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Warning signs or cautionary signs give information to the driver about the
impending road condition.
They advice the driver to obey the rules.
These signs are meant for the own safety of drivers.
They call for extra vigilance from the part of drivers.
The color convention used for this type of signs is that the legend will be
black in color with a white background.
The shape used is upward triangular or diamond shape with red borders.
Some of the examples for this type of signs are given in fig 1 and
includes right hand curve sign board, signs for narrow road, sign indicating
railway track ahead etc.
Figure 1:
Examples of cautionary signs ( right hand curve sign board, signs for
narrow road, sign indicating railway track ahead)
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