That traffic sign is called a "crossbuck".
Railroad crossing signs are either a white x shape with the words railroad crossing inside of them or a yellow circle with a black x and the letter R on the left and right side.
It is red and white shaped like a cross.
Yes. some are yellow and shaped circle with black 'X' and R R . and some are just the 'X' shape and white in color with 'railroad crossing' in black. one word for each piece of matieral that is used
A Cross-buck *Added - These signs, with the words RAIL ROAD CROSSING, are required at nearly all publc highway-railroad grade crossings in the US, and are generally mounted within 20 feet of the actual crossing. In Canada, a set that is white with red border is replacing the US type.
An advance railroad sign is round and has a yellow background with a black X and black R's on each side of the X. The sign at the site of the tracks is an X shaped sign that is white with black text and says "Railroad Crossing" with the words crossed on each leg of the X. Crossbuck.Read more: What_is_the_color_and_shape_of_a_US_Railroad_Sign
Shaped like an X
An arc, or crescent shaped area beside the Ka'bah.
An advance railroad sign is round and has a yellow background with a black X and black R's on each side of the X. The sign at the site of the tracks is an X shaped sign that is white with black text and says "Railroad Crossing" with the words crossed on each leg of the X. Crossbuck.See the related link for a site with pictures of US traffic signs.
Sheep
A wye is any object shaped similar to a letter Y, especially a Y-shaped connection of three sections of road or railroad track.
Children Crossing/ a school warning sign
A crescent-shaped window is called a Lunette.