The horizontal alignment signs may be used in advance of situations where the horizontal roadway alignment changes. If the change in horizontal alignment is approximately 270 degrees, such as on a cloverleaf interchange ramp, the 270-degree Loop sign may be used.

270 Degree Loop, Silhouette

The horizontal alignment signs may be used in advance of situations where the horizontal roadway alignment…

The Added Lane sign should be installed in advance of a point where two roadways converge and merging movements are not required. When possible, the Added Lane sign should be placed such that it is visible from both roadways; if this is not possible, an Added Lane sign should be placed on the side of each roadway.

Added Lane, Silhouette

The Added Lane sign should be installed in advance of a point where two roadways converge and merging…

Nonvehicular signs may be used to alert road users in advance of locations where unexpected entries into the roadway or shared use of the roadway by pedestrians, animals, and other crossing activities might occur. Pedestrian, Bicycle, and School signs and their related supplemental plaques may have a fluorescent yellowgreen background with a black legend and border.

Bicycle Crossing, Silhouette

Nonvehicular signs may be used to alert road users in advance of locations where unexpected entries…

Other bicycle warning signs such as the Hill sign may be installed on bicycle facilities to warn bicyclists of conditions not readily apparent. If used, other advance bicycle warning signs should be installed no less than 15 m (50 ft) in advance of the beginning of the condition.

Bicycle Hill, Silhouette

Other bicycle warning signs such as the Hill sign may be installed on bicycle facilities to warn bicyclists…

The Bicycle Surface Condition Warning sign may be installed where roadway or shared-use path conditions could cause a bicyclist to lose control of the bicycle. Signs warning of other conditions that might be of concern to bicyclists, including BUMP, DIP, PAVEMENT ENDS, and any other word message that describes conditions that are of concern to bicyclists, may also be used. A supplemental plaque may be used to clarify the specific type of surface condition.

Bicycle Surface Condition Warning, Silhouette

The Bicycle Surface Condition Warning sign may be installed where roadway or shared-use path conditions…

Nonvehicular signs may be used to alert road users in advance of locations where unexpected entries into the roadway or shared use of the roadway by pedestrians, animals, and other crossing activities might occur. Nonvehicular signs should be used only at locations where the crossing activity is unexpected or at locations not readily apparent.

Cattle Crossing, Silhouette

Nonvehicular signs may be used to alert road users in advance of locations where unexpected entries…

The horizontal alignment signs may be used in advance of situations where the horizontal roadway alignment changes. When the Hairpin Curve sign or the 270-degree Loop sign is installed, either a One-Direction Large Arrow sign or Chevron Alignment signs should be installed on the outside of the turn or curve.

Chevron Alignment, Silhouette

The horizontal alignment signs may be used in advance of situations where the horizontal roadway alignment…

A sign may be used in advance of an intersection to indicate the presence of an intersection and the possibility of turning or entering traffic. The Circular Intersection symbol sign accompanied by an educational TRAFFIC CIRCLE plaque may be installed in advance of a circular intersection.

Circular Intersection, Silhouette

A sign may be used in advance of an intersection to indicate the presence of an intersection and the…

"The horizontal alignment Turn signs may be used in advance of situations where the horizontal roadway alignment changes. The Turn sign or the Curve sign may be combined with the Cross Road sign or the Side Road sign to create a combination Horizontal Alignment/Intersection sign that depicts the condition where an intersection occurs within a turn or curve."

Combination Horizontal Alignment/Intersection, Silhouette

"The horizontal alignment Turn signs may be used in advance of situations where the horizontal roadway…

A Cross Road symbol sign may be used in advance of an intersection to indicate the presence of an intersection and the possibility of turning or entering traffic. The relative importance of the intersecting roadways may be shown by different widths of lines in the symbol. An advance street name plaque may be installed above or below an Intersection Warning sign.

Cross Road, Silhouette

A Cross Road symbol sign may be used in advance of an intersection to indicate the presence of an intersection…

Nonvehicular signs may be used to alert road users in advance of locations where unexpected entries into the roadway or shared use of the roadway by pedestrians, animals, and other crossing activities might occur. Nonvehicular signs should be used only at locations where the crossing activity is unexpected or at locations not readily apparent.

