What's the meaning of the sign “Broken white line only marks the centre of the road”?

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In Tenerife, on the road TF-21 near the Teide volcano, I've seen this sign:



enter image description here



It reads, both in Spanish and English:




ATENCIÓN

Linea discontinua solo indica eje carretera



WARNING

Broken white line only marks the centre of the road




I don't really understand what it means. Why does it only mark the centre of the road? What else should it do? Does it refer to overtaking? Is the sign saying that, contrary to its common meaning, this broken line does not indicate that it is allowed to overtake? It's my best guess, but I'm not convinced, because in that case I'd expect a solid line, not a broken one and a sign.



So, what does it mean? And if it's really about overtaking, why didn't they use a solid line?










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  • 1




    Perhaps they didn't have enough paint and could not paint a solid line? This one really is strange...
    – Michael Hampton
    26 mins ago














up vote
6
down vote

favorite
1












In Tenerife, on the road TF-21 near the Teide volcano, I've seen this sign:



enter image description here



It reads, both in Spanish and English:




ATENCIÓN

Linea discontinua solo indica eje carretera



WARNING

Broken white line only marks the centre of the road




I don't really understand what it means. Why does it only mark the centre of the road? What else should it do? Does it refer to overtaking? Is the sign saying that, contrary to its common meaning, this broken line does not indicate that it is allowed to overtake? It's my best guess, but I'm not convinced, because in that case I'd expect a solid line, not a broken one and a sign.



So, what does it mean? And if it's really about overtaking, why didn't they use a solid line?










share|improve this question



















  • 1




    Perhaps they didn't have enough paint and could not paint a solid line? This one really is strange...
    – Michael Hampton
    26 mins ago












up vote
6
down vote

favorite
1









up vote
6
down vote

favorite
1






1





In Tenerife, on the road TF-21 near the Teide volcano, I've seen this sign:



enter image description here



It reads, both in Spanish and English:




ATENCIÓN

Linea discontinua solo indica eje carretera



WARNING

Broken white line only marks the centre of the road




I don't really understand what it means. Why does it only mark the centre of the road? What else should it do? Does it refer to overtaking? Is the sign saying that, contrary to its common meaning, this broken line does not indicate that it is allowed to overtake? It's my best guess, but I'm not convinced, because in that case I'd expect a solid line, not a broken one and a sign.



So, what does it mean? And if it's really about overtaking, why didn't they use a solid line?










share|improve this question















In Tenerife, on the road TF-21 near the Teide volcano, I've seen this sign:



enter image description here



It reads, both in Spanish and English:




ATENCIÓN

Linea discontinua solo indica eje carretera



WARNING

Broken white line only marks the centre of the road




I don't really understand what it means. Why does it only mark the centre of the road? What else should it do? Does it refer to overtaking? Is the sign saying that, contrary to its common meaning, this broken line does not indicate that it is allowed to overtake? It's my best guess, but I'm not convinced, because in that case I'd expect a solid line, not a broken one and a sign.



So, what does it mean? And if it's really about overtaking, why didn't they use a solid line?







spain canary-islands road-signs






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edited 11 mins ago

























asked 1 hour ago









Fabio Turati

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  • 1




    Perhaps they didn't have enough paint and could not paint a solid line? This one really is strange...
    – Michael Hampton
    26 mins ago












  • 1




    Perhaps they didn't have enough paint and could not paint a solid line? This one really is strange...
    – Michael Hampton
    26 mins ago







1




1




Perhaps they didn't have enough paint and could not paint a solid line? This one really is strange...
– Michael Hampton
26 mins ago




Perhaps they didn't have enough paint and could not paint a solid line? This one really is strange...
– Michael Hampton
26 mins ago










2 Answers
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If I understand it correctly, it has to do with overtaking, but the signage is really confusing.



In Spain, a continuous line means that overtaking is prohibited and it is in no case allowed to cross the line. That means, that it is even prohibited to turn left. It is allowed to overtake bicyclists, if you are able to keep a safe distance without actually crossing the continuous line.



A broken line means that you are allowed to overtake if traffic and visibility allows you to do so safely.



The sign you have found is quite common on narrow mountain roads and used together with a broken middle line. I guess it is supposed to be a reminder that even if it is strictly speaking not prohibited to overtake (due to the broken line), the road is too narrow and curvy at most places to do so safely. You may however have a chance driving uphill to quickly overtake a bicyclist or turn left, if that is required. Had they used a continuous line, you would not even had been allowed to turn left, or pass bicyclists.





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    In many countries, it is common to indicate with the broken line that it is a place where it is safely possible to overtake.

    Teneriffa is not following this usage, and to make sure people don't assume so, warns about it. Otherwise, many people would assume it is save to overtake - and have bad accidents (probably what happened and triggered the sign)






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      2 Answers
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      2 Answers
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      If I understand it correctly, it has to do with overtaking, but the signage is really confusing.



