Complex sentence: Due to the exposed location, strong winds cause problems for high-sided vehicles, early in its life a double decker bus was nearly blown over the side but luckily came to rest leaning against the parapet railings.
Split into simpler sentences: Due to the exposed location, strong winds can cause problems for high-sided vehicles. Early in the bridge's life, a double decker bus was nearly blown over the side but luckily came to rest leaning against the parapet railings.