Deer Crossing, Silhouette

Nonvehicular signs may be used to alert road users in advance of locations where unexpected entries…

A Divided Highway Ends symbol sign should be used in advance of the end of a section of physically divided highway (not an intersection or junction) as a warning of two-way traffic ahead.

Divided Highway Ends, Silhouette

A Divided Highway Ends symbol sign should be used in advance of the end of a section of physically divided…

A Divided Highway symbol sign should be used on the approaches to a section of highway (not an intersection or junction) where the opposing flows of traffic are separated by a median or other physical barrier. The word message DIVIDED HIGHWAY or DIVIDED ROAD sign may be used as an alternate to the symbol sign.

Divided Highway, Silhouette

A Divided Highway symbol sign should be used on the approaches to a section of highway (not an intersection…

The Double Arrow sign may be used to advise road users that traffic is permitted to pass on either side of an island, obstruction, or gore in the roadway. Traffic separated by this sign may either rejoin or change directions.

Double Arrow, Silhouette

The Double Arrow sign may be used to advise road users that traffic is permitted to pass on either side…

The horizontal alignment Reverse Curve signs may be used in advance of situations where the horizontal roadway alignment changes. This sign indicates that two lanes in the road ahead curve to the right and then immediately curve back to the left.

Double Reverse Curve, Silhouette

The horizontal alignment Reverse Curve signs may be used in advance of situations where the horizontal…

The Double Reverse Curve sign may be used when the tangent distance between two reverse curves is less than 180 m (600 ft), thus making it difficult for a second Reverse Curve sign to be placed between the curves.

Double Reverse Curve, Silhouette

The Double Reverse Curve sign may be used when the tangent distance between two reverse curves is less…

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 sign should be used to better portray the actual geometric conditions to road users on the curving roadway.

Entering Roadway Added Lane, Silhouette

When an Added Lane sign is to be installed on a roadway that curves before converging with another roadway…

When a Merge sign is to be installed on an entering roadway that curves before merging with the major roadway, such as a ramp with a curving horizontal alignment as it approaches the major roadway, the Entering Roadway Merge sign should be used to better portray the actual geometric conditions to road users on the entering roadway.

Entering Roadway Merge, Silhouette

When a Merge sign is to be installed on an entering roadway that curves before merging with the major…

Nonvehicular signs may be used to alert road users in advance of locations where unexpected entries into the roadway or shared use of the roadway by pedestrians, animals, and other crossing activities might occur. Nonvehicular signs should be used only at locations where the crossing activity is unexpected or at locations not readily apparent.

Equestrian Crossing, Silhouette

Nonvehicular signs may be used to alert road users in advance of locations where unexpected entries…

Vehicular Traffic signs may be used to alert road users to locations where unexpected entries into the roadway by trucks, bicyclists, farm vehicles, emergency vehicles, golf carts, horse-drawn vehicles, or other vehicles might occur. These locations might be relatively confined or might occur randomly over a segment of roadway. Vehicular Traffic signs should be used only at locations where the road user's sight distance is restricted, or the condition, activity, or entering traffic would be unexpected. If the condition or activity is seasonal or temporary, the Vehicular Traffic sign should be removed or covered when the condition or activity does not exist.

Farm Equipment, Silhouette

Vehicular Traffic signs may be used to alert road users to locations where unexpected entries into the…

Vehicular Traffic signs may be used to alert road users to locations where unexpected entries into the roadway by trucks, bicyclists, farm vehicles, emergency vehicles, golf carts, horse-drawn vehicles, or other vehicles might occur. These locations might be relatively confined or might occur randomly over a segment of roadway. Vehicular Traffic signs should be used only at locations where the road user's sight distance is restricted, or the condition, activity, or entering traffic would be unexpected. If the condition or activity is seasonal or temporary, the Vehicular Traffic sign should be removed or covered when the condition or activity does not exist.

