A railway detonator (torpedo in North America) is a coin-sized device that is used as a loud warning signal to train drivers. It is placed on the top of the rail, usually secured with two lead straps, one on each side. When the wheel of the train passes over, it explodes, emitting a loud bang. Flashing green lights that are not traffic signals are sometimes used to warn you of an upcoming stop sign, railroad crossing, an upcoming signal light, pedestrian crossing, school zone, or construction zone. A flashing red signal light has the same meaning as a stop sign. Regulatory signs are signs that indicate warning of potential dangers ... Also, ignoring warning devices and going around the gates makes the driver legally liable for any deaths, injuries, or damage to property if a collision occurs. At a crossing with active signs: 1) Stop and wait for the gate to go up. 2) Stop at flashing lights and proceed only if a train is not visible. Source: Operation Lifesaver, Inc.Apr 28, 2023 · Warning Signs. Warning signs are used to alert motorists of possible hazards that may be approaching or circumstances that may not be easily spotted. These are almost always yellow signs but can come in a variety of different shapes and sizes. Examples: Pedestrian crossing sign, animal crossing ahead, winding road ahead, and speed bumps ahead. Nov 14, 2022 · C. Hazard warning sign. D. Yield sign. ANSWER: C. Diamond-shaped traffic signs warn you of hazards and specific road conditions ahead. A. Three-sided and yellow. B. Diamond shaped and orange. C. Round and yellow. D. Square and white. ANSWER: C. Circular (round) traffic signs mean there is a railroad crossing ahead. Round: Railroad Warning Used to warn that there is a railroad crossing ahead. h.Crossbuck: Highway—Rail Grade Crossing Identifies the location of a railroad crossing. i. Trapezoid Recreation and cultural interest areas and National Forest Routes. 3. Regulatory Signs These signs provide notice to road users of traffic laws, and they must be ...This part of the road's shoulder can only be used for emergencies. Mileposts are located __ on interstate highways starting at the state line. Every mile. Railroad warning signs warn _____. If we are approaching or next to a railroad. Broken yellow lines separate _____. Two-way roads where you can legally pass. Warning Railroad Crossing Interstate Highway Many of these warning signs use the same symbols as yellow warning signs, but you should take extra care when orange signs are posted. Traffic and road conditions around work zones often change quickly. In addition to posting orange warning signs, road work crews can use a number ofThe advanCe WaRning sign is usually the first sign drivers see when approaching a highway-rail intersection. This sign advises drivers to always slow down, look and listen and be prepared to stop for an approaching train. CRoSSbuCk signs are found at most highway-rail intersections.This part of the road's shoulder can only be used for emergencies. Mileposts are located __ on interstate highways starting at the state line. Every mile. Railroad warning signs warn _____. If we are approaching or next to a railroad. Broken yellow lines separate _____. Two-way roads where you can legally pass.• The driver fails to observe and obey the advance railroad warning sign and other warning signs and signals. • While driving at night or in an unfamiliar location, the driver travels at a speed too great and cannot stop in time or drives in front of a train. • Radio, cell phones and other distractions avert the driver’s attention.At crossings there are signs with a toll-free number to call the railroad directly and warn them of stalled vehicles or other problems at the crossing. When crossing has more than one track, don't try to cross immediately after the end of the train passes -- there may be another train approaching on the second track.Warning Railroad Crossing Interstate Highway Many of these warning signs use the same symbols as yellow warning signs, but you should take extra care when orange signs are posted. Traffic and road conditions around work zones often change quickly. In addition to posting orange warning signs, road work crews can use a number of RM RP61C9 – Un-gated level crossing sign Stop Look Listen Beware of trains, a compulsory whistle sign for the train and a 20 mph speed limit on the bridge ahead. RM BFG9X6 – A Stop, Look, Listen warning sign beside a railway crossing. RM B34YP5 – Ungated level crossing sign Stop Look Listen Beware of trains with passing freight train. Traffic Safety. Passive Warning Devices. Safety at Indiana rail-highway crossings are controlled through a variety of roadway signs, warnings, and pavement notices. RR Advance Warning Sign. The advance warning sign is placed to attract the driver’s attention and warn that there is a railroad crossing ahead so the driver can slow down to look ...Flashing green lights that are not traffic signals are sometimes used to warn you of an upcoming stop sign, railroad crossing, an upcoming signal