This round sign means RAILROAD CROSSING ahead. RAILROAD CROSSING signs are yellow with a black crossbuck X and the letters RR. It is an advance warning sign that means a railroad track will cross the roadway ahead. In rural areas the sign may be up to 750 feet in advance of the railroad crossing. Slow down, look and stop if necessary.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 25 sites with active advance warning signs to 81 high-speed signalized intersections without active advance warning signs, it was concluded that active advance warning signs were effective in reducing the frequency and severity of accidents when the major and minor road ADTs were above 15,000 and 3,000, respectively. The Federal Railroad Administration minimum warning time is 20 seconds. Many states issue orders specifying the designed warning time at each crossing. Designed warning times vary from the low 20s to the high 30s, depending on the circumstances at the crossing. In addition to the signals and signs, Federal rules require train crews to begin ... 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. Jul 14, 2022 · Slow down and prepare for a very sharp turn. Chevron Alignment (Left). This sign indicates that the road will change direction sharply. Slow down to a safe speed. Main Road Curves to the Right Ahead. This sign indicates that the main road curves right with a side road entering from the left side in the curve. 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.Slow down and prepare for a very sharp turn. Chevron Alignment (Left). This sign indicates that the road will change direction sharply. Slow down to a safe speed. Main Road Curves to the Right Ahead. This sign indicates that the main road curves right with a side road entering from the left side in the curve.Green signs also provide guidance and information, i.e. parking signs, destination signs. Yellow means caution and this sign warns you to be prepared to slow down. You will often see yellow used for warning and school signs, as well as to indicate curves in the road, merging traffic, pedestrian crosswalks, railroad crossings, etc.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 ... 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.Some crossings have very little vehicular and train traffic. At such crossings it may not be cost effective to install and maintain gates or flashing lights. Decisions regarding the appropriate type of warning devices are made by the state highway officials. According to the Federal Railroad Administration, statistics show that most highway ... 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 ...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 ...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.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.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 ... 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. 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 areaEXPLANATION: 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.The round yellow sign, called an Advance Warning Sign, warns drivers that the road intersects with railroad tracks ahead. This sign tells us to slow down and be prepared to stop if a train is approaching. There is a no passing zone within 100 feet of the approach to 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 ...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.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 Federal Railroad Administration minimum warning time is 20 seconds. Many states issue orders specifying the designed warning time at each crossing. Designed warning times vary from the low 20s to the high 30s, depending on the circumstances at the crossing. In addition to the signals and signs, Federal rules require train crews to begin ... 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).– Warning Signs and Devices . Advance Warning Signs. The round, black-on-yellow warning sign is placed ahead of a public railroad-highway crossing. The advance warning sign tells you to slow down, look and listen for the train, and be prepared to stop at the tracks if a train is coming. See Figure 2.15. Pavement markings mean the same as the ...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 ...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. Watch 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.Rail Signs and Signals. You'll find these passive and active signs and traffic control devices along roads that cross railroad tracks before and at highway-rail grade crossings. Their purpose is to regulate, warn or guide traffic. They alert drivers to the presence of railroad tracks and to the possibility of an approaching train. 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. Watch Rail Signs and Signals. You'll find these passive and active signs and traffic control devices along roads that cross railroad tracks before and at highway-rail grade crossings. Their purpose is to regulate, warn or guide traffic. They alert drivers to the presence of railroad tracks and to the possibility of an approaching train.Railroad reparations are an important part of keeping transportation running smoothly. Ensure your employees well-being with our wide collection of railroad safety signs and accessories. • Railroad Chocks hold trains still in one direction while loading and unloading. Also, chocks are required by OSHA whenever rail cars are being worked on.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 trainPermanent five-sided (pentagon shaped) school crossing signs warn that children may be crossing any time of the day. Pennant sign. ... Railroad warning sign.Some crossings have very little vehicular and train traffic. At such crossings it may not be cost effective to install and maintain gates or flashing lights. Decisions regarding the appropriate type of warning devices are made by the state highway officials. According to the Federal Railroad Administration, statistics show that most highway ... 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. Watch Jan 29, 2020 · 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. Railroad advance warning signs are: a) Red and triangular b) Black on white in the shape of an X c) Orange and diamond-shaped d) Yellow and round b) Black on white in the shape of an X An odd-numbered Interstate using single or double digit number indicates a route that: a) Runs in a loop around a city b) Extends outward from a loop around c ...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. warning sign. Diamond-Shaped Traffic Signs Diamond-shaped traffic signs warn drivers of upcoming road conditions and hazards. A “slippery when wet” 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 areaRail Signs and Signals. You'll find these passive and active signs and traffic control devices along roads that cross railroad tracks before and at highway-rail grade crossings. Their purpose is to regulate, warn or guide traffic. They alert drivers to the presence of railroad tracks and to the possibility of an approaching train. with “passive warning devices” (such as crossbucks, stop signs and yield signs). Trains often require a mile or more to stop, and they cannotdeviate from their course. That is why safety at grade crossings, by its nature, is primarily a motorist’s responsibility. The warning devices are there to protect motorists, not trains. 