Farm Equipment, Silhouette

Vehicular Traffic signs may be used to alert road users to locations where unexpected entries into the…

Vehicular Traffic signs may be used to alert road users to locations where unexpected entries into the roadway by trucks, bicyclists, farm vehicles, emergency vehicles, golf carts, horse-drawn vehicles, or other vehicles might occur. These locations might be relatively confined or might occur randomly over a segment of roadway. Vehicular Traffic signs should be used only at locations where the road user's sight distance is restricted, or the condition, activity, or entering traffic would be unexpected. If the condition or activity is seasonal or temporary, the Vehicular Traffic sign should be removed or covered when the condition or activity does not exist. The Emergency Vehicle sign with the EMERGENCY SIGNAL AHEAD supplemental plaque shall be placed in advance of all emergency-vehicle traffic control signals.

Fire Station, Silhouette

Vehicular Traffic signs may be used to alert road users to locations where unexpected entries into the…

The Flagger symbol sign should be used in advance of any point where a flagger is stationed to control road users.

Flagger, Silhouette

The Flagger symbol sign should be used in advance of any point where a flagger is stationed to control…

Vehicular Traffic signs may be used to alert road users to locations where unexpected entries into the roadway by trucks, bicyclists, farm vehicles, emergency vehicles, golf carts, horse-drawn vehicles, or other vehicles might occur. These locations might be relatively confined or might occur randomly over a segment of roadway. Vehicular Traffic signs should be used only at locations where the road user's sight distance is restricted, or the condition, activity, or entering traffic would be unexpected. If the condition or activity is seasonal or temporary, the Vehicular Traffic sign should be removed or covered when the condition or activity does not exist.

Golf Cart Crossing, Silhouette

Vehicular Traffic signs may be used to alert road users to locations where unexpected entries into the…

Nonvehicular signs may be used to alert road users in advance of locations where unexpected entries into the roadway or shared use of the roadway by pedestrians, animals, and other crossing activities might occur. Nonvehicular signs should be used only at locations where the crossing activity is unexpected or at locations not readily apparent.

Handicap Crossing, Silhouette

Nonvehicular signs may be used to alert road users in advance of locations where unexpected entries…

<p>A Highway-Rail Grade Crossing Advance Warning sign shall be used on each highway in advance of every highway-rail grade crossing except in the following circumstances:<BR>A. On an approach to a highway-rail grade crossing from a T-intersection with a parallel highway, if the distance from the edge of the track to the edge of the parallel roadway is less than 30 m (100 ft), and signs are used on both approaches of the parallel highway; or<BR>B. On low-volume, low-speed highways crossing minor spurs or other tracks that are infrequently used and are flagged by train crews; or<BR>C. In business districts where active highway-rail grade crossing traffic control devices are in use; or<BR>D. Where physical conditions do not permit even a partially effective display of the sign.<BR></p>

Highway-Rail Grade Crossing Advance Warning, Silhouette

A Highway-Rail Grade Crossing Advance Warning sign shall be used on each highway in advance of every…

If the distance between the railroad tracks and a parallel highway, from the edge of the tracks to the edge of the parallel roadway, is less than 30 m (100 ft), this sign shall be installed on each approach of the parallel highway to warn road users making a turn that they will encounter a highway-rail grade crossing soon after making a turn, and a <a href="../../68200/68226/68226_488_W10-1_b.htm">Highway-Rail Grade Crossing Advance Warning</a> sign for the approach to the tracks shall not be required to be between the tracks and the parallel highway.

Highway-Rail Grade Crossing Advance Warning Cross Intersection, Silhouette

If the distance between the railroad tracks and a parallel highway, from the edge of the tracks to the…

If the distance between the railroad tracks and a parallel highway, from the edge of the tracks to the edge of the parallel roadway, is less than 30 m (100 ft), this sign shall be installed on each approach of the parallel highway to warn road users making a turn that they will encounter a highway-rail grade crossing soon after making a turn, and a <a href="../../68200/68226/68226_488_W10-1_b.htm">Highway-Rail Grade Crossing Advance Warning</a> sign for the approach to the tracks shall not be required to be between the tracks and the parallel highway.

