Pennsylvania MUTCD

Stop Sign Removed from Side Street (R1-4)

Justification:  1.  The Stop Sign Removed from Side Street sign shall be authorized for use to advise local drivers that the stop sign on the side street has been removed.  The R1-4 sign should be removed after six weeks.
2.  In the particular case when stop signs are to be reversed, a temporary multiway stop intersection should normally first be authorized for approximately six weeks for those intersections with a combined average daily traffic volume in excess of 500 vehicles.  After the original stop signs are removed, the R1-4 sign shall be authorized for six weeks beneath remaining stop signs.
Placement:  When used, the R1-4 sign shall be placed beneath appropriate stop signs for educational purposes.

Preferential Highway (R3-16)

Justification:  a.  The Preferential Highway sign shall be authorized for use in advance of a section of highway or a ramp to an expressway or freeway where travel on the specified highway is restricted to a specific class or classes of vehicles and/or to vehicles having a minimum of occupants.
Format:  The message of Sign R3-16 should have the following sequence.
TOP LINES = applicable vehicles (such as BUSES ONLY, BUSSES AND CARPOOLS, CARPOOLS ONLY)
THIRD LINE = Minimum number of persons in the vehicle
BOTTOM LINE = applicable time and day (such as 6 a.m. - 10 p.m. MON-FRI)
An additional message may be added to the top of the sign to identify the preferential highway or ramp and the distance to the restrictions.
Placement:  The R3-16 sign may be post mounted at the side of the road or overhead in advance of the restricted highway or ramp to the restricted highway.

All Turns From Right Lane (R4-15)

Justification:  The All Turns From Right Lane sign shall be authorized for use on those multilane highways where left turns and U-turns are prohibited but where these movements can be indirectly accomplished by making a right turn.
Placement:  The R4-15 sign shall be placed at intervals throughout the section of highway where left turns and U-turns are prohibited and in advance of all right-hand off-ramps where left turns and U-turns can be indirectly accomplished by making a right turn.
Size:  The standard size R4-15 sign shall be 96 inches by 48 inches.  The 48-inch by 60-inch size may be used where there is insufficient lateral space to erect the larger size.

All Turns (R4-16)

Justification:  The All Turns sign shall be authorized to indicate the location of a right-hand off-ramp where left turns and U-turns are prohibited but may be indirectly accomplished by making a right-turn.  Street or road names, or traffic route numbers may be included directly above this sign message.
Placement:  The R4-16 sign shall be placed in the gore of the off-ramp.

Emergency and Authorized Vehicles Only (R5-4)

Justification:  The Emergency and Authorized Vehicles Only sign shall be authorized for use to mark median crossovers for the use indicated on limited access highways.  This sign should be placed on the far side of the crossover.

Semitrailer Minimum Underclearance (R5-7)

Justification:  The Semitrailer Minimum Underclearance sign shall be authorized when it has been determined that it is necessary to prohibit semitrailers with an underclearance less than a specified dimension.  This restriction would be applicable on crest vertical curves, especially over a railroad grade crossing.
Placement:  The R5-7 sign should be located immediately in advance of the section of highway to which it applies.  In the case of an extended distance between the restriction and the nearest intersections, a second sign should be placed not more than 25 feet beyond the intersection so as to be clearly visible from all vehicles about to enter the highway with the restriction.

Runaway Vehicles Only (R45-8)

Justification:  The Runaway Vehicles Only sign is authorized for use on runaway truck ramps to prohibit vehicles other than runaway vehicles from using the ramp.  The Advance Runaway Truck Ramp Sign (W7-3) and the Runaway Truck Ramp Sign (W7-3-1) should also be used to provide advance warning of the ramp.
Placement:  The R5-8 sign shall be placed near the entrance of the ramp.  The sign should be placed on the right side of the ramp and set at an angle of approximately 45^o with a line parallel to the edge of the ramp.

Snow Emergency Route (R4-16)

The Snow Emergency Route sign shall be authorized for use at the entrance to limited access highways which have officially been designated as snow emergency routes in accordance with Chapter 213 (relating to snow emergency routes).

