Comprehensive Guide to Temporary Road Signs, Signals, and Markings

Temporary Command Signs

Temporary command signs establish specific requirements or directions that drivers must follow in temporary road situations. These signs include:

Temporary park: Indicated by a blue square with a white "P".
Turn right: Indicated by a white arrow pointing to the right on a blue circular background.
Motor cars only: A command sign restricting road use to motor cars.
Construction vehicles only: Restricts use specifically to construction machinery.
Abnormal vehicles only: Restricts use to vehicles of abnormal size or weight.
Agricultural vehicles only: Restricts use to tractors and other farming equipment.
Switch headlamps: A command for drivers to turn on vehicle lights.
Pedestrians only: Restricts the path or lane to foot traffic.
Minimum speed: Indicated by a white number ( $50$ ) on a blue circular background, requiring vehicles to maintain at least a speed of $50\,km/h$ .
Keep left: A white arrow pointing diagonally down-left.
Keep right: A white arrow pointing diagonally down-right.
Proceed left only: A white arrow pointing horizontally to the left.
Pedal cycles only: Restricts use to bicycles.
Pedal cycles and pedestrians only: Restricts use to both bicycles and foot traffic.
Minibuses only: Restricts use to minibus-style vehicles.
Buses and minibuses: Restricts use to larger passenger transport vehicles.
Roundabout: Indicates a traffic circle where command follows the flow of the circle.
Buses only: Restricts use to large passenger buses.
Taxis only: Restricts use to taxi vehicles.
Tour buses only: Restricts use to registered tour buses.
Animal drawn vehicles only: Restricts use to carts or wagons pulled by animals.

Temporary Prohibition Signs

Temporary prohibition signs indicate actions or vehicle types that are strictly forbidden. Significant examples include:

Speed limit: A red circle containing the number $100$ , setting the maximum speed at $100\,km/h$ .
Mass limit: Restricts vehicles exceeding a specific weight, such as $12\,t$ .
Height limit: Restricts vehicles higher than a specific value, such as $4.42\,m$ .
Length limit: Restricts vehicles longer than a specific value, such as $15\,m$ .
No unauthorized vehicles: Prohibits vehicles without specific permission.
No left turn ahead: Prohibits turning left at the upcoming intersection.
No right turn: Prohibits turning right.
No overtaking: Prohibits passing other vehicles.
No overtaking by goods vehicles: Specifically prohibits trucks or goods-carrying vehicles from passing.
No parking: Prohibits leaving a vehicle unattended at the side of the road.
No stopping: Prohibits any cessation of movement, even for brief periods.

Temporary Reservation Signs

These signs designate specific areas or lanes reserved for certain vehicle classes during temporary roadworks or events:

Motor cars: Reserved parking or lane for standard cars.
Construction vehicles: Reserved for site equipment.
Taxi: Reserved for licensed taxi operations.
Mini-bus: Reserved for minibus transport.
Goods vehicle: Reserved for commercial delivery or transport trucks.
Ambulance: Reserved for medical emergency vehicles.
Parking for vehicles conveying dangerous goods: Specifically designated for hazardous materials transport.
Police vehicles: Reserved for law enforcement.
Emergency vehicles: Reserved for general first responders.

Temporary Warning Signs

Warning signs alert drivers to upcoming hazards, changes in road conditions, or traffic control measures. They are typically triangular with a red border and a yellow background.

Intersections and Junctions

Crossroad T-Junction: Indicates a primary intersection ahead.
Side road junction (from right): Warns of a road merging from the right side.
Staggered junctions: Warns of two junctions in close proximity on opposite sides.
Sharp junction (to Left): Warns of an acute intersection to the left.
Sharp junction (From right): Warns of an acute intersection from the right.

Road Characteristics and Obstacles

Sharp curve (to right): Indicates a severe bend in the road.
Combined curves: Warns of multiple bends in succession.
Two-way traffic: Indicates that the road is no longer one-way.
Two-way traffic crossroad: Warns of bi-directional traffic at a crossroad.
Right lane ends: Warns that the rightmost lane is terminating.
Concealed driveway: Warns of a driveway that is difficult to see from the main road.
Surface step, left down: Indicates a sudden vertical drop in the road surface on the left side.
Surface step, right down: Indicates a sudden vertical drop in the road surface on the right side.
Road narrows from both sides: Warns that the total roadway width is decreasing.
Soft shoulder (Left): Warns that the left shoulder is made of loose material.
Gravel road begins: Indicates a transition from paved to unpaved surface.
Slippery road: Warns of surfaces with reduced traction.
Uneven roadway: Warns of bumps or depressions in the road.
One vehicle width structure: Indicates a narrow bridge or passage allowing only one car at a time.
Falling rocks (from left): Warns of potential debris falling onto the roadway.
Loose stones: Warns of gravel or stones that may be kicked up by tires.