Highway-Rail Grade Crossing Advance Warning T-Intersection, Silhouette

If the distance between the railroad tracks and a parallel highway, from the edge of the tracks to the…

If the distance between the railroad tracks and a parallel highway, from the edge of the tracks to the edge of the parallel roadway, is less than 30 m (100 ft), this sign shall be installed on each approach of the parallel highway to warn road users making a turn that they will encounter a highway-rail grade crossing soon after making a turn, and a <a href="../../68200/68226/68226_488_W10-1_b.htm">Highway-Rail Grade Crossing Advance Warning</a> sign for the approach to the tracks shall not be required to be between the tracks and the parallel highway.

Highway-Rail Grade Crossing Advance Warning T-Intersection, Silhouette

If the distance between the railroad tracks and a parallel highway, from the edge of the tracks to the…

The Hill sign should be used in advance of a downgrade where the length, percent of grade, horizontal curvature, and/or other physical features require special precautions on the part of road users.

Hill, Silhouette

The Hill sign should be used in advance of a downgrade where the length, percent of grade, horizontal…

Vehicular Traffic signs may be used to alert road users to locations where unexpected entries into the roadway by trucks, bicyclists, farm vehicles, emergency vehicles, golf carts, horse-drawn vehicles, or other vehicles might occur. These locations might be relatively confined or might occur randomly over a segment of roadway. Vehicular Traffic signs should be used only at locations where the road user's sight distance is restricted, or the condition, activity, or entering traffic would be unexpected. If the condition or activity is seasonal or temporary, the Vehicular Traffic sign should be removed or covered when the condition or activity does not exist.

Horse-Drawn Vehicles, Silhouette

Vehicular Traffic signs may be used to alert road users to locations where unexpected entries into the…

The Lane Ends symbol sign, should be used to warn of the reduction in the number of traffic lanes in the direction of travel on a multi-lane highway.

Lane Ends, Silhouette

The Lane Ends symbol sign, should be used to warn of the reduction in the number of traffic lanes in…

The horizontal alignment Curve may be used in advance of situations where the horizontal roadway alignment changes.

Left Curve, Silhouette

The horizontal alignment Curve may be used in advance of situations where the horizontal roadway alignment…

The horizontal alignment Turn may be used in advance of situations where the horizontal roadway alignment changes. This specific sign indicates that there is a 90&deg; left turn on the road ahead.

Left Turn, Silhouette

The horizontal alignment Turn may be used in advance of situations where the horizontal roadway alignment…

If the highway profile conditions are sufficiently abrupt to create a hang-up situation for long wheelbase vehicles or for trailers with low ground clearance, the Low Ground Clearance Highway-Rail Grade Crossing sign should be installed in advance of the highway-rail grade crossing.

Low Ground Clearance Highway-Rail Grade Crossing, Silhouette

If the highway profile conditions are sufficiently abrupt to create a hang-up situation for long wheelbase…

A Merge sign may be used to warn road users on the major roadway that merging movements might be encountered in advance of a point where lanes from two separate roadways converge as a single traffic lane and no turning conflict occurs. A Merge sign may also be installed on the side of the entering roadway to warn road users on the entering roadway of the merge condition. The Merge sign should be installed on the side of the major roadway where merging traffic will be encountered and in such a position as to not obstruct the road user's view of entering traffic.

Merge, Silhouette

A Merge sign may be used to warn road users on the major roadway that merging movements might be encountered…

The horizontal alignment signs may be used in advance of situations where the horizontal roadway alignment changes. A One-Direction Large Arrow sign may be used on the outside of the turn or curve. When the Hairpin Curve sign or the 270-degree Loop sign is installed, either a One-Direction Large Arrow sign or Chevron Alignment signs should be installed on the outside of the turn or curve.

One-Direction Large Arrow, Silhouette

The horizontal alignment signs may be used in advance of situations where the horizontal roadway alignment…

Nonvehicular signs may be used to alert road users in advance of locations where unexpected entries into the roadway or shared use of the roadway by pedestrians, animals, and other crossing activities might occur. Pedestrian, Bicycle, and School signs and their related supplemental plaques may have a fluorescent yellowgreen background with a black legend and border.