light, pedestrian crossing, school zone, or construction zone. A flashing red signal light has the same meaning as a stop sign. Regulatory signs are signs that indicate warning of potential dangers ... Exclusively to warn of existing or possible hazards on roadways or adjacent areas. Vertical Rectangle Generally for regulatory signs. Pentagon School advance and school crossing signs. Round Railroad advance warning signs. Crossbuck Railroad crossing. Octagon: Stop Signs are always octagonal (8 sided). A stop sign means that you must bring your ... this sign is a warning of a railroad crossing. Look, listen, slow down and be prepared to stop for trains or any vehicles using the rails. Trains may be approaching from either direction. If there is more than one track, trains may be approaching from either direction on either track. The blue ENS sign lists a telephone number to notify the railroad of an emergency warning device malfunction. If you see a problem at a crossing, call this number as soon as possible and provide the posted crossing number. Local law enforcement can also contact the railroad for you. Emergency Railroad Contacts .a) Construction zone ahead. b) Hospital ahead. c) Railroad crossing ahead. d) Roundabout ahead. d) Roundabout ahead. What should you do if you see this sign? a) Come to a complete stop, proceed when you have the right-of-way. b) Slow down, yield proceed when you have the right of way. c) Come to a complete stop only if there is a vehicle coming ...A circular sign tells you of an approaching railroad crossing. A five-sided sign tells you there is a school nearby. A white rectangular sign tells you about important rules you must obey. Many road signs warn you to slow down and watch for hazards or special conditions ahead. Most warning signs are yellow and diamond-shaped with black letters ... true. Flashing green lights that are not traffic signals are sometimes used to warn you of an upcoming stop sign, railroad crossing, an upcoming signal light, pedestrian crossing, school zone, or construction zone. false. A flashing red signal light has the same meaning as a stop sign. true. Railroad Warning Signs. warn drivers if they are approaching or next to a railroad. Always slow down and be prepared to stop. If you see a train coming, STOP.warning sign. Diamond-Shaped Traffic Signs Diamond-shaped traffic signs warn drivers of upcoming road conditions and hazards. A “Divided Highway Ends” sign is an example of a diamond-shaped traffic sign. Five-Sided Traffic Signs Five-sided traffic signs warn drivers that they are entering an area Signs warn you that you are approaching railroad tracks. Look and listen for trains in both directions. Be ready to stop, if necessary. You should be prepared for a train to come at any time, day or night. Never stop on railroad tracks. Usually by the time a train conductor sees you, it is too late for the train to stop. What does a Railroad Advance Warning sign mean? A Railroad Crossing sign warns drivers that a railroad crossing is ahead. The "RXR" sign is posted before a railroad crossing, while pavement markings may be painted prior to a crossing, before the stop line. When approaching a railroad crossing, look in both directions and listen for trains. The road become slippery when wet. Drive in the right-hand lane and expect traffic from the left-hand lane. There’s a gradual curve ahead in the direction of the arrow. Crossroad ahead. Warning sign of a reduction of the lanes. T-intersection ahead. Y-intersection ahead. Other traffic lanes are going to come together.2.3 WARNING SIGNS Warning signs are yellow with black lettering or symbols and most are diamond-shaped. These signs warn you to slow down and be prepared to stop if necessary; a special situation or hazard is ahead. Some common warning signs are shown below. INTERSECTION/ CROSSROAD There is another road ahead that crosses the road you are on. WatchPennant Road Signs. Pennant-shaped signs warn drivers that a no-passing zone is ahead. Diamond Road Signs. Diamonds are used for warning signs. Vertical Rectangle Road Signs. Vertical rectangle road signs are used to convey regulatory information, such as the speed limit. Pentagon Road Signs. Pentagons are used in school zones. Round Road SignsRailroad crossing signs are used to warn drivers of nearby crossings, so that they may reduce their speed and look out for approaching trains. These unusual warning signs are circular, featuring a black cross over a yellow background. They often include two “R” symbols on either side of the cross. School zone aheadRound yellow warning signs alert motorists that there's a railroad crossing ahead. Warning signs are made with the highest quality .080 aluminum, coated with the industries best 3M or Avery reflective sheeting and printed to last beyond the sheeting warranty. Traffic Warning Signs; Object Markers; Railroad Signs; Crossing Signs; Dead End ... Flashing green lights that are not traffic signals are sometimes used to warn you of an upcoming stop sign, railroad crossing, an