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 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 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. 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. This round sign means RAILROAD CROSSING ahead. RAILROAD CROSSING signs are yellow with a black crossbuck X and the letters RR. It is an advance warning sign that means a railroad track will cross the roadway ahead. In rural areas the sign may be up to 750 feet in advance of the railroad crossing. Slow down, look and stop if necessary. 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 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. 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. 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. W2-6 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 ... W2-6 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 ...Railroad 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 aheadRail Signs and Signals. You'll find these passive and active signs and traffic control devices along roads that cross railroad tracks before and at highway-rail grade crossings. Their purpose is to regulate, warn or guide traffic. They alert drivers to the presence of railroad tracks and to the possibility of an approaching train.MVA Learners Permit Test. Come to a complete stop at the stop line or, if there is no stop line, prior to the crosswalk and before entering the intersection, and remain stopped as long as the signal is red. Unless a sign prohibits turning on red, after coming to a complete stop, you may turn right or you may turn left from a one-way street to ...Rail Signs and Signals. You'll find these passive and active signs and traffic control devices along roads that cross railroad tracks before and at highway-rail grade crossings. Their purpose is to regulate, warn or guide traffic. They alert drivers to the presence of railroad tracks and to the possibility of an approaching train.Jan 29, 2020 · 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. 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.Nov 10, 2022 · Pennant 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 Signs 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 Federal Railroad Administration minimum warning time is 20 seconds. Many states issue orders specifying the designed warning time at each crossing. Designed warning times vary from the low 20s to the high 30s, depending on the circumstances at the crossing. In addition to the signals and signs, Federal rules require train crews to begin ... 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. 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. Answers. Be ready to drive faster than the train. Be prepared to stop if a train is nearby. Look for a way around any lowered gates. Assume no trains are nearby and continue driving normally. Railroad crossing warning signs are used to warn drivers of the possibility of a train. Drivers should obey all railroad crossing warning signs and never ...Study with Quizlet and memorize flashcards containing terms like 1. What are the meanings of the eight shapes of signs: octagon, triangle, vertical rectangle, pentagon, round, pennant, diamond, horizontal rectangle?, 2. What are the meanings of the eight colors used for traffic signs: Red, Yellow, White, Orange, Black, Green, Blue, Brown?, 3. What actions should you take at a STOP, YIELD, and ...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 ... 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 ... 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. 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. Alert drivers to changing road conditions with Road Warning Signs. Protect both drivers and workers with heavy-duty aluminum signs that get noticed. • Huge selection of Road Work, Road Closed, Detour signs and much more! • Meet all of the latest road safety regulations with MUTCD-compliant designs. • Durable aluminum signs have a 10-year ...Slow down and prepare for a very sharp turn. Chevron Alignment (Left). This sign indicates that the road will change direction sharply. Slow down to a safe speed. Main Road Curves to the Right Ahead. This sign indicates that the main road curves right with a side road entering from the left side in the curve.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. 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.Alert drivers to changing road conditions with Road Warning Signs. Protect both drivers and workers with heavy-duty aluminum signs that get noticed. • Huge selection of Road Work, Road Closed, Detour signs and much more! • Meet all of the latest road safety regulations with MUTCD-compliant designs. • Durable aluminum signs have a 10-year ...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 ... 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 ...
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 ... . Used air conditioners for sale craigslist near me
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.warning sign. Diamond-Shaped Traffic Signs Diamond-shaped traffic signs warn drivers of upcoming road conditions and hazards. A “slippery when wet” 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 areaRAILROAD (TRAIN) CROSSINGS. 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 expect a train on a track at any time, day or night. Never stop on a railroad track. Usually by the time a train sees you it will be too late for it to stop.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 reparations are an important part of keeping transportation running smoothly. Ensure your employees well-being with our wide collection of railroad safety signs and accessories. • Railroad Chocks hold trains still in one direction while loading and unloading. Also, chocks are required by OSHA whenever rail cars are being worked on.a) green- Movement is permitted. b) yellow- General warning, caution. c) red- Stop or prohibition. Explain the type (s) of information communicated by the following sign colors. a) blue- Motorist services guidance. b) brown- Recreational/cultural guidance. c) orange- Temp work zone. d) pink- Incident management.Railroad reparations are an important part of keeping transportation running smoothly. Ensure your employees well-being with our wide collection of railroad safety signs and accessories. • Railroad Chocks hold trains still in one direction while loading and unloading. Also, chocks are required by OSHA whenever rail cars are being worked on.the 25 sites with active advance warning signs to 81 high-speed signalized intersections without active advance warning signs, it was concluded that active advance warning signs were effective in reducing the frequency and severity of accidents when the major and minor road ADTs were above 15,000 and 3,000, respectively.Advance Warning Sign. These signs warn you that railroad tracks are ahead. Watch out! This sign also tells you to slow down, look and listen because you may have to stop, and it shows which way the tracks cross the road. Quiet Zone. Trains do not blow their horns in these areas, but the engineer can still sound the horn in emergency situations. 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 ... 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.Pennant 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 SignsWhen 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. 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.