Pedestrian Crossing, Silhouette

Nonvehicular signs may be used to alert road users in advance of locations where unexpected entries…

The Playground sign may be used to give advance warning of a designated children's playground that is located adjacent to the road. The Playground sign may have a fluorescent yellowgreen background with a black legend and border.

Playground, Silhouette

The Playground sign may be used to give advance warning of a designated children's playground that is…

The horizontal alignment Reverse Curve signs may be used in advance of situations where the horizontal roadway alignment changes. This sign indicates that the road ahead curves to the left and then immediately curves back to the right.

Reverse Curve, Silhouette

The horizontal alignment Reverse Curve signs may be used in advance of situations where the horizontal…

The horizontal alignment Reverse Curve signs may be used in advance of situations where the horizontal roadway alignment changes. This sign indicates that the road ahead curves to the right and then immediately curves back to the left.

Reverse Curve, Silhouette

The horizontal alignment Reverse Curve signs may be used in advance of situations where the horizontal…

The horizontal alignment Reverse Turn signs may be used in advance of situations where the horizontal roadway alignment changes. This sign indicates that there is a left turn ahead, immediately followed by a right turn.

Reverse Turn, Silhouette

The horizontal alignment Reverse Turn signs may be used in advance of situations where the horizontal…

The horizontal alignment Reverse Turn signs may be used in advance of situations where the horizontal roadway alignment changes. This sign indicates that there is a right turn ahead, immediately followed by a left turn.

Reverse Turn, Silhouette

The horizontal alignment Reverse Turn signs may be used in advance of situations where the horizontal…

The horizontal alignment Curve may be used in advance of situations where the horizontal roadway alignment changes.

Right Curve, Silhouette

The horizontal alignment Curve may be used in advance of situations where the horizontal roadway alignment…

The horizontal alignment Turn may be used in advance of situations where the horizontal roadway alignment changes. This specific sign indicates that there is a 90&deg; right turn on the road ahead.

Right Turn, Silhouette

The horizontal alignment Turn may be used in advance of situations where the horizontal roadway alignment…

The School Advance Warning assembly should be installed in advance of locations where school buildings or grounds are adjacent to the highway, except where a physical barrier such as fencing separates school children from the highway. The School Advance Warning assembly shall be used in advance of any installation of the School Crosswalk Warning assembly, or in advance of the first installation of the School Speed Limit assembly. If used, the School Advance Warning assembly shall be installed not less than 45 m (150 ft) nor more than 210 m (700 ft) in advance of the school grounds or school crossings. If used, the School Advance Warning assembly shall consist of a School Advance Warning sign supplemented with a plaque with the legend AHEAD or XXX METERS (XXX FEET) to provide advance notice to road users of crossing activity.

School Advance Warning, Silhouette

The School Advance Warning assembly should be installed in advance of locations where school buildings…

A Side Road symbol sign may be used in advance of an intersection to indicate the presence of an intersection and the possibility of turning or entering traffic. The relative importance of the intersecting roadways may be shown by different widths of lines in the symbol. An advance street name plaque may be installed above or below an Intersection Warning sign.

Side Road, Silhouette

A Side Road symbol sign may be used in advance of an intersection to indicate the presence of an intersection…

A Side Road symbol sign may be used in advance of an intersection to indicate the presence of an intersection and the possibility of turning or entering traffic. The relative importance of the intersecting roadways may be shown by different widths of lines in the symbol. An advance street name plaque may be installed above or below an Intersection Warning sign.

Side Road, Silhouette

A Side Road symbol sign may be used in advance of an intersection to indicate the presence of an intersection…

The Advance Traffic Control symbol signs includes the Signal Ahead sign. These signs shall be installed on an approach to a primary traffic control device that is not visible for a sufficient distance to permit the road user to respond to the device. The visibility criteria for a traffic control signal shall be based on having a continuous view of at least two signal faces for the distance specified.