upcoming signal light, pedestrian crossing, school zone, or construction zone. A flashing red signal light has the same meaning as a stop sign. Regulatory signs are signs that indicate warning of potential dangers ... SIGN SHAPES WARNING SIGNS These signs are yellow with black lettering or symbols and usually diamond shaped. These signs warn you to slow down and be prepared to stop if necessary because a special situation or a hazard is ahead. Some common warning signs are shown below. TRAFFIC CONTROL 31 Octagon = Stop Triangle = Yield Vertical Rectangle ...The blue ENS sign lists a telephone number to notify the railroad of an emergency warning device malfunction. If you see a problem at a crossing, call this number as soon as possible and provide the posted crossing number. Local law enforcement can also contact the railroad for you. Emergency Railroad Contacts . Exclusively to warn of existing or possible hazards on roadways or adjacent areas. Vertical Rectangle Generally for regulatory signs. Pentagon School advance and school crossing signs. Round Railroad advance warning signs. Crossbuck Railroad crossing. Octagon: Stop Signs are always octagonal (8 sided). A stop sign means that you must bring your ...Round: Railroad Warning Used to warn that there is a railroad crossing ahead. h.Crossbuck: Highway—Rail Grade Crossing Identifies the location of a railroad crossing. i. Trapezoid Recreation and cultural interest areas and National Forest Routes. 3. Regulatory Signs These signs provide notice to road users of traffic laws, and they must be ...Road signs have been designed to be consistent. Red usually means stop or danger. Blue indicates user services or tourist information. Brown guides you to cultural or local attractions. Yellow asks for caution. Just as a color denotes one factor, shape designates another: stop signs are the only style that is octagonal.Study with Quizlet and memorize flashcards containing terms like Brown is used as a background color for guide and information signs related to points of recreation or cultural interest and on some street name signs., The shape of a circle is commonly used in California for advanced warning that means there is a railroad crossing ahead., You may cross over a solid yellow line to make a left ... The road become slippery when wet. Drive in the right-hand lane and expect traffic from the left-hand lane. There’s a gradual curve ahead in the direction of the arrow. Crossroad ahead. Warning sign of a reduction of the lanes. T-intersection ahead. Y-intersection ahead. Other traffic lanes are going to come together.Railroad warning signs warn _____. A.) If a train is approaching B.) If it's time to make a dancing train C.) If it is not safe to cross the tracks D.) If you are approaching or next to a railroadtrue. Flashing green lights that are not traffic signals are sometimes used to warn you of an upcoming stop sign, railroad crossing, an upcoming signal light, pedestrian crossing, school zone, or construction zone. false. A flashing red signal light has the same meaning as a stop sign. true. Oct 24, 2021 · EXEMPT RAILROAD WARNING SIGN (W10-1AP) (a) Justification. The Exempt Railroad Warning Sign (W10-1AP) shall be authorized for use at those railroad grade crossings having "exempt" status as determined by the Public Utility Commission and an Exempt Railroad Crossing Sign (R15-3P) mounted beneath the Railroad Crossbuck Sign (R15-1). (b) Placement. Advance warning signs (Wl0-1, Wl0-2, Wl0-3, W10-4). The round, black, and yellow advance warning sign (W10-1) is located in advance of the crossing and serves to alert the motorist that a crossing is ahead. The advance warning sign has a minimum diameter of 36 inches for conventional roads. The sign is required in advance of all crossings except:The test includes 100 questions about regulatory signs, warning signs, work zone signs, guide signs and service signs. The official DMV written test is designed to also check your knowledge of traffic laws, road rules and safe driving practices. So, after taking this road signs test, be sure to check our comprehensive set of DMV practice tests.Passive signs – most common are the round yellow advance warning signs, pavement markings, crossbuck signs, stop signs and yield signs. Active signs – this includes flashing lights, gates with flashing red lights and other warning devices. How to Enter and Leave a Railroad Crossing. Here are 9 safety tips for railroad crossings:Railroad Crossing Signs, Signals, and Gates: The round, yellow RXR sign is an advance warning sign indicating a railroad crossing ahead. RXR pavement markings are followed by a stop line closer to the tracks. The cross-buck sign marks the railroad crossing. The number of tracks may be shown below the cross-buck. Treat this as a yield sign. Unless otherwise posted, a speed limit of 100 kilometers per hour (kph) (62 miles per hour (mph)) applies to all vehicles on all highways and roads in Germany. True or False? False. Under certain circumstances, the maximum speed posted may be too fast for road and traffic conditions.When approaching a train crossing, you’ll often see advance warning signs. (But not always!) The most common warning sign is a big yellow circle with an “X” and the letters “RR.”