      In Spain, a continuous line means that overtaking is prohibited and it is in no case allowed to cross the line. That means, that it is even prohibited to turn left. It is allowed to overtake bicyclists, if you are able to keep a safe distance without actually crossing the continuous line.



      A broken line means that you are allowed to overtake if traffic and visibility allows you to do so safely.



      The sign you have found is quite common on narrow mountain roads and used together with a broken middle line. I guess it is supposed to be a reminder that even if it is strictly speaking not prohibited to overtake (due to the broken line), the road is too narrow and curvy at most places to do so safely. You may however have a chance driving uphill to quickly overtake a bicyclist or turn left, if that is required. Had they used a continuous line, you would not even had been allowed to turn left, or pass bicyclists.





      share
























        up vote
        2
        down vote













        If I understand it correctly, it has to do with overtaking, but the signage is really confusing.



        In Spain, a continuous line means that overtaking is prohibited and it is in no case allowed to cross the line. That means, that it is even prohibited to turn left. It is allowed to overtake bicyclists, if you are able to keep a safe distance without actually crossing the continuous line.



        A broken line means that you are allowed to overtake if traffic and visibility allows you to do so safely.



        The sign you have found is quite common on narrow mountain roads and used together with a broken middle line. I guess it is supposed to be a reminder that even if it is strictly speaking not prohibited to overtake (due to the broken line), the road is too narrow and curvy at most places to do so safely. You may however have a chance driving uphill to quickly overtake a bicyclist or turn left, if that is required. Had they used a continuous line, you would not even had been allowed to turn left, or pass bicyclists.





        share






















          up vote
          2
          down vote










          up vote
          2
          down vote









          If I understand it correctly, it has to do with overtaking, but the signage is really confusing.



          In Spain, a continuous line means that overtaking is prohibited and it is in no case allowed to cross the line. That means, that it is even prohibited to turn left. It is allowed to overtake bicyclists, if you are able to keep a safe distance without actually crossing the continuous line.



          A broken line means that you are allowed to overtake if traffic and visibility allows you to do so safely.



          The sign you have found is quite common on narrow mountain roads and used together with a broken middle line. I guess it is supposed to be a reminder that even if it is strictly speaking not prohibited to overtake (due to the broken line), the road is too narrow and curvy at most places to do so safely. You may however have a chance driving uphill to quickly overtake a bicyclist or turn left, if that is required. Had they used a continuous line, you would not even had been allowed to turn left, or pass bicyclists.





          share












          If I understand it correctly, it has to do with overtaking, but the signage is really confusing.



          In Spain, a continuous line means that overtaking is prohibited and it is in no case allowed to cross the line. That means, that it is even prohibited to turn left. It is allowed to overtake bicyclists, if you are able to keep a safe distance without actually crossing the continuous line.



          A broken line means that you are allowed to overtake if traffic and visibility allows you to do so safely.



          The sign you have found is quite common on narrow mountain roads and used together with a broken middle line. I guess it is supposed to be a reminder that even if it is strictly speaking not prohibited to overtake (due to the broken line), the road is too narrow and curvy at most places to do so safely. You may however have a chance driving uphill to quickly overtake a bicyclist or turn left, if that is required. Had they used a continuous line, you would not even had been allowed to turn left, or pass bicyclists.






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          answered 7 mins ago









          Tor-Einar Jarnbjo

          30.2k375110




          30.2k375110






















              up vote
              1
              down vote













              In many countries, it is common to indicate with the broken line that it is a place where it is safely possible to overtake.

              Teneriffa is not following this usage, and to make sure people don't assume so, warns about it. Otherwise, many people would assume it is save to overtake - and have bad accidents (probably what happened and triggered the sign)






              share|improve this answer
























                up vote
                1
                down vote













                In many countries, it is common to indicate with the broken line that it is a place where it is safely possible to overtake.

                Teneriffa is not following this usage, and to make sure people don't assume so, warns about it. Otherwise, many people would assume it is save to overtake - and have bad accidents (probably what happened and triggered the sign)






                share|improve this answer






















                  up vote
                  1
                  down vote










                  up vote
                  1
                  down vote









                  In many countries, it is common to indicate with the broken line that it is a place where it is safely possible to overtake.

                  Teneriffa is not following this usage, and to make sure people don't assume so, warns about it. Otherwise, many people would assume it is save to overtake - and have bad accidents (probably what happened and triggered the sign)






                  share|improve this answer












                  In many countries, it is common to indicate with the broken line that it is a place where it is safely possible to overtake.

                  Teneriffa is not following this usage, and to make sure people don't assume so, warns about it. Otherwise, many people would assume it is save to overtake - and have bad accidents (probably what happened and triggered the sign)







                  share|improve this answer












                  share|improve this answer



                  share|improve this answer










                  answered 10 mins ago









                  Aganju

                  17.5k53868




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