On the way we talked about the road sign Bridge Ices Before Road. I always wondered, If that's a problem, why don't they just build the bridge out of the same stuff they use to build the road? Drema explained that the bridge isn't made out of different material than the road, but that the bridge ices quicker because it's alone, hanging there without the land under it to keep it warm.
Rob Sheffield, Love Is a Mix Tape
alone, bridge, heat, warmth