. No, the “RR” does not stand for RiRi. If the train is already on its way, you might see flashing red lights. The 5 sided sign warns of. School zone or school crossings. Traffic signs are used to. Control traffic and pedestrians. A flashing yellow traffic signal at an intersection means. Slow down and proceed with caution. When can you disregard a signal given by a police officer directing traffic. Never. Railroad Warning: Used to warn that there is a railroad crossing ahead. Sign Shapes: Crossbuck Highway-Rail Grade Crossing: Identifies the location of a railroad crossing.At crossings there are signs with a toll-free number to call the railroad directly and warn them of stalled vehicles or other problems at the crossing. When crossing has more than one track, don't try to cross immediately after the end of the train passes -- there may be another train approaching on the second track.Crashes at grade crossings equipped with warning devices often involve motorists who drive around gates or across railroad tracks while flashing lights are warning them that a train is approaching. This noncompliant behavior may be due to the motorists’ expectations of train arrival time following activation of gates and lights as well as the ...true. Flashing green lights that are not traffic signals are sometimes used to warn you of an upcoming stop sign, railroad crossing, an upcoming signal light, pedestrian crossing, school zone, or construction zone. false. A flashing red signal light has the same meaning as a stop sign. true. This sign is most commonly used in California for advance warning that means there is a railroad crossing ahead. shape of a crossbuck This shape of a crossbuck is used exclusively to warn of a railroad crossing. true. Flashing green lights that are not traffic signals are sometimes used to warn you of an upcoming stop sign, railroad crossing, an upcoming signal light, pedestrian crossing, school zone, or construction zone. false. A flashing red signal light has the same meaning as a stop sign. true.Study with Quizlet and memorize flashcards containing terms like No left turn- Regulatory, Stop sign- Regulatory, Railroad tracks ahead- Warning and more. Fresh features from the #1 AI-enhanced learning platform. Study with Quizlet and memorize flashcards containing terms like No left turn- Regulatory, Stop sign- Regulatory, Railroad tracks ahead- Warning and more. Fresh features from the #1 AI-enhanced learning platform.Warning Railroad Crossing Interstate Highway Many of these warning signs use the same symbols as yellow warning signs, but you should take extra care when orange signs are posted. Traffic and road conditions around work zones often change quickly. In addition to posting orange warning signs, road work crews can use a number of The advanCe WaRning sign is usually the first sign drivers see when approaching a highway-rail intersection. This sign advises drivers to always slow down, look and listen and be prepared to stop for an approaching train. CRoSSbuCk signs are found at most highway-rail intersections.Also, ignoring warning devices and going around the gates makes the driver legally liable for any deaths, injuries, or damage to property if a collision occurs. At a crossing with active signs: 1) Stop and wait for the gate to go up. 2) Stop at flashing lights and proceed only if a train is not visible. Source: Operation Lifesaver, Inc. The active advance warning sign (AAWS) consists of one or two 12-inch yellow hazard identification beacons mounted above the advance warning sign, as shown in Figure 39. An advisory speed plate sign indicating the safe approach speed also should be posted with the sign. 94 The AAWS provides motorists with advance warning that a train is ...Flashing green lights that are not traffic signals are sometimes used to warn you of an upcoming stop sign, railroad crossing, an upcoming signal light, pedestrian crossing, school zone, or construction zone. A flashing red signal light has the same meaning as a stop sign. Regulatory signs are signs that indicate warning of potential dangers ... Flashing green lights that are not traffic signals are sometimes used to warn you of an upcoming stop sign, railroad crossing, an upcoming signal light, pedestrian crossing, school zone, or construction zone. A flashing red signal light has the same meaning as a stop sign. Regulatory signs are signs that indicate warning of potential dangers ...Round: Railroad Warning Used to warn that there is a railroad crossing ahead. h.Crossbuck: Highway—Rail Grade Crossing Identifies the location of a railroad crossing. i. Trapezoid Recreation and cultural interest areas and National Forest Routes. 