NH Driver's Manual Road Signs and Colors and Shapes

purple (color meaning)

E-Z pass (sign color)

80, 76, 64

NH even numbered, two digit interstates

89, 93, 95

NH odd numbered, two digit interstates

white, black (color meaning)

a law or rule (sign color)

circle (shape meaning)

advance warning of a railroad crossing (sign shape)

orange (color meaning)

construction warning (sign color)

green (color meaning)

direction or guidance (sign color)

blue (color meaning)

driver services (sign color)

around or through city

even numbered, three digit interstate signs (where they go)

east or west

even numbered, two digit interstate signs (direction)

yellow (color meaning)

general warning (sign color)

crossbuck (shape meaning)

marks spot of railroad crossing (sign shape)

pennant (shape meaning)

no passing (sign shape)

into city

odd numbered, three digit interstate signs (where they go)

north or south

odd numbered, two digit interstate signs (direction)

rectangle (shape meaning)

regulations or guidance (sign shape)

pentagon (shape meaning)

school zone and school crossing (sign shape)

lime green (color meaning)

school zone or crossing (sign color)

octagon (shape meaning)

stop (sign shape)

red (color meaning)

stop, yield, or prohibition (sign color)

brown (color meaning)

tourist and recreation guidance (sign color)

diamond (shape meaning)

warning (sign shape)

down pointed triangle (shape meaning)

yield (sign shape)