Hazards and Operations

Traffic signal ahead: Warns of upcoming traffic lights.
Traffic control "stop" ahead: Warns of a stop sign reaching the driver's view.
Traffic control "yield" ahead: Warns of a yield sign.
Traffic control ahead Pointsman: Warns that a person (pointsman) is directing traffic.
Scholar patrol ahead: Warns of school children crossing directed by a patrol.
Stop/Go control ahead: Indicates manual traffic control using Stop/Go paddles.
Emergency flashing light / Temporary police flashing light: Warns of active emergency or law enforcement presence.
Accident ahead: Warns of a recent vehicle collision blocking the path.
Roadworks ahead: Indicates construction activity on or near the road.
Grader working: Warns of slow-moving road maintenance machinery.
Heavy/construction vehicles crossing: Warns of large vehicles entering or exiting the roadway.
General warning (AW-PSWT): A generic hazard triangle used when no specific symbol applies.

Temporary Hazard Marker Signs

These signs guide drivers through specific path changes or mark dangerous obstacles:

TW401: Delineator plate, located on the left.
TW402: Delineator plate, located on the right.
TW405: Sharp curve chevron, pointing to the right.
TW406: Sharp curve chevron, pointing to the left.
TW407: Triple sharp curve chevron, pointing to the right (used for higher speeds or sharper bends).
TW408: Triple sharp curve chevron, pointing to the left.
TW410: Dead end or road closed chevron.
TW411: Temporary barricade used to block off entire sections of the road.
TW412: Alert indicating that the Traffic Signal is out of order.

Temporary Guidance Signs

Guidance signs provide navigational assistance in temporary zones:

TGE6: Advance Trailblazer.
TGA4(E): Gore exit direction (no exit number provided).
TGA4(V): Gore exit direction (including exit number).
TGD2-D: Detour direction.
TGD4: Detour fingerboard pointing toward a specific alternate route.

Temporary Information Signs

Information signs provide data regarding distances and speeds:

TIN1: Countdown sign indicating a distance of $100\,m$ to an exit or hazard.
TIN2: Countdown sign indicating a distance of $200\,m$ .
TIN3: Countdown sign indicating a distance of $300\,m$ .
TIN11.1: Recommended speed supplementary plate (e.g., $60\,km/h$ ).
TIN11.2: Distance "for" supplementary plate, indicating the length of the condition (e.g., "For $5\,km$ ").
TIN11.3: Distance "to" supplementary plate, indicating how far away a hazard is (e.g., " $1\,km$ " or " $400\,m$ ").
TIN11.4: Word message supplementary plate providing specific textual instructions.

Temporary Diagrammatic Signs

These signs use a visual layout to show lane configurations and diversions:

TGS102: Right lane of $2$ ends, due to an obstruction on the right.
TGS103: Left lane of $3$ ends, due to an obstruction on the left.
TGS106: Right lane of $4$ ends, due to an obstruction on the right.
TGS109: $1$ lane diverted to the right through an obstruction.
TGS112: $1$ lane diverted to the left through an obstruction, with $1$ opposing lane present.
TGS125: $1$ lane diverted to the right before an obstruction, with $1$ opposing lane present.
TGS126: $2$ lanes diverted to the right through an obstruction, with $1$ opposing lane present.
TGS127: $1$ lane diverted to the right before an obstruction, with $2$ opposing lanes present.
TGS129: $1$ lane diverted to the left before an obstruction, with $1$ opposing lane present.
TGS131: $2$ lanes next to an obstruction on the right.

Temporary Sign Combinations

Often, multiple signs are grouped to provide comprehensive information:

TR201-RC + TW208-WC + TIN11.2-SS3: Combines a speed limit ( $80$ ) on a high visibility background with a warning for a winding road ahead (also on high visibility) and a distance plate indicating the condition lasts "For $12\,km$ ".
TW336-WC + TIN11.3: A "Roadworks ahead" warning on a high visibility background combined with a distance "to" plate (e.g., " $400\,m$ ").
TGS304 + TIN11.2: A diagrammatic prohibition sign indicating "No goods vehicles in the right lane of a $3$ -lane roadway" for a specific indicated distance.
TGS303: A diagrammatic sign indicating a minimum speed requirement specifically for the right lane of a $3$ -lane roadway.
TR133 + TIN11.2: A command to "Switch head lamps on" that is compulsory for the distance indicated on the supplementary plate.
TW345-WA: Warns of heavy vehicles or construction vehicles crossing ahead, presented on a high visibility background.