Flammable Liquid and Explosive Loads Prohibited in Tunnel (R5-20)

Justification:  The Flammable Liquid and Explosive Loads Prohibited in Tunnel sign shall be authorized for use when vehicles carrying flammable liquid or explosive loads are prohibited within a tunnel.
Placement:  The R5-20 sign shall be placed in advance of the tunnel entrance.

Flammable Liquid and Explosive Loads Must Use Next Exit (R5-20-1)

Justification:  The Flammable Liquid and Explosive Loads Must Use Next Exit sign shall be authorized for use in advance of a designated section of limited access highway where vehicles carrying flammable liquid or explosive loads are prohibited.  It shall be used in conjunction with Flammable Liquid and Explosive Loads Prohibited in Tunnel sign.
Placement:  The R5-20-1 sign shall be placed in advance of the last exit prior to entering the section of highway where said vehicles are prohibited.  Care should be taken in selecting the exit to assure there are no restrictions affecting the vehicles that must use it.

Temporary No Parking (R7-10)

Justification:  The Temporary No Parking sign shall be authorized for use as provided in §§ 211.231-211.233 of this title (relating to justification and description; placement; and size) when local authorities deem it necessary to prohibit parking for a short time on any street or highway.  Care shall be taken to see that the signs are removed when their need no longer exists.
Placement:  Since the use of this sign is temporary it may be made of cardboard and attached to poles, trees, or other existing supports at convenient heights, angles, and locations.

No Stopping On Bridge (R8-20)

Justification:  The No Stopping on Bridge sign shall be authorized for use in rural areas as provided in § § 615.221-615.223 of this Title (relating to stopping, standing, and parking signs) when motorists have a tendency to stop or park on the bridge for purposes other than emergencies.
Size:  The standard size for expressways shall be 30 inches by 24 inches.

Turn With Care (R10-10-2)

Justification:  The Turn With Care sign shall be authorized for use in combination with a Left Turn Signal sign (R10-10) as the second message in an internally illuminated, changeable message sign, and is to be located close to a specific signal controlling a left-turning movement when the left-turning movement is exclusive during one phase but not denied in another phase of the traffic-control signal operation.
Size:  The standard size of R10-10-2 shall be 24 inches by 30 inches.  The standard size for overhead installations shall be 30 inches by 36 inches.

Opposing Traffic Has Extended Green (R10-20)

Justification:  The Opposing Traffic Has Extended Green shall be authorized for use with a traffic-control signal installation where opposing traffic has a lagging green.  It shall be used to advise the motorist facing the sign that the opposing traffic will continue to move although he has a red signal indication.
Placement:  The R10-20 sign should be near and facing the approach lanes of traffic, which might presumably conflict with traffic entering the intersection on a lagging green signal indication, on a signal post or pedestal beneath the signal.  It may also be placed in an overhead position on a signal mast arm or span wire.

Closed For The Season (R11-6)

Justification:  The Closed For The Season sign shall be authorized for use on non-Interstate Rest Areas which have been closed for the season.
Placement:  The R11-6 sign should be placed on a reflectorized red and white striped barricade closing the area.

Trucks Keep Off Shoulder (R11-7)

Justification:  The Trucks Keep Off Shoulder sign shall be authorized at locations where trucks frequently travel on the shoulder but the shoulder is not capable of supporting truck traffic.
Placement:  The R11-7 sign shall be erected immediately in advance of and at intervals throughout the restricted area.

Street Closed (       ) to (       ) (R11-10)

Justification:  The Street Closed (       ) to (       ) sign shall be authorized for use where the street is closed by local authorities for special activities.  Road may be used in place of Street.
Placement:  The R11-10 sign shall be placed on a Type III barricade in the center of the street.

Snowmobile Road-Closed To All Other Vehicles (R11-11)

Justification:  The Snowmobile Road-Closed To All Other Vehicles sign shall be authorized for use when a street or highway has been closed to all vehicular traffic other than snowmobiles and designated as a snowmobile road by the governmental agency having jurisdiction over the street or road.
Placement:  The R11-11 sign should be mounted on a Type III, red and white reflectorized barricade in the center of the roadway, or if pavement width does not permit, at the right side of the roadway.

Wet Paint (R16-5)

Justification:  The Wet Paint sign shall be authorized for use by pavement marking crews to inform motorists that pavement markings are wet and that they may not drive over them.
Placement:  The R16-5 sign should be placed beyond intersections along the route being marked.