geometrics require a special sign, the Director of Traffi c Engineering can provide layouts.

M6-20L-21-B

Guide Signs — Special Directional Arrow

M6-20L-21-B & M6-20R-21-B

M6-20R-21-B

Guide Signs — Special Directional Arrow Assembly

M6-7.5R-21-W & M6-7.5L-21-W These Directional Arrow Auxiliary signs are in addition to the standard M5 and M6 signs shown in Figure 2D-5 of the MUTCD.

Guide Signs — Special Directional Arrow Assembly

M6-7.5R-21-W & M6-7.5L-21-W

Guide Signs — Text Telephone

D9-1.1-24 SCDOT has text telephones installed at all our rest areas and welcome centers. In order to advise the hearing impaired motorists of the availability of these special phones D9-1.1-24 is to be installed on the approaches to these facilities, generally on the left post of the advance guide sign.

Guide Signs — Toll

M4-20-24 & M4-20-30

The Toll sign is used in a sign assembly to advise motorists that the route assembly is directing motorists to a toll facility. The size of the sign should correspond to the size of the signs they supplement.

Guide Signs — Toll

M4-20-24 & M4-20-30

Guide Signs — Tourist Information Center

D9-10.4-48 D9-10.4-48 may be erected at an approved tourist information center. Traffic

Engineering Guideline TG-14 provides the criteria for determining whether a tourist information center qualifies for signing.

http://iwww.dot.state.sc.us/TE2010/Products/Traffic-Engineering-Guidelines/tg14.pdf http://iwww.dot.state.sc.us/TE2010/Products/Traffic-Engineering-Guidelines/tg14.pdf

Guide Signs — Wildlife Viewing Area

D7-3-5, RG-400-12 & RG-400-18

The SCDOT partners with the Department of Natural Resources to erect signs to designate areas where there are signifi cant opportunities to view wildlife. Any requests for new locations should be referred to the Department of Natural Resources. If the binocular symbol only is to be added to an existing sign, RG-400-12 or RG-400-18 may be used.

Information Signs — Adopt-A-Highway & Litter Pickup Ahead

I-10-1-48, I-10-2-48, I-10-2.1-48, I-10-3-48 & I-10-4-48 (A & B)

SCDOT has an established volunteer program for litter control named Adopt-A- Highway. The standard sign developed for this program is I-10-1-48. Supplemental signs that may be used under this sign are: I-10-2-48—Group Name, I-10-2.1-48—Section Available, and I-10-3-48—County Winner. Engineering Directive Memorandum 40 gives further information on this program.

I-10-4-48 is a fold-up sign. When pickup is active the sign reads Litter Pickup Ahead. The sign has black letters and border on an orange background.