3. Regulatory Signs These signs provide notice to road users of traffic laws, and they must be ...This sign is most commonly used in California for advance warning that means there is a railroad crossing ahead. shape of a crossbuck This shape of a crossbuck is used exclusively to warn of a railroad crossing. The place of safety to be occupied upon the approach of a train may not be on a track, unless working limits are established on that track. ( b) Watchmen/lookouts assigned to provide train approach warning shall devote full attention to detecting the approach of trains and communicating a warning thereof, and shall not be assigned any other ...At crossings there are signs with a toll-free number to call the railroad directly and warn them of stalled vehicles or other problems at the crossing. When crossing has more than one track, don't try to cross immediately after the end of the train passes -- there may be another train approaching on the second track. EXPLANATION: A school crossing sign is an example of a Warning sign. Warning signs are usually yellow, like curve ahead, school zone, low bridge, etc. School zones are indicated by regulator signs with the posted hours of operation and flashing yellow lights advising caution.2.3 WARNING SIGNS Warning signs are yellow with black lettering or symbols and most are diamond-shaped. These signs warn you to slow down and be prepared to stop if necessary; a special situation or hazard is ahead. Some common warning signs are shown below. INTERSECTION/ CROSSROAD There is another road ahead that crosses the road you are on. WatchW2-6 Roundabout Symbol Sign. $30.80. Select Options. Fast Nationwide Shipping. Due to supply chain shortages related to COVID-19 lead times may be longer than usual. Orders may take 2 - 10 business days to ship. Specialty items such as LED Flashing signs and Roll-Up Signs have extended lead times. If your project is time sensitive please ... true. Flashing green lights that are not traffic signals are sometimes used to warn you of an upcoming stop sign, railroad crossing, an upcoming signal light, pedestrian crossing, school zone, or construction zone. false. When you see a yellow light, you should slow down and stop before entering the intersection, if you can do so safely. 1. you are directed to do so by a flag person 2. there are flashing red lights or warning bells sounding 3. there is any warning device telling you a train is coming Solid and broken lines A solid yellow line on your side of the road might say no passing zone. Exclusively to warn of existing or possible hazards on roadways or adjacent areas. Vertical Rectangle Generally for regulatory signs. Pentagon School advance and school crossing signs. Round Railroad advance warning signs. Crossbuck Railroad crossing. Octagon: Stop Signs are always octagonal (8 sided). A stop sign means that you must bring your ...C. Hazard warning sign. D. Yield sign. ANSWER: C. Diamond-shaped traffic signs warn you of hazards and specific road conditions ahead. A. Three-sided and yellow. B. Diamond shaped and orange. C. Round and yellow. D. Square and white. ANSWER: C. Circular (round) traffic signs mean there is a railroad crossing ahead.The 5 sided sign warns of. School zone or school crossings. Traffic signs are used to. Control traffic and pedestrians. A flashing yellow traffic signal at an intersection means. Slow down and proceed with caution. When can you disregard a signal given by a police officer directing traffic. Never. C. Hazard warning sign. D. Yield sign. ANSWER: C. Diamond-shaped traffic signs warn you of hazards and specific road conditions ahead. A. Three-sided and yellow. B. Diamond shaped and orange. C. Round and yellow. D. Square and white. ANSWER: C. Circular (round) traffic signs mean there is a railroad crossing ahead.EXEMPT RAILROAD WARNING SIGN (W10-1AP) (a) Justification. The Exempt Railroad Warning Sign (W10-1AP) shall be authorized for use at those railroad grade crossings having "exempt" status as determined by the Public Utility Commission and an Exempt Railroad Crossing Sign (R15-3P) mounted beneath the Railroad Crossbuck Sign (R15-1). (b) Placement.This part of the road's shoulder can only be used for emergencies. Mileposts are located __ on interstate highways starting at the state line. Every mile. Railroad warning signs warn _____. If we are approaching or next to a railroad. Broken yellow lines separate _____. Two-way roads where you can legally pass.This sign is most commonly used in California for advance warning that means there is a railroad crossing ahead. shape of a crossbuck This shape of a crossbuck is used exclusively to warn of a railroad crossing. Railroad warning signs warn _____. A.) If a train is approaching B.) If it's time to make a dancing train C.) If it is not safe to cross the tracks D.) If you are approaching or next to a railroad Advance Warning Signs: These signs are large circles with a yellow background, a black X in the middle and an R on each side. These warn the driver that the road crosses over tracks. These are primarily used to remind the driver to slow down, then look and listen for a train before going over the cross way. No Train Horn: These are rectangular ... DIAMOND: Exclusively to warn of existing or possible hazards on roadways or adjacent areas. VERTICAL RECTANGLE: Generally for regulatory signs. PENTAGON: School advance and school crossing signs. ROUND: railroad advance warning signs. CROSSBUCK: Railroad crossing. Octagon: Stop. Stop signs are always octagonal (8 sided).