Signal Ahead, Silhouette

The Advance Traffic Control symbol signs includes the Signal Ahead sign. These signs shall be installed…

The Double Reverse Curve sign may be used when the tangent distance between two reverse curves is less than 180 m (600 ft), thus making it difficult for a second Reverse Curve sign to be placed between the curves.

Single Reverse Curve, Silhouette

The Double Reverse Curve sign may be used when the tangent distance between two reverse curves is less…

The Skewed Crossing sign may be used at a skewed highway-rail grade crossing to warn drivers that the railroad tracks are not perpendicular to the highway. If the Skewed Crossing sign is used, the symbol should show the direction of the crossing (near left to far right as shown in Figure 8B-5, or the mirror image if the track goes from far left to near right). If the Skewed Crossing sign is used where the angle of the crossing is significantly different than 45 degrees, the symbol should show the approximate angle of the crossing.

Skewed Crossing, Silhouette

The Skewed Crossing sign may be used at a skewed highway-rail grade crossing to warn drivers that the…

The Slippery When Wet sign may be used to warn that a slippery condition might exist.

Slippery When Wet, Silhouette

The Slippery When Wet sign may be used to warn that a slippery condition might exist.

Nonvehicular signs may be used to alert road users in advance of locations where unexpected entries into the roadway or shared use of the roadway by pedestrians, animals, and other crossing activities might occur. Nonvehicular signs should be used only at locations where the crossing activity is unexpected or at locations not readily apparent.

Snowmobile Crossing, Silhouette

Nonvehicular signs may be used to alert road users in advance of locations where unexpected entries…

The Advance Traffic Control symbol signs includes the Stop Ahead sign. These signs shall be installed on an approach to a primary traffic control device that is not visible for a sufficient distance to permit the road user to respond to the device. The visibility criteria for a traffic control signal shall be based on having a continuous view of at least two signal faces for the distance specified.

Stop Ahead, Silhouette

The Advance Traffic Control symbol signs includes the Stop Ahead sign. These signs shall be installed…

A Storage Space sign supplemented by a word message storage distance sign should be used where there is a highway intersection in close proximity to the highway-rail grade crossing and an engineering study determines that adequate space is not available to store a design vehicle(s) between the highway intersection and the train dynamic envelope. The Storage Space signs should be mounted in advance of the highway-rail grade crossing at an appropriate location to advise drivers of the space available for vehicle storage between the highway intersection and the highway-rail grade crossing.

Storage Space, Silhouette

A Storage Space sign supplemented by a word message storage distance sign should be used where there…

If the condition indicated by a warning sign is located on an intersecting road and the distance between the intersection and condition is not sufficient to provide adequate advance placement of the warning sign, a Supplemental Arrow plaque should be used below the warningsign.

Supplemental Arrow, Silhouette

If the condition indicated by a warning sign is located on an intersecting road and the distance between…

If the condition indicated by a warning sign is located on an intersecting road and the distance between the intersection and condition is not sufficient to provide adequate advance placement of the warning sign, a Supplemental Arrow plaque should be used below the warningsign.

Supplemental Arrow, Silhouette

If the condition indicated by a warning sign is located on an intersecting road and the distance between…

If the condition indicated by a warning sign is located on an intersecting road and the distance between the intersection and condition is not sufficient to provide adequate advance placement of the warning sign, a Supplemental Arrow plaque should be used below the warningsign.

Supplemental Arrow, Silhouette

If the condition indicated by a warning sign is located on an intersecting road and the distance between…

A T-Symbol sign may be used in advance of an intersection to indicate the presence of an intersection and the possibility of turning or entering traffic. The relative importance of the intersecting roadways may be shown by different widths of lines in the symbol. An advance street name plaque may be installed above or below an Intersection Warning sign.

T-Symbol, Silhouette

A T-Symbol sign may be used in advance of an intersection to indicate the presence of an intersection…

The horizontal alignment Reverse Curve signs may be used in advance of situations where the horizontal roadway alignment changes. This sign indicates that three lanes in the road ahead curve to the right and then immediately curve back to the left.

Triple Reverse Curve, Silhouette

The horizontal alignment Reverse Curve signs may be used in advance of situations where the horizontal…