In Moldovan driving safety, what is the primary danger when driving over bridges and viaducts during late autumn and early spring when ambient air is near 0°C?
Answer and explanation
Correct answer: D. Black ice forms much faster on bridge decks due to cold air circulating underneath the road structure
- Step 1: Elevated structures lose heat from both top and bottom surfaces, causing frost and black ice to freeze on bridges long before regular roads. Answer: Black ice forms much faster on bridge decks due to cold air circulating underneath the road structure. Why not the others: Ground insulation protects normal roads, while bridges freeze prematurely.
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