The road become slippery when wet. Drive in the right-hand lane and expect traffic from the left-hand lane. There’s a gradual curve ahead in the direction of the arrow. Crossroad ahead. Warning sign of a reduction of the lanes. T-intersection ahead. Y-intersection ahead. Other traffic lanes are going to come together. . Gogo no kouchou junai mellow yori 1
RM RP61C9 – Un-gated level crossing sign Stop Look Listen Beware of trains, a compulsory whistle sign for the train and a 20 mph speed limit on the bridge ahead. RM BFG9X6 – A Stop, Look, Listen warning sign beside a railway crossing. RM B34YP5 – Ungated level crossing sign Stop Look Listen Beware of trains with passing freight train. The road become slippery when wet. Drive in the right-hand lane and expect traffic from the left-hand lane. There’s a gradual curve ahead in the direction of the arrow. Crossroad ahead. Warning sign of a reduction of the lanes. T-intersection ahead. Y-intersection ahead. Other traffic lanes are going to come together. The 5 sided sign warns of. School zone or school crossings. Traffic signs are used to. Control traffic and pedestrians. A flashing yellow traffic signal at an intersection means. Slow down and proceed with caution. When can you disregard a signal given by a police officer directing traffic. Never.respond to an approaching train and actively warn drivers and walkers. Passive signs you may see before you get to a crossing Yellow circular Advance Warning sign. This sign warns drivers that the road crosses the railroad tracks ahead. When drivers see this sign, it reminds them to slow down, look and listen for a trainAlso, ignoring warning devices and going around the gates makes the driver legally liable for any deaths, injuries, or damage to property if a collision occurs. At a crossing with active signs: 1) Stop and wait for the gate to go up. 2) Stop at flashing lights and proceed only if a train is not visible. Source: Operation Lifesaver, Inc.The test includes 100 questions about regulatory signs, warning signs, work zone signs, guide signs and service signs. The official DMV written test is designed to also check your knowledge of traffic laws, road rules and safe driving practices. So, after taking this road signs test, be sure to check our comprehensive set of DMV practice tests.The place of safety to be occupied upon the approach of a train may not be on a track, unless working limits are established on that track. ( b) Watchmen/lookouts assigned to provide train approach warning shall devote full attention to detecting the approach of trains and communicating a warning thereof, and shall not be assigned any other ... Warning Signs. Warning signs tell you about conditions on or near the road ahead. They warn you about possible hazards or changes in roadway conditions. They are posted before the condition, so you have time to see what is ahead, decide how you should respond, and slow down or change your travel path, if necessary.• The driver fails to observe and obey the advance railroad warning sign and other warning signs and signals. • While driving at night or in an unfamiliar location, the driver travels at a speed too great and cannot stop in time or drives in front of a train. • Radio, cell phones and other distractions avert the driver’s attention.This sign is most commonly used in California for advance warning that means there is a railroad crossing ahead. shape of a crossbuck This shape of a crossbuck is used exclusively to warn of a railroad crossing. The use of red on signs is limited to stop, yield, and prohibition signs. A white background indicates a regulatory sign; yellow conveys a general warning message; green shows permitted traffic movements or directional guidance; fluorescent yellow/green indicates pedestrian crossings and school zones; orange is used for warning and guidance in ...EXPLANATION: A school crossing sign is an example of a Warning sign. Warning signs are usually yellow, like curve ahead, school zone, low bridge, etc. School zones are indicated by regulator signs with the posted hours of operation and flashing yellow lights advising caution. this sign is a warning of a railroad crossing. Look, listen, slow down and be prepared to stop for trains or any vehicles using the rails. Trains may be approaching from either direction. If there is more than one track, trains may be approaching from either direction on either track.EXPLANATION: A school crossing sign is an example of a Warning sign. Warning signs are usually yellow, like curve ahead, school zone, low bridge, etc. School zones are indicated by regulator signs with the posted hours of operation and flashing